Reconditioning a Prius Hybrid Battery Pt 2
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- čas přidán 16. 10. 2020
- In this part 2 video, I walk through my process of reconditioning a 2004 toyota prius hybrid battery pack.
Tenergy T180 - amzn.to/3dkdyCn
Tenergy TB6B - amzn.to/3tVJeEq - Auta a dopravní prostředky
for those that might be having the same problem i had - not being able to read the capacity at the end of cycles except the last cycle - i found the trick! on the screen after the cycle stops, there are two buttons at the bottom. the button on the bottom left is 'ESC', to go out to next higher menu. the one on the bottom right is 'Graph' to show you a (pretty useless) graph. between the two buttons is the word 'CYCLE' (if you're cycling as H-EV Tech describes). the trick is that if you click on the word 'CYCLE', you get a screen with the data from the cycles. it doesn't look like a button, but it acts like a button. the data from the cycles shows max charging mAhr and discharging mAhr for each cycle.
DOOOD. THANKS
Note: you need to start the cycle from the second page of cycle settings for this to be active. Wasted a lot of time trying to figure out why it only worked sometimes.
@@AsmodeusInflect I have no words for your awesomeness right now. I NEEEEEEEDED this information!!!!! If this works, can I send you $5? (If I had more, I would probably have bought a Green Bean instead of trying to figure all this out.)
I also subscribed to your channel.
Anybody else have issues with their charger not displaying the discharge mAh? I've got Vp and mAh for CHG and Va for DISCHG, but 00000 mAh for DISCHG
did you figure out your mah discharge data?
Very good breakdown! Loved that you included a spreadsheet layout, not many go into such detail in this area. Thanks a bunch!
Dude thank you! I can't tell you how much this video helped me!
Thankyou so much!!!
I just completed this job w the tenergy 180 per your suggestion
Only trouble was the orange safety plug at the end (ty priuschat forum)
Your videos gave me all the necessary details to complete the job! Thankyou so much
This is why I do it!
Nice job ! I have not seen any other video like this. I now Definitely understand much better how to balance a battery pack.
Thanks.
Subscribed
8:35, instead of stripping an audio wire or using solder, another option is to get a section of common electric wire used in home 110V networks. There are 3 solid copper wires in each of those wirings, and it is very easy to strip one with a utility knife. Or just cut a wire long enough to use the exposed ground wire inside w/o strip any black or white lines.
Thank you so much! I learned so much.
I just did the battery in my camry.
I started with Dr. Hybrid app with LET of 32.68%
And with your help the LET is 77.02%!!!
Thank you so much!
Hi Craig, How about your battery after a year? I have exactly the same 32% lifetime left. Thinking about the procedure and interested of your result in long therm :) I would appreciate your experience.
Thanks for the info man, about to rebuild my battery off my 3rd Gen 2012 Prius. Been noticing that the MPG has been tanking sharply especially over the last 3 months. Had done cleaning on my cooling fan 2 months ago though I am yet to deep clean those nasty bus bars which I doubt have ever been cleaned since the vehicle rolled off the factory floor. Maybe this will help though I am looking forward to also balancing the modules to get a true picture of the true life expectancy of the battery. Loving your content from Nairobi- KENYA
i followed the process H-EV Tech outlined in this 3 part video series and it worked for me. my prius had 240k miles on it and i got the red triangle of death. i had the p0A80 error code. that was back in late june. it took about a month of elapsed time to get it back on the road using the process outlined in these videos (i only bought one tenergy unit). the car has been back on the road now since early august and it's doing ok. mileage had dropped to less than 35 mpg before the red triangle; now it's back up to 40 (after a reset). i had many modules that had low capacity. i ended up shooting for 4000mAhr as the 'bar' to get above. i replaced two modules and just reconditioned the other 26. i would cycle until i got above 4000 and i would punt if 5 cycles didn't get above 4000. some were much better, e.g. 5000, but many ended up just a little bit above 4000. i don't know how long the whole thing will last - we'll see. i did the step where you bring them all to the same voltage by tying them all together in parallel. i used romex 12ga wire for that, happened to have some in the basement. i also followed the balancing step (where you pair modules to get similar capacity for each pair of two modules).
thanks H-EV Tech! my prius would be toast without your videos!
Makes me feel good to here that word again/memories?
Romex. I gotta hit that cycle button
My next check.yep the graph/not much there.ive seen 8 something one cell 1/and 11hundred on no.2
Who nos?what that was/I thought
WOW!
