CHEAPEST Lithium Conversion for old power tools $20 including Battery
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- čas přidán 25. 04. 2024
- Old Nicad NiMH tools given a second chance at life.
Stuff I used in the video:
Security torx for dissembling most battery packs: amzn.to/44ityyP
BASIC soldering iron kit under $10: amzn.to/3xTeYBx
Warrior Battery Drill kit at you local Harbor Freight.
After Thoughts about the Video: Only downfall too using the Warrior battery is 1.3ah(in the kit) and 1.5ah are the only off the shelf options. Can't beat the price for this though especially when you get it on sale for $19.99.
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Random Gibberish Makita Porter Cable Craftsman Ryobi Dewalt 14.4v Kawasaki 18v 20v 7.2v 9.6v 10.8v 15.6v 19.2v volt c3 drill saw skill saw skil circular reciprocating Snap On impact ingersol Matco Mac 65 Ford 65Ford SFF - Jak na to + styl
practical, this guy never wastes our time
You are a true treasure for the old school make it work handyman type. Keeping perfectly good stuff working rather than loading landfills with more crap
this should go viral, all these different battery formats are annoying AF
Not saying it's going to happen but, it could happen. The EU has new regulations about batteries that require that they be user replaceable. Considering that the regulation they passed earlier forced Apple's hand to put USB C on the iPhone, it's not unthinkable that they may extend their regulation on batteries to mandate a standardized form factor for tool batteries. There could be plenty of reasons tool companies would appose it but, if any new regulation was narrow enough that it simply meant that they had to connect in a standardized fashion, I could see it being adopted. Being able to choose, the best (for your purpose) tool and then having the companies have to actually compete to make the best (for your purpose) batteries would be a welcome change in my opinion.
Amazon sells every brand adapter for every model battery, porter cable to dewat or makita to dewalt or anything, dewalt power wheels adapters,
@@sendit1158 That's not true.
@sendit1158 Adapters only cover about 1/4 of what's out there. Guys making custom 3D printed ones at home might cover 1/16 of some odd balls.
@@sixtyfiveford That's true, I can't find an adapter for my Milwaukee 14.4 volt drill or my Porter Cable 18 volt tools.
This what is great about CZcams. You can learn useful things and get some great entertainment. Ginger catching snowflakes and living the best dogs life. Thanks for the video brother.
Thanks for watching
So glad I am not the only one that enjoys keeping the older tools going!
I like it! 👍
Your wife should concur
Heh. It's a big community. I'm re-building a 1950's industrial bench grinder I got from an old factory. Delta? Heavy AF.
Converting a 1940's Craftsman Drill press to be a small milling machine.
@@stringlarson1247 Awesome!
I've 3D printed several adapters for old drills that I've bought at thrift stores. You can really go down a rabbit hole converting old drills to lithium batteries. Why spend $100 bucks or more for a new drill when you can spend $20 bucks revamping an old one!
Depends on what you need out of your drill. I mean if you hardly ever use it for hobbies, sure, save a buck. However, there are substantial drawbacks, some of which may be deal breakers for people serious about their tools.
1) Adapters are clunky and tend to increase tool size and some prevent it from balancing on the bottom of the battery to stand upright. Drop the tool and odds are much higher you'll break the adapter than the tool if it didn't have one.
2) Adapters often limit current. It may not matter to you, but why shouldn't it, if you have a concern what power you'd get with a new tool for your money, then you have to consider that you may be sacrificing performance to save a buck? Also if the contacts don't fit perfectly, they can overheat and damage the tool, the adapter, or the battery.
3) Similarly, you usually sacrifice either performance or runtime or both, reusing some half worn out old brushless tool compared to a modern brushless.
4) Cheap/generic tools tend to have cheap/generic batteries with lower capacity, and often fewer recharge cycles if not immediate loss of performance. You might literally get less than half the life out of the frankenstein-tool before it drops below an acceptable performance level to reach for it to use. If you have to reach for something else instead, what good was it besides (in the case of a drill) a bulky screwdriver? Granted, a spare cordless screwdriver isn't the worst thing to have, but the generic tool may also have a crappy low quality and slow charger.
5) Even if none of the above matter to you, then you are still starting with a partially worn out drill, and if doing what this guy in the video did, carelessly slapping an 18V battery into a drill rated for less, then you may burn it out, and depending on whether the battery itself has a BMS circuit built in (some have it in the tool instead), it might ruin the battery the first time it is drained too low.
