Thank you for the information. I don't like the idea of storing these batteries at 50% when they are my backup battery for my Bluetti power station in case of a power outage. I want them to be 100% capable so my power station lasts longer. Weird that in the event of a power outage the first thing I need to do is charge my backup battery.
That's a good point in your situation. Don't think it would hurt to be full for shirt term storage. Most manufacturers recommend for 6 months or longer storage at half charge or so. But, we all make adjustments given our unique situation. I found your scenario interesting, for sure. Aloha 🤙
I went from AGM 100ah to Battle Born 100ah to Ampere Time 100ah ( per your video recommendation ) I could have bought an Ampere Time 300ah for what I paid for the 100ah Battle Born . Thank you for all your video help .
Putting a multimeter on a LiFePO4 battery tells you very little about the state of charge, because the voltage curve is fairly flat across the usable capacity range; you need a shunt to measure the Ah going in and out (and they don't all cost $$$ like the Victron kit)
According to the 2021 research paper "The Degradation Behavior of LiFePO4/C Batteries during LongTerm Calendar Aging" (available free on the web), the best way to achieve high LIFEPO4 battery storage life (20+ years) is to store at high charge (90%+) and room temperature (25C). Storing at temperatures above 25C degrades the battery life significantly, while storing at lower state of charge (SOC) can also cause degradation.
I bought two 24v 100ah Ampere time batteries and I emailed Ampere time about the proper way to store these batteries since i rarely use them ( i want them for emergencies), They instructed me to store them at 50% charge. But every 3 months i discharge them down to 20% and then charge up to 80% charge and then discharge them back down to 50% SOC for storage,
According to Chins operating manual for long storage, over 6 months it states: "Discharge battery to 5% capacity and then fully charge before continuing to store the battery". It further states: "If the battery has not been used for 8 months and you have not completed a cycle of discharging and charging the battery and the battery has quality issues, chins will not provide warranty services".. I just purchased 2 100 amp batteries and upon reading the manual came across this issue. What are your thoughts? Thank you for all your videos..
question! i use a set of four 3.2v LiFePo4 batteries in my camper van which is charged via solar panels and recently due to rainy weather conditions the batteries managed to drain down to 12.0v. Because of this i was looking into LiFePo4 battery chargers online in case this happens again. So i wanted to ask how you are charging your batteries after long term storage/how can i charge when my solar panels arent an option? Also, do you recommend i disconnect the batteries from my converter when not in use for long periods of time? thank you!
@@dukeman7595 the batteries are from china and did not come with a manual, the seller no longer has the listing either so ive been looking for other solutions
Does heat hurt these batteries? I have a CHINS 200 amp LIFPO4 on a boat in Florida that is used 6 months each year. Typically I pull the battery and store it in the house @ 13.1v. Would be easier to leave it in the boat but I think about the hot FL summer heat. Any suggestions?
Extreme heat is not good, and I can imagine your boat gets pretty hot in Florida. Ideal storage temperature is between 40F-95F. Personally , for intermittent use such as you describe, I think what you are doing is the way I would go too. Aloha!🤙
@@gruponemesis 3.65v per cell is 100% charged, with the charger connected. Now With The charger disconnected, 3.4v per cell is after the battery has fully rested, but is still 100% charged. So if you have a 4 cell that is 14.6 with the charger connected! and 13.6v at rest, You got yourself a full battery.
Thank you for the information. I don't like the idea of storing these batteries at 50% when they are my backup battery for my Bluetti power station in case of a power outage. I want them to be 100% capable so my power station lasts longer. Weird that in the event of a power outage the first thing I need to do is charge my backup battery.
That's a good point in your situation. Don't think it would hurt to be full for shirt term storage. Most manufacturers recommend for 6 months or longer storage at half charge or so. But, we all make adjustments given our unique situation. I found your scenario interesting, for sure. Aloha 🤙
Get a DC to DC charger and you can plug it into your car
I went from AGM 100ah to Battle Born 100ah to Ampere Time 100ah ( per your video recommendation ) I could have bought an Ampere Time 300ah for what I paid for the 100ah Battle Born . Thank you for all your video help .
Mahalo for sharing that! It keeps going hearing that...aloha 🤙
Putting a multimeter on a LiFePO4 battery tells you very little about the state of charge, because the voltage curve is fairly flat across the usable capacity range; you need a shunt to measure the Ah going in and out (and they don't all cost $$$ like the Victron kit)
Ah yes. Just submit them to your cats and she'll take care of it...