How is it going a year later?
@@cory5233 the car had about 240k on it when i reconditioned. now it has about 250k. just recently (last month), my daughter drove it to LA (about 400 miles) and it got the red triangle on the way! she kept going and it made it. then the red triangle went away, and she drove it back (!). red triangle is still gone. i ran diags and it shows a couple of weak cells, not ones i replaced last time (two codes, one for the cells out of spec and one P0A080). so i guess the upshot is, if you start with an old battery, some of those cells won't last too long. when i did the refurb, i used 4000mAhr as the threshold - if cells had more than 4000, i considered them 'good'. (some were above 4500, but some were not). the group that is too low now is group 14, nearest the driver's side of the car. last time it was a different group.
@john greene Thanks for the update and all your data points. It's really helpful for me to target the threshold. I just started reconditioning my pack. Only cycled a few cells but seeing some in 5000 range.
Great video, thank you!
Thanks for showing your balancing method, I was wondering how to do that.
Great video!
Great job done
Great Video!
Great info! Thank you
I really like the way you reconditioned your Toyota Prius hybrid batteries. I am trying to follow your process to recondition my Lexus RX400h and I am ordering the same charger that you used on the video. My individual cell has a voltage about 10.4 V and I just wonder if you can recommend how I can set up the voltage and current for charging and discharging. Thanks
Great video👍🏽 got the same charger because of your suggestion I had originally physically balanced all the cells before balance charging which I followed to the letter by your direction, had a few minutes to figure out how to start it 🤪 you have to hold the button down for a few seconds/ I haven't gone so graphed detail as you have and I'm using written notes instead but I will keep you updated if that's ok ? Since I'm only on the first one ☝🏻 thank you 🙏🏽 so much again
Nice video!
Great detail! Thanks for sharing man! I have a Turnigy Reaktor that I think can perform close to the same and will read into the details I can set for the Cycling process.
Wondering if you used the Internal Resistance function on your charger for any of the cells to compare as my understanding balancing that is important as well, though maybe is related to the charge cycle and capacity in relation to same voltages since that makes sense I think as well?
Please detail your thoughts and experience if you can please. Very curious to know. Thanks again for sharing, man great detail.
This series of videos have been so helpful to me in Reconditioning my battery pack! Thank you so much for taking the time to post this for us!! I do have one very important question just so I don’t mess anything up. Are there exact settings when charging all the modules together? I have followed every step and I have arranged them all and am now trying to figure out the settings you used when charging them at the end. I understand you charged them at 1 amp but I’m not sure what capacity and the other settings to use. Thanks so much again!
After more careful browsing of the comments, I was able to find an answer to this question by @stacey hill thanks 🙏
Haha
THANK YOU!
I see one answer just below my text.
I'd better read more comments!
I was seriously thinking of returning this charger.The guys Q 3x whatever seems easier!
The prius techs says you should do Dcharge/charge this is very important step.
Thanks for this informative video. It was extremely helpful to give me the courage to work on our vehicle myself. I received the red triangle just days after buying our 2004 Prius. When I opened the cover, I discovered that 5 of the modules are smaller. All modules test 7.99-8.01, even the smaller ones. I assume that the problem is the 5 irregular-sized modules. I plan to replace those 5. Does that sound like a good solution?
Thanks a lot for the great video! It is informative and somehow very entertaining! I enjoyed watching it!
I have one question: After cycling, you ended up with each module being discharged am I correct? (because it's a Charge/Discharge Cycle)... Did you then completely charge the whole thing when in parallel? Or did you charge each module individually to their final capacity and then go for one more charge in parallel at 1A for a couple of hours? Thanks in advance for the engagement
Great video. How do we know that it would be save to discharge at 5 amps and charge at 5 amps individual modules?
Thank you👍
hello , great video first of all !!!!
do you charge the cells before start doing the test ? or does that machine does it for you basically? also how long should i leave the battery balancing after the cycles, thank you very much
great video - thanks very much, H-EV Tech!
i just started trying to recondition my HV prius battery. it's a 2006 with 240,000 miles on it and i got the triangle of death. i'm not sure yet how many modules i'll have to replace (only one had failing open circuit voltage, but others may have bad capacity; we'll see). i'm following the method you outline - really appreciate your detailed explanation!
i'm not sure i'm following the method you used correctly. i set up the t180 as you described, with charge and discharge currents 5A each. but often the discharge current the display shows is more like 2 or 2.5A. am i doing something wrong, or does the t180 vary the discharge current for some reason? (i'm using kind of cheap alligator clips to connect to the module and there is ~1v of loss in the clip wires - will that confuse the t180 and cause it to use less discharge current?). i originally setup to do 3 cycles at a time (3T), but when the 3 cycles were over, i couldn't find any way to read the discharge capacity after the first or second cycle - there was no data anywhere i could find. is there a trick or a special menu to read out the discharge capacity of each cycle?