I'm not suggesting that there aren't any good candidates to update to a Li-Ion battery, just that it's not as simple as merely saving $80 without a lot of drawbacks to get there. I didn't even mention what happens if you get attacked by zombies and try to drill their brains out, only to find that your DIY adapter let the battery slip out.
Frankly, I avoided most of this by switching to Ryobi, who has used the same battery format ever since they started making 18V tools. Their quality and performance has increased greatly over the past 15 years and while not quite up to contractor grade standards, the price isn't at contractor grade levels either, especially not the batteries which do have a BMS protection circuit built in.
Dog catching snow had me lmao😂
Craftsman 19.2 actually ended the line running lithium batteries, for about 5 years. You can buy aftermarket li-ion batteries for them that are probably just as good as those warrior batteries.
Im never disappointed when I stop in for one of your videos, great info here, thanks!!
Hey thanks Man
Got 25 year old hand me down makitas, converted to lithium about 5 years ago. All my power tools use the same cheap batterys. Some of the old ones was 12. No problem with 20 v. Thanks for making stuff like this available to more people. Edit: I haven't found a need to scrap any new machines to convert. I have modded the old machines using 3d printed parts in some cases. But my first ones where made by layers using thin playwood. Still going strong!
Thanks for sharing. That's awesome
Loving Wife bought me a whole nice Sears Ni-cad set decades ago, which as all Ni-cad crap batteries lasted about 6 months. Batteries were hard-to-get/expensive so I mothballed the set. Now I'll Moe-size those old batteries and bring my Sears set back to life! TY Very Much, Sir! Oh and give Ginger an extra snowflake, for me!
Gotta love DoingItCheap !!! LOL !!! Tater Tot says "Woof, Woof to Ginger!"
My favorite guy, and girl (dog). If you were stuck on a island this guy would be you bestie. 👍🏻⭕️❌
Desert*
Nice to save all of these Old school battery powered tools there sixty five Ford
*"THANK YOU!* *"THANK YOU!* *"THANK YOU!*
Man, you are a GENIUS!
I got 4 or 5, maybe SIX, old cordless drills that the batteries or the charger died.
I've been trying to find some way to power the old drills (2 or 3 Craftsman tools).
NONE of the EV/battery mavens have been any help at all & I tried 3 or 4.
The tools are really good about running on all kinds of voltages, they only pull what they need.
I used to pull wrenches so I know how hard it is & how 'creative' you have to be.
So I wanted to let you know I for one really APPRECIATE your video.
Best wishes!
Have a GREAT day, Neighbor!
BTW, I started watching because I had a '66 Ford pickup.
That's awesome. I'm glad you liked the video.
Can't beat an old Ford pickup. I have a 65 and a 66. One day I'll find time to paint the 65 and get it out of body work/paint prison.
That is too much snow for this old man !! Brr cold !!
I converted 2 old Porter Cable cordless drills (a 12V and a 14.4V) this way to use the newer 20V Lithium batteries. Worked on the 14.4V circular saw too! No problems running the lower voltage tools using the higher voltage batteries.
If you have a 3d printer or access to one you can also print the adapters for pennies.
3d printing is the easy part. It's the 20hrs of cad work to design a custom adapter because it's not on thingyverse.
@@sixtyfiveford you got me there. Love the channel Moe, keep it up.
@@sixtyfivefordlol my bosses son has a 3d printer and my boss says "he can print anything" when talking about a broken plastic latch for my craftsman tool case. I asked if his son had a 3d scanner and he said no. Then I asked if he does cad parts, no again.
Like yeah, he can download a file and hit print, big whoop 😂😂😂
I've got a dead Makita LXT drill, good batteries and what was a very useful store-brand floodlight with a dead battery. Thanks Moe, I now have a plan!
Nice work! I’ve been watching your channel for a long time now. You got some sweet ass builds.
Keep up the great work!
Take care.
Dude you are a gem of a channel. Love all your content and creativity. You give a non techy but hands on guy like me hope I can do modifications and whatnot too. Thanks
Thanks!
Had that craftsman set when i started as an electrician
That Makita in the video was my first cordless tool in 1995. I remember it was underwhelming as far as power goes.
I did this when my matco impact died, i grafted the matco handle onto the m12 handle and it worked great
I love the M12 stuff because of the 2 different battery pack sizes. I rarely use my 18v stuff anymore.