Thanks for the idea. 😊
According to the 2021 research paper "The Degradation Behavior of LiFePO4/C Batteries during LongTerm Calendar Aging" (available free on the web), the best way to achieve high LIFEPO4 battery storage life (20+ years) is to store at high charge (90%+) and room temperature (25C). Storing at temperatures above 25C degrades the battery life significantly, while storing at lower state of charge (SOC) can also cause degradation.
I bought two 24v 100ah Ampere time batteries and I emailed Ampere time about the proper way to store these batteries since i rarely use them ( i want them for emergencies), They instructed me to store them at 50% charge. But every 3 months i discharge them down to 20% and then charge up to 80% charge and then discharge them back down to 50% SOC for storage,
That is great information! Mahalo for sharing that with us! 🤙
I recently received a pair of the 12v100ah Chins smart batteries. They were manufactured in june and july last year and were at 13.16v when received.
Sounds about right 🤙
According to Chins operating manual for long storage, over 6 months it states: "Discharge battery to 5% capacity and then fully charge before continuing to store the battery". It further states: "If the battery has not been used for 8 months and you have not completed a cycle of discharging and charging the battery and the battery has quality issues, chins will not provide warranty services".. I just purchased 2 100 amp batteries and upon reading the manual came across this issue. What are your thoughts? Thank you for all your videos..
Thank you for sharing this valuable information.
I have a lithium battery that drains very fast, also charges fast, any idea what’s going on?
Would need more info on your system..i.e. what you're running, and charging etc. 🤙
Luv your site and your input….so could I put 4 of these 12v “in series” inside my 48 volt Ezgo golf cart? Thx so much Sir!
I've personally never configured a 48v system, but my understanding is what you mentioned would be correct. Mahalo for being part of the channel!🤙
Hi. When you say after a few months put a little charge on it, do you mean charge it back up to 50-60 or all the way to 100%
question! i use a set of four 3.2v LiFePo4 batteries in my camper van which is charged via solar panels and recently due to rainy weather conditions the batteries managed to drain down to 12.0v. Because of this i was looking into LiFePo4 battery chargers online in case this happens again. So i wanted to ask how you are charging your batteries after long term storage/how can i charge when my solar panels arent an option? Also, do you recommend i disconnect the batteries from my converter when not in use for long periods of time? thank you!
Read the manual that came with the batteries, that's your best bet..
@@dukeman7595 the batteries are from china and did not come with a manual, the seller no longer has the listing either so ive been looking for other solutions
Does heat hurt these batteries? I have a CHINS 200 amp LIFPO4 on a boat in Florida that is used 6 months each year. Typically I pull the battery and store it in the house @ 13.1v. Would be easier to leave it in the boat but I think about the hot FL summer heat. Any suggestions?
Extreme heat is not good, and I can imagine your boat gets pretty hot in Florida. Ideal storage temperature is between 40F-95F. Personally , for intermittent use such as you describe, I think what you are doing is the way I would go too. Aloha!🤙
My lithium says to store at 50-60% for longer than 2 mos. At 13 volts
Sounds about right to me🤙
Yeah, yeah great beautiful sunshiny day. Can we get on with it now please
I know liPo batteries can’t be used at cold temps, but can’t they be stored at cold temps? Down to -30F.
No way I would ever try to store them in that extreme temperature. Aloha 🤙
Thank you.
Mahalo brother!🤙
Crack the whip and put those batteries back to work. Have fun stay safe.
That's the plan! Aloha!🤙
Ty sir
🤙
13.1 is 50%!!!!!!!!!!!
what is full?????????
14.6 charging voltage or
13.6 resting voltage
= fully charged
@@t-money1463 that is even more confusing now.
how about you tell me in english?
with no gawd damn chargers connected
@@gruponemesis 3.65v per cell is 100% charged, with the charger connected. Now With The charger disconnected, 3.4v per cell is after the battery has fully rested, but is still 100% charged. So if you have a 4 cell that is 14.6 with the charger connected! and 13.6v at rest, You got yourself a full battery.
@@WCO3 what the fack ever happened to 12.8 being fully charged?
@@gruponemesis You're talking bout lead acid bro, hes talking lithium iron phosphate.