Thanks, good video !! At the moment i have my Lexus GS450H batterypack at of the car. 1 defect modul. I measured the capacity of the other modules and find 9 additional weak modules. The rest have a capacity from 3512 to 5155 mA/h. Do you think it makes sence to pair this modules in blocks to have a runing battery with lower capacity?
Would you happen to have the spreadsheet that you used available. Would you be able to share it. I like the way you are drilling down to diagnose and repair the battery.
Thanks
I'm watching this again and I see what you did here with so incredible... But how long did it take you to do this whole project? Even with three chargers it must have taken you more than a week..
I just finished cycling each individual battery cell. now I’m about to do the battery as a pack. But what settings did you use for capacity and Delta Peak.? Thank you for your help
Thanks very good video, but could you explain how to balance the battery pack, step by step.
This is good because it shows in detail how you had the settings.. My question is that if I did two modules at a time I would double the voltage for charging but would I also double the capacity from 6500 to 13000?
After you charged/discharged the cells, what voltage did you bring each cell up to to balance the pack?
Im new to hybrids and pack 8 in mt 08 prius is bad. I got the dealer i bought the car from to give me 18 modules to try to charge/discharge them. I bought the T180. Check voltage on these and most of them are at 7.4. Im charging/discharging each one 5t now to see if they are good. I thank you for your videos, huge help. What are the settings on the T180 do you set when balancing the block? Im an aircraft mechanic so im just going to use safety wire when I balance them.
Did you do each cell individually or did you do a series of cells per time
After you balanced the pack what did you set the charger voltage to charge the whole pack? What voltage in the end did each cell test at?
I have 2 of the the same Tenergy T100 chargers. They charge at different rates and maximums even though they are set exactly the same. I have reviewed the factory settings for Charge and Discharge- they are the same. Any ideas why and how to fix?
Thanks for the great tutorials.
How do I check the cells current mAH before I do a cycle on it? So I can record the before and after results? I also bought the T180
I ended up using solder too because I didn't wanna splyce some wire as well. That's crazy. I put the batteries in seres as well and they seemed to balance out in just a few minutes. Are you sure they have to be balanced for hours? My multimeter had them all at the same volt but of course it balanced to the voltage of the weakest battery.
great job. I learned allot.
So when you said you balanced them and wrapped the sodor wire to each cell at + and - parallel, did you hook up the t-energy to the end wire and trickle charge at 0.1-1.4 amps to obtain a balanced total charge of 7.6 or something and then let it sit for 16 hours before plugging in back in car? Thoughts please? I did receive to eBay batteries higher than the rest...8.10 and the others are 8.05....what do you think?
Hi, how did you come to the conclusion that 5A was a safe discharge current? I would love to go this route, but others seem to be using 1A rate. Thanks!!
When balancing (solder wire) or anytime when more than 1 module is linked to another, are you wearing linesman gloves?
Will these steps apply to gen 3 Prius?
What did you use as a cut-off voltage for discharge? You said you established 4000 as your discharge mah threshold, is that based on 80% of max? Thanks!
I have a question when you do Charge - Dischrage do you charge it again to finally put it in the car or leave it discharged? and I saw the balancing video when you connect all Positive and Negative do you attach it to T180 or does by itself and how long do you do it. can you please explain the process?
Hi what setting you used to charge the complete pack at once
I’ve never worked on battery before- what are the charging settings when I am balancing?
t180 on your video on cycle setting was discharge end volt at 6.3v. Did it intelligently reach the max 8.x volt and cycle back down to 6.3v? Or you set max voltage somewhere? Also 5A took you how long per cycle?
What settings did you use on tenergy charger to charge the whole pack? Thank you
thank you so much!
i ve got a question is it better to make discharge->charge cycles then charge->discharge?
and is it okay that with the settings as you did when charging it goes to 9,5V? you said that this modules dont like to be overcharged
thank you and i hope you ll answer)
On the Amazon Prime description of the T-180, it says “ NOT Intended for charging/discharging PRIUS battery.”