I just picked up an old school battery Dewalt allsaw, for 5 bucks, with the hope to convert it to a new system, Ryobi preferably.
They don't seem to make adaptors to allow use of Ryobi batteries on other tools, but you have shown me the way!
I used an old AC power cord to connect to my old drill, then two alligator clips to connect to any battery in a truck, tractor, 4wheeler. Just another option that was free.
Absolutely. Actually have an old Makita somewhere that I did that with.
You are a modern mad scientist ! Love the repurposing of things you do.
The nice thing about adapting old drills to the Ridgid platform is the battery does have a low voltage cutoff. Same with Ryobi (but their form factor is less apt to be adapted).
I'll say it. The Craftsman c3 line isn't retro. Sadly gone, but not forgotten. One of the first brushless battery powered tools I'd ever seen. I was super excited for it coming from the remote controlled world. I still have and use it. Albeit now I use battery adapters, usually.
I'm in love with that Garage
Just what I was looking for! Got a nice Porter Cable drill just like Norm used on New Yankee Workshop- waiting for conversion. Used to get the HF Nicad 18 volt batteries on sale. They were Chicago Electric back then. I used those to rebuild several Black and Decker packs for 18V hedge trimmers and B&D Alligator loppers. Might go Lithium Ion for those...
Years ago I used to salvage those cells out of the Chicago electric as well. They didn't last too long but they worked. Lithium is such a great upgrade.
As always, very creative, thank you
I see Ginger is still catching snow flackes. We haven't seen any new video of Ginger in awile, I hope she is okay. Another great video, thanks for sharing 👍.
She's Great. I just didn't have a current clip this week. The snow catching was just 2 weeks ago.
I built a paint spinner, It works absolutely phenomenally. I refuse to waste another second of my life manually shaking spray paint cans.
12:38 Dog catching snow 😂😂😂
I did that with the same 2 portercable drills but I hardwired the Nimh batteries in and glued the pack to the drill with GOOP and a few others too.. Didn't try lithium fire hazard. Another thing is drill some 3/8 holes in the pack for ventilation
When changing batteries make sure to throw old Ni-Cad into your local lake, creek or river to feed the fishes.
Fantastic work
I've made many of those paint can shakers for guys, all of them thank you, sixtyfiveford
It's because you made them. That makes them awesome.
Different approach than the way I do them, I just use the junk battery pack and put in some contacts in the old pack for my adapters. Always good to see a different approach to a common problem though.
I looooove this channel. This dudes son is lucky. Fuck i wish my pops passed this level of ingenuity to me
Great video, Moe. Thanks.
Brother Love The Way You Think.!, very Useful, I have a Ton of the older Dewalt Nicad platform tools and a bunch of Ridgid lithium batteries & 2 chargers . I bought a job radio a while back, and need batteries for it. Now I know what to do with those batteries for all those tools
That you for the info. AKA kick in the ass to get up and "Just Do it.......!
Thank you brother, ALWAYS THINKING OUT OF THE BOX
be safe, and love for your girl❤ beautiful baby girl
Great video as always
This is why a mediocre but decent tool like Ryobi is a good tool. They have not changed their 18+ system for 20 years and when they converted from NiCad to lithium they kept the same 18+ footprint. Nice job here. Thanks
I definitely give them props for that.
Lovely shop you have
I did it to the Chicago electric brand that harbor freight had but I bought a piece of Amazon now it runs on a 24 kobalt battery and the difference is amazing in power
Keep up the good work great video
brilliant! - will go breathe some new life into some NiMh Snap-On impact drives taking up drawer space. Bought some adapters from Temu to use Dewalt batteries as the donor ;-). Your early termination of cheap new drills that were factory made out of pure sadness to recycle the charger and the battery is however brilliant.
Genius. Thanks
Full Steam Design channel has a cool way to shake up a spray paint can. He modified a bar clamp to fit into a reciprocating saw. Then put a can in the jaws. Take a look.
You can find free 3D printable NiMH-to-LiPo adapters for a lot of different older power tool battery systems on Thingiverse or Printables (on the LiPo side, Makita seems popular, as is Parkside especially here in Europe). So if you have access to a 3D printer and some extra spade connectors you don't always need to cut up a "new" tool to get your old tools running again. I had good success getting old DeWalt 14.4V NiMH tools running on 18V Parkside LiPos this way.
