Questionable cell selection. NCR18650PF is not for a high-current application, max discharge current is 10A, which will accelerate the degradation. Also, maximum voltage for these cells is 4.2 V, some of yours showed 4.34 V, which is too much. Cells voltage should be much closer before assembling the battery, with difference within ±0.1 V
@@georgeemanson Something you're able to source and willing to pay for. For example, Sony/Murata VTC5, VTC5A, VTC6. Bigger capacity can cost significantly more, so you should decide what are your needs. Similar cells are available from Samsung, LG and other manufacturers. High-current cells have Continuous discharge current in the range of 20-25-35 Amps, so you should look for numbers like that in datasheets for particular cells.
The originals.. You cant build a better battery for less money than the originals.. Dewalt ect get the highest quality cells at prices nobody else will because they buy them in massive bulk quantities.. A genuine 30a discharge rated cell as used in the originals is about 7 dollars or more.. So youve already spent the same or more money on a battery that is using a god knows what cicuit board and case.. No point in trying to buy budget cells to beat the price on an original.. You will be severly dissapointed in its performance..@@georgeemanson
Exactly you are right dear. It seems to be a difficult but it's easy DIY... I know spot welding machine is the only solution for this work!... but I try to save money even more by excluding spot welding machine.... battery DIY kit cost = $12.5 rechargeable cells cost = $5 Total cost as you see here = $17.5
Im working on a 3d print for my bauer tools..With minimal skills I have the battery attachment reasonably accurate. We really need open source, universal battery packs.
Didn't realize that this kit was available. I purchased one to rebuild a battery for my old 18v ni-cad tools. I plan on giving it away as I already replaced them all. I already have lots of cells and a spot welder.
I made my 8ah battery the same way but I put it on my dewalt charger and it won’t charge. It has no problem working and operating my tools but won’t charge
It wont charge because these are not built the same as the originals this is a very cheap circuit board not the same as the original. The origial charger isnt seeing all the pins or it might be missing the temperture thermistor which the originals have.. If the charger doesnt detect it then it doesnt know the status of the pack and wont start.. In my experience it is absolutely not worth it to make your own batteries.. To buy genuine high quality sony/samsung/lg cells you will pay anothing from 7 dollars up.. Thats 70 dollars right there as you need 10 of them.. This crappy imitation kit is about 25 dollars or more.. Thats 90 odd dollars.. You can buy an original brand new dewalt battery 5ah for less than that... Tool manufacturers buy there cells in such large quantities that they are getting them for probably under 3-4 dollars each.. You or I wont get that.. So no point in trying.. Definately no point in buying a knockoff kit and using shit batteries.. You will have spent 40, 50 dollars for a battery that will either not work/ last 10 minutes on a tool or worse set fire to your charger or house...
I'm looking around on Facebook marketplace for old batteries. I don't know if the circuitry that makes the battery pair with the charger/tool is proprietary or not, but no sense in chancing it on cheap knock-off circuitry when there are so many authentic used batteries out there.
Questionable cell selection. NCR18650PF is not for a high-current application, max discharge current is 10A, which will accelerate the degradation.
Also, maximum voltage for these cells is 4.2 V, some of yours showed 4.34 V, which is too much. Cells voltage should be much closer before assembling the battery, with difference within ±0.1 V
What would you recommend as being the best battery?
@@georgeemanson Something you're able to source and willing to pay for. For example, Sony/Murata VTC5, VTC5A, VTC6. Bigger capacity can cost significantly more, so you should decide what are your needs. Similar cells are available from Samsung, LG and other manufacturers.
High-current cells have Continuous discharge current in the range of 20-25-35 Amps, so you should look for numbers like that in datasheets for particular cells.
The originals.. You cant build a better battery for less money than the originals.. Dewalt ect get the highest quality cells at prices nobody else will because they buy them in massive bulk quantities.. A genuine 30a discharge rated cell as used in the originals is about 7 dollars or more.. So youve already spent the same or more money on a battery that is using a god knows what cicuit board and case.. No point in trying to buy budget cells to beat the price on an original.. You will be severly dissapointed in its performance..@@georgeemanson
How many Ah are the batteries?
Didn’t realize this was possible. Awesome! Estimated cost savings?
Exactly you are right dear. It seems to be a difficult but it's easy DIY... I know spot welding machine is the only solution for this work!... but I try to save money even more by excluding spot welding machine....
battery DIY kit cost = $12.5
rechargeable cells cost = $5
Total cost as you see here = $17.5
Wow! Dewalt is ripping us off! Thanks for the info!
Im working on a 3d print for my bauer tools..With minimal skills I have the battery attachment reasonably accurate. We really need open source, universal battery packs.
Great video
Thank you so much @Brohi shah
Didn't realize that this kit was available. I purchased one to rebuild a battery for my old 18v ni-cad tools. I plan on giving it away as I already replaced them all. I already have lots of cells and a spot welder.
I made my 8ah battery the same way but I put it on my dewalt charger and it won’t charge. It has no problem working and operating my tools but won’t charge
It wont charge because these are not built the same as the originals this is a very cheap circuit board not the same as the original. The origial charger isnt seeing all the pins or it might be missing the temperture thermistor which the originals have.. If the charger doesnt detect it then it doesnt know the status of the pack and wont start.. In my experience it is absolutely not worth it to make your own batteries.. To buy genuine high quality sony/samsung/lg cells you will pay anothing from 7 dollars up.. Thats 70 dollars right there as you need 10 of them.. This crappy imitation kit is about 25 dollars or more.. Thats 90 odd dollars.. You can buy an original brand new dewalt battery 5ah for less than that... Tool manufacturers buy there cells in such large quantities that they are getting them for probably under 3-4 dollars each.. You or I wont get that.. So no point in trying.. Definately no point in buying a knockoff kit and using shit batteries.. You will have spent 40, 50 dollars for a battery that will either not work/ last 10 minutes on a tool or worse set fire to your charger or house...
I'm looking around on Facebook marketplace for old batteries. I don't know if the circuitry that makes the battery pair with the charger/tool is proprietary or not, but no sense in chancing it on cheap knock-off circuitry when there are so many authentic used batteries out there.
Nice
Thank you so much @drawing with maaz You also doing great work on your channel Drawing with Maaz :) kept up dear
Is there a special charger needed?