All of your videos are great. I have a question for you? About how long would it take to rebalance every module, including six new modules. I'm sure you don't know exact, but could you give me a rough estimate so I know if I should take off some time from work
This ultimately depends on how many and what kind of charger/discharger you have along with how long you want to cycle charge each module (I read 3-5x is generally acceptable). I had 2 Tenergy T180s and to cycle charge 3x it took about 7-9 hours per module. I had it timed out so I could get about 4 modules done per day for a total of 7-10 days with the replacement modules. I didn’t take any time off work but I also had a second car I could use for commuting.
If I had to do it over again, I would probably have gotten a 3rd charger knowing I will eventually use it as I own two 2010s :)
I ordered 2 of the T180 chargers and plan to refresh a spare pack I got from a wrecked Prius. I own 3 gen3 cars and want to have a pack ready to go in case of failure. I did not see in the video how you calculated the discharge capacity. Does the charger provide this info at the end of the each cycle?
Hello, for hybrid or nimh batteries to work for many years, they require passive and permanent balancing due to their low cell tension, they will not be the same. This is solved by connecting a shunt zener diode with its current limiting resistor. It balances all the cells at the same voltage. It is not perfect and a small percentage of capacity is lost, but it is better than a dead battery after 3 years. This method is highly effective, reliable and easy to integrate, achieving triple the useful life of a battery.
Alex Andres Can you provide more detail on this practice, please? Do we need to buy a specific current limiting resistor or does any shunt zener diode do the job? Where do we install the shunt in our battery circuit? Thx for your help
@@tommills2097
first using electronic software simulator for your need requeriments.
How long would a solution like this last you think ? Just curious
I purchased the T180 charger that you are using in the video. When using it on the battery block from a 09 prius, it keeps going into "delay" and doesnt complete cycle. THis was using the settings in your video. I could really use your help!!!
In the settings menu, set the safety time out function to 500...
hello thank you for all the videos ,I need your opinion on Prolong charger it recondition the battery while its installed in the car it have some good reviews and bad reviews since you owned many Toyota Prius did you use this charger or know anything about it .this is the place where it sold Hybrid automotive prolong charger
Thanks for making such a nice video. Its very informative. Please i am a mechanic and i love to learn about hybrid systems but not many people are teaching about it. Can you help me to learn about this pls
What is the set up to charge the whole pack
Hi! Great overview of balance charging and love the spreadsheet. I just got a couple T180s to do the same thing- when/where do they display the capacity data from each cycle that you entered into the sheet?
It will certainly display once the cycles are complete. Once a charge or discharge event is completed you should be able to go back and view them.
Instruction manual can be downloaded here: power.tenergy.com/tenergy-t180-100w-balance-charger-with-touch-screen-metal-housing/
At the end I'm not getting results for all cycles, only for the very last one. When all is completed I get the results with arrow down in the top right corner, and at the bottom I have 2 active buttons "ESC" and "Graph". No way to cycle to previous results. Manual doesn't seem to talk about it either. Either I'm missing something or my charger is defective...
I contacted the company to see if they would advise how to view each cycle, they stated this was not possible, only the last cycle results will be visible. Don't know if they had some kind of firmware update and got rid of it, but that is disappointing.
@@dennisn9207 if you see at the bottom of display screen from left to right: ‘ESC’, ‘CYCLE’, ‘GRAPH’. ‘ESC’ and ‘GRAPH’ are highlighted so that it encourages entering (tricked me also). To view the charge/discharge info recorded select ‘CYCLE’ while connected to see the given data for each. All should be there if you haven’t already ‘ESC’ or disconnected
Ho ho he hum
Keep reading brother.
Press (Cycle)
What were the settings for the tenergy when you did the load balance step?
Do you think you would get decent result by simply replacing the low voltage cells?
To add to my prior comment, it shows on the stage "stand by" and i have tried on multiple blocks
Hello. I recently replaced 2 cells in a bad block. (one of the cells had actually blown). The Dr prius app recognized it as block #9 was bad. It was kicking the red triangle and throwing the transmission into limp mode.
Because I was short on time I simply replaced the 2 in the bad block. The car no longer goes into limp mode.
Now it says block 8 unbalanced and still gives the red triangle, but does not disable anything like before.
Would looping like you mention here and running the cycles help balance out the pack until I can more extensively recondition each cell?
When you balance it, what watt do you set it to charge all the Modules? I would appreciate it if you answer this question.