Aww nice love it
My new Ryobi lithium batteries pop right into my old Ryobi tools. Done!
Love it
Sweet info Moe!
Thanks for watching
👍👍👍. Thank you
That's a good deal on batteries. Years ago I went to li-po rc batteries. A 3000mah 18v was like $35. 2200mah 12v were like $6.50. Lol I got 12 of them. I must have about 20 battery operated tools with converted battery packs. I'm still looking for a battery operated ratchet like you did. Thanks for the videos.
Those lipo RC batteries are amazingly powerful.
If im not mistaken the low voltage cut off is built into the battery unless that warrior battery is just that cheap
👍Glad you mentioned the low voltage cut off. Dewalt apparently has the circuitry in the tool so you can brick a Dewalt battery in a different makers tool if your not monitoring it.
DeWalt is pretty robust. The one you really have to worry about is Makita. It's very obvious when it gets low on power. The problem is there's guys out there that still have the mentality that you have to drain a battery to zero /tool doesn't move anymore before you put it on the charger. This is based on an old wives tale about Nicd/Nimh they ended up just killing those batteries.
Thanks Moe.
Hey Moe another great video I kept waiting for you to break out the shoe goop but yeah that hot glue will be fine.
You know me too well. I had the shoe goo waiting in the wings.
Like i said before....you are brilliant !
I'm glad you enjoy the videos. Thanks
You can get lithium craftsman C3 batteries pretty much anywhere, legit or even 3rd party ones
Yes, very true. That is why I didn't convert that one. You can actually buy battery adapters for those as well.
Great video. I've made a few battery adapters myself and I think using a battery with an indicator light is the best way to know when to charge.
I actually have a video on installing a battery gauge on these. So you could put a battery gauge in the adapter and always know the state of the charge of whatever battery you put in.
@sixtyfiveford I've been down that road and the juice is not worth the squeeze. I'm not sure why we don't have access to the same low voltage protection circuits that the manufacturers use.
I got a porter cable that was like new with no charger or batteries. I epoxied a damaged handle base off a craftsman so I could run my batteries.
Awesome
Don't chop up old battery case--transfer the lithium pack into old case. Works particularly well with the Warrior lithium packs, as all charge management is done in battery circuit board (vs. managed by charger). Just drill a small hole for the charger plug to hit charge jack on Warrior pack, and another hole to see the charge LED. I peeled the "WARRIOR 20 VOLT LITHIUM" sticker off the new case and stuck it on the old case, as a reminder.
Nice!
Dude..... you are clever AF!
I bought a couple of adapters off fleaBay for my old 19.2V Crapsman tools to use my 20v dewalt batteries with for my employees to use instead of my dewalt tools.. That way there's less chance of them dropping and breaking my dewalts and I have a 15 or so 5ah or larger dewalt batteries and several fast chargers so we all have plenty no matter what we're working on that day...
Sodium-ion batteries are coming on the market and although they don't have as much power, they are basically immune to temperature, so that's something to keep in mind in hot areas of the world!
I just barely came across some random cells. Lithium-Sulfur Dioxide Battery (LiSO2) - D Size Spiral Cells in a medical device. Can't find much info on them
@@sixtyfiveford Oh those are odd. Just looked them up. Appears they are discharged at 1.8v, when charging they plateau around 2.1v until at around 80% they bump up suddenly to about 2.4v, then when they are done charging the go to 2.5v and up without adding much capacity. Seems there isn't much information on how much cycle life they handle yet either. That's really interesting.
@@RinoaL I got four of them in a pack for a medical device (size of a D cell). It says it's a 12-volt device. I'm assuming these things are 3 volts? Other than some people using it from military applications, I can't find anything on it. I'm assuming they're super safe/ and won't blow up in certain environments?? I don't know what to do with them.... Yet
Thats awsome i just dont have time to do all the steps
The Florida pool pump motor repair guy 32750 approved ! that was good info & see your Dog LOL
I just wanted to point out t you can run Porter cable batteries on the 20v black and Decker you just need to notch the other side where the notch is and it will fit but the black and Decker battery will fit as long as you notch it as well as trim the tool I done it
It's, that's true with the 20v Black and Decker and the 20v Porter Cable. But no other Porter Cable or Black Decker models.
In South Africa they sell loose Lithium cells and battery cases for these Lithium batteries. I bought battery cases and loose cells. You get chargers that charges single cells. I removed the old batterires, installed the battery boxes, and installed a hinge and a clip to keep it closed. Less effort and it work much better than your mod.
Here in the State's they are abundant as well.
Great job! The lack of low-voltage shutoff might be unique to the Warrior/HF batteries to save the whole $0.05 of PCB components in the battery. Most major battery brands have a BMS with a low voltage cutoff inside the battery, so it doesn't matter what device you attach to the battery, you can't overdischarge it. The only exception I have found to this is EGO, which doesn't apply in your use case. @thriftytoolshed might have a more informed opinion on this.
The only tool brands that put the low voltage cutoff in the battery itself are Ryobi and their sister company Rigid. They only do this because their batteries are back roads compatible to Old nicad tools. All other tools use the trigger switch in the tool itself, along with some mosfets to not turn on when the voltage is too low.
"Ginger, we''re stuck in the snow, could be here all night"..."Ok Dad, I'll help by catching all these snow flakes" 😄
Great re-purposing video. At home Im' still using a Makita NiMh 18V 6343D which is from the mid 2000's and still going strong. Remarkably you can still buy batteries for it and they are cheaper than ever, and I even found a new old stock one on eBay for £150 that I was tempted to buy, but it's good to know that when the day comes, i'll be able to convert it to Lithium using these videos for inspiration.
Makita made awesome stuff back in the day. They invented the cordless tool world.
I don't totally hate it....... but I've had the practice of replacing ye-olde Nicads with NIMH, and it worked out OK. I've soldered up batteries for these classic tools.
So basically you can build your own adapters but you need to sacrifice 1 tool from.your good set (Milwaukee,Dewalt etc) plus the useless batteries from your old tool set. I bought a Milwaukee adapter for an old porter cable set. A great use for the flashlights that typically come with the sets. Not gonna miss that.
You don't have to sacrifice a tool if it's a popular current brand(Dewalt, Makita, Milwaukee, etc) because you can buy a $15 adapter that fits the battery and cut it apart. So you would buy any, say DeWalt adapter( Dewalt to Makita, Dewalt to Milwuakee, etc) and essentially just permanently mount it into the old Nicad battery case.
You can still get those 19.2V batteries off of fleabay or the jungle but they're nimh and for 35-50ish bucks you can get 2 shipped to your door that will last several years... Or just do the Moe conversion and use 20v lion instead...
Those grey ones look like porter cable's
i made a m18 pack and shoved it inside an old drillmaster harbor frieght battery pack that was supposed to be 12v and it let the smoke out in about 30 seconds. so only old tools can take higher voltage?
Cool
How do you convert the Makita, that has the battery in the handle pistol grip?
How we supposed to do it in Alaska there's no harbor freight
There are adapters on ebay and Amazon that adapt the newer batteries to old systems and they work good.😊
Except there are only adapters for about 1/4 of the stuff out there.
used your idea found a masterforce drill and a ryoby saws all now its a ryobyforce saw
i still have working Dewalt 18 volt lithium batteries from 2008 the nickel cadmium are lucky to last 5
Those Dewalts are great tools. The biggest downfall was their batteries. But I guess that plagued every power tool of that era.
With a little bit of glue and some garage butchering I might be able to convert my old makita saw.
Use JB plastic weld instead of hot glue much stronger.
@ 00:37 omg, the Makita 7.2 volt.... I had one of those. It was really nice....
It was my first cordless tool.
@@sixtyfiveford Mine too Sir, mine too..... Not a cheap toy at the time.... People were envious.... Makita?? Cordless??? Do you have a solid gold toilet at home???
Looks like I will be going to HF for a cheap flashlight and battery :-)
Just got back from HF, the flashlight is surprisingly bad. I have lights that run on one AAA battery that are so much brighter. The switch isn't good, the light goes off before the switch clicks. And it comes with an entire book to say pull the trigger to turn it on lol. So I won't feel too bad cutting up a brand new light.
Caddy's and power ports are available for many brands that could save some cutting and adapting.. ALSO low-volt cut-out (anti-over discharge) circuits are available cheap and could fit inside that adaptor.. Frankensteining is always cool..
The low voltage protection circuits sold online will actually kill your battery if left on.
@@emort6 1) Always remove battery when not in use.. 2) Over dis-charge will permanently destroy a battery. Self discharge due to a static draw if a battery is left installed would require a recharge.. What's worse??