Do you have a video that shows how to put the bus bars back on safely and hook the battery back up in the car safely?
Is it necessary to discharged the block battery and put it in the cycle If the battery power is very low and is near to maximum discharging?
I'm currently trying to apply this process to my HAH batteries which come in sticks of 12 D cells, for a nominal voltage of 14.4V. When I set the current limit to be 5500mAh (the tested value of the cells I plan to replace bad sticks with) the charger just kept going. It also brought the voltage all the way up to 18V. Do you think that's normal?
How you set the charger when you charge the all and how long you put it
nice explane, I have a question about how do I can undestend that the battery is bat ?
I use I Max mini charger , the charger does not show bat battery , only capacity.
Your video is very useful for me, thanks a lot )
What mode and settings did you use on the T180 for charging the whole pack together in the last step of cell balancing? Was it the power supply mode?
any particular vendor you guys are getting replacement cells from ? I got 6 from a vendor on ebay only 4 could be restored to greater than 5k . another ebay vendor I got 14, only was able to restore 6.
When I was charging my modules, using the same settings as you had for the T180, other than swapping the discharge/charge order, a lot of my batteries ending mAH were up around 7200, some even going about around 8200 mah even though it was set o charge up to 6500. Is this normal? If not, how much am I risking damaging my modules?
I purchased the T180 and during the Discharge I selected 5 Amps, and it only discharged at 2.6Amps. I called Tenergy and they said this discharge wattage was held at 20Watts, Not the 100Watt Charge Power. Were you able to get a higher Load with the T 180 somehow?
After the 3er cycle what is the lowest voltage and MAH to keep a cell
How can I see my modules condition from original condition (before charge them) and after process?
How many volt do you charge ?you connected all - module together and + one togother. How many volt for all 28 modul you charge? How many amp for all?
How long did each tenergy model take in general tor a module?
Can you post the spreadsheet?
Gen1, 182k, p3030
Is your battery still working properly?
Will the trnergy TB6-ab smaller charger work also.
Hey- so I have those smaller t6b chargers- 2 of them… should I return them?
Thanks for great explanation, followed the process and I seem to get good results.
How do you get capacity results for every single cycle when you have set to 3 or 5? All I get is the very last result when it's done and doesn't show me previous cycles. Unless I do one cycle at a time and record the results
For anyone reading from the future, this is answered in the top comment by a user named John Greene:
"for those that might be having the same problem i had - not being able to read the capacity at the end of cycles except the last cycle - i found the trick! on the screen after the cycle stops, there are two buttons at the bottom. the button on the bottom left is 'ESC', to go out to next higher menu. the one on the bottom right is 'Graph' to show you a (pretty useless) graph. between the two buttons is the word 'CYCLE' (if you're cycling as H-EV Tech describes). the trick is that if you click on the word 'CYCLE', you get a screen with the data from the cycles. it doesn't look like a button, but it acts like a button. the data from the cycles shows max charging mAhr and discharging mAhr for each cycle."
Make sure the number of cycles is hi-lighted before you hold the cycle button to start the first cycle. Then I was able to toggle through each.
Hey how come you didn't do an internal resistance test?
Does our T 180s show the high mah and low mah for ea cycle?
I dont think so.
Also I dont see it showing my 3 cycles.?
Maybe 240min. Cut off should be
increased alot.
Also looks like it charges at a min.of 10V?
Looks like wed want no more than 8 Volts?
Thanks.
On my 3rd module now.
Where did you buy the modules?
What settings do you use to change the engine pack?
What setting did you use when you were charging the whole pack with the tenergy at the very end?
Same question here I couldn't find the answer :(
thanks for video i have 2005 Prius with p0A80 and cell number10 low.
l removed the battery and all of them are 9.61>9.71.performed the load test and the hold the voltage
.I bought it used and i am driving it for about a year and this just happened. i don't know why it is so high.(voltage). . i thought if it has internal short it would not pass the load test but it did. can you help me with it thanks
Thank for your video.and what the name of the recharge equipment ?where do you buy them?
I have the recharge equipment linked in the video description.
My t180 shows cycle times on a 2nd screen accessed by pressing "cycle" button and scrolling up and down.
Charge mah is 4500 and discharge 4800
Which is my mah for that cycle if I'm going to determine condition of the module?
How did you set the T180 to balance charge the whole set of 28 at once?