@twistedhillbilly6157 "Always remove battery when not in use.." is not an acceptable solution to me. On my builds I've elected to just not use the low voltage protection circuit because I just check battery level as I use the tool, no need to remove the battery when finished.
@@emort6 Sounds like you just like to argue.. You are one of those people who will be negative no matter what is said.. Good luck with that....
@twistedhillbilly6157 That's not entirely untrue but comments like yours in the past led me to believe that a low voltage protection circuit would protect my batteries, when in fact they don't, at least not the circuits available right now.
Very Nice to keep the old stuff chugging
Other alternatives:
Ive done a few just screwing on a 10$ dock (Mwaukee/Dewalt] cheaper than hacking an adapter.
Can also rebuild the existing pack with li ion using a proper amperage BMS so you get over/undervolt protection(Yes more tools and skills involved )
I had that same Crftman 19.2 set in the ginormous case. Still use some with the Dewalt adaptor. Run better than ever
For my Old Makita 9v i got a Milwaukee M12 battery. Cut it and flipped the cells to go in the 9v case like > = -
I kept the top intact sticking out the bottom, so i can just pop it in the M12 charger. Those old Makita 9v run real nice on 12v
The hardest part is finding a BMS that will actually do a low voltage cut off. All the bms's are for low drain devices. None of them can handle the 50-100 amps the tool might draw. At least nothing that I have found in a relatively cheap platform. Everything you find is around 1 amp. Maybe 5 amp draw. The over voltage charging BMS is no problem at all and cheap.
There are many types of generic 3s 5s BMS rated 20a to 100a. They top off at 4.2v/cell and cut out when one cell hits ~ 2.7v.
3-5$ on Ali
The easiest way is just to get an aftermarket Makita bms (the larger blue or green ones) they include over under volt and over discharge protection. And you can charge them with a 21v li ion charger thru the minus pin and middle pin
@@earl3358 But it doesn't provide low voltage cut off. It simply senses low voltage and tells the tool that it's under voltage. The tool itself won't allow the mosfets combined with the trigger to activate the motor. So it sends the triggering but not actually the function of low voltage cutoff.
I could be wrong. It seems every single Makita battery I've ever taken apart (a few dozen) The positive and negative always pass straight through to the tool.
@@sixtyfiveford I am talking about the generic rectangular BMS which you can get in differing amp rates. They have over/under voltage shut off. Most also provide balancing and thermal protection.
Yea the OEM Makita bms works with the tool. However the aftermarket Makita bms have all the necessary protection on the board as these are geared towards 'Makita battery platform' tools aka knockoffs which are just + - in and depend on the battery pack for protection
There is also the small square Makita knockoff BMS with barrel plug charging. These provide over/undervolt and thermistor protection but no balancing
Love this. I save all my old tools that die and harvest the heel for a battery mount to use with other projects. I did use an 18v on a 14.4v rotozip tool and it died after a bit of use. Any way to salvage it or is the motor toast?
That's random. The voltages are near identical. A 14.4 volt nicad system runs between 18v fully charged and 12v or less discharged. An 18v lithium is 20v-12.5v .
I would suspect just a bearing locked up. Unless of course it had the almighty smoke pouring out.
@@sixtyfiveford Hmm, that's good to know. I will have to take it apart and diagnose. It was running fine and then never started again. I guess it could even be the switch.
Cattle dog biting snowflakes; best part of the video... ok, you did well too. Thanks.
12V tools work just fine with the 18/20V lipos.
I would use the 12v lithium for 7.2-12v nicad/nimh.
14.4v and up I'd use 18/20v
👍👍
i bought a 3d printed adapter to use my milwaukee batteries on my dad's old craftsman 19.2v stuff and I guess there's no low voltage shutoff on this old stuff so I ran a few of the batteries down too low and the charger refused to recharge them. Brought one of them back by hooking it up in parallel to another fully charged battery and charged it up enough like that that the charger would take it again but I ruined a couple of chinese knockoff milwaukee batteries like that, so you gotta be real careful not to run them down too low
Adaptors for old drills can be bought for about $15.
And can only be found for about 1/4 of the stuff out there.
@@sixtyfiveford they make adaptors with just two wires coming out the back for all major lithium battery brands. Then you just wire it to the old drill. Ive done it several times. Your way is, to its credit, very much more inventive and mostly free.
You could have just used spade terminals and saved your money for the flashlight.