JUST USE YOUR IMAGINATION
Pairing a module with the highest capacity with a module with the lowest capacity is NOT a good approach. I tried this, and experienced both overheating of the pack and also got the triangle. I paired the modules based on capacity, and the paired pack is lasting for more than a year. I have tried several strategies, but I have found the following works the best. I charge an individual module up to 8.26 volts @ 3 amps. I then discharge the module using a single headlight (which is about 2.5 amps), and I track how many minutes and seconds it takes to get down to 7.0 volts. I have found this is a good range to test.
How's everything going on my new customer with a hybrid I bought with a bad battery I don't have the death of triangle but I had three batteries that were leaking acid I replaced those and everything looks good I bought four t 180s and none of them work they all say error I need some hands on hooking up the lithium battery right in front of me showing me how it charges actually hooking up the positive and negative to the battery with the wall outlet plugged in showing me the features of what I need to have my setting set on and once I press enter holding it down after 3 seconds like you mentioned have it start charging I get all that and it says error.
I seen a few videos nobody has hands on everybody just talks about it and just mentions it one either has the battery and explaining battery stuff or one either has the t180 in it and and mentioning t180 stuff but nobody has a video of actually putting them on going through the features and watching the battery actually start charging all other videos have people going through that but nobody has a t180 with the actual lithium Toyota Prius module battery disassemble just charging one everybody said everybody's charging one but nobody's actually using the t180 to charge one or to have the battery pack hooked up and then all together and you hooking it up a battery that's on the battery pack all I got is error I want and did exactly what you said I followed all your steps what am I doing wrong can I get some help can I leave my phone number I'm just trying to charge these batteries that are good they're all at 7.9 but I just want to cycle them and recycle them I do have three batteries that are at 5.9 those are the three I bought from somebody because my three were leaking acid so I purchase them all of them were 5.9 so I'm stuck with four t180s they all say air and I'm doing exactly what you said to do the only thing I don't see is somebody actually doing it right in front of me with a battery and it being hooked up with the charger speaking and actually charging it on video right in front of me.
Great video I learned a lot I'm a new Prius owner all your thoughts and everything you talked about was right on but I got this t180 that I don't know how to use on the battery I know how to use a t180 and I know how to use my battery but I don't know how to use the t180 on the battery with the battery showing step by step it actually charging without it saying air once I'm finished with everything holding down enter three to four seconds and then the air death of error comes up we have the death of triangle now we have the death of ertor
How long is five cycles per cell supposed to take? Mine are taking upwards of 6 hours each.
Q: when you hooked up all the modules in parallel (plus to plus, neg to neg) - the last step before reassembly - why did you trickle charge at 1A?
I ask because I've read others who simply let the pack sit 24 hours in this 'parallel' state, and found the pack adjusted each module to be the same. (This step assumes that the modules have been reconditioned and charged to within .05v of each other first...)
Trickle charge was more to increase the voltage for each module so when I put it back in the car its around 65%. Letting it sit for a while is the most important part.
@@HEVTech1 what's the correct setting (V, A, Capacity ) for the trickle charge in the parallel state. I couldn't find any information about that. Thanks for the great video.
How long did the typical 5X cycling take with the Tenergy T180? I had a Gen 2 which had battery failures 3 times (200K, 224K, then 330K). Between the 224K & 330K the battery was balanced and cycled by someone else, which made a huge difference. I now have a Gen 3 at 200K and planning to prepare a spare this spring. I just assumed I can do 1 cell per day over 1 month. BTW, I am located in KC area (Overland Park) if you ever wanted to get really nerdy, would be cool to meet up.
Are you seeing any issues with your current battery that make you want to prepare a spare battery? NiMh has a self-discharge rate of about 10%/month. If it were me, I would store all the cells in parallel and trickle charge them until you decide to end up using the spare, then all your cells are balanced and ready to go.
I would certainly not be opposed and would be happy to loan you my T180 so it takes less than a full month lol :)
@@HEVTech1 That makes sense. Never thought of that for the storage long term when not installed in an actively used prius. I own a gen3 and gen2 now as well... though debating investing in another gen2 pack for some cells since I see one block is consistently low per Dr. Prius app and another block does drop rather lower at times.
Hi , nice job!!! How did it go? No more triangle of death? I want try like how you did ^^
I am working on registering the car as well as some other cosmetic fixes. I will have another video out soon showing my results
Where do you read the discharge capacity on the charger. I don't get any where close to the 4000-5000 range. Ill get in the 300-500 range. Im using the same parameters that your using. Are my batteries that bad? Or am I doing something wrong. Please let me know. Thanks