Drill battery rebuild - NiCd to Lithium
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- Опубликовано: 29 окт 2017
- Drill/ screwdriver battery rebuild (repair) to 18650 lithium ion batteries.
Parts:
Battery holder for 18650 size batteries - bit.ly/2Pl998O
3x Sony VTC4 18650 2100mAh 30A batteries
BMS to control charge/ discharge - bit.ly/2zMGWgB
Original charger can be used for charging.
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Converted old drill battery to lion 18650 elements. Decided to use battery holder for 3x 18650 elements to avoid spot welding of batteries. Added BMS to control charge/ discharge, so original charger cam be used for charging. Battery pack case was too small to fit battery holder with BMS, so front of case was cut off and then battery holder secured with electrical tape - not nicest solution but works well. 
Хобби
How many volts is it putting out b4 changing batteries
Thanks for sharing.
I don't get how the battery holder was wited up? and the batteries placed in with the positive and negative...
Sir. Do you have video guide. If the original charger is broken..?
I follow your other guide also in corldless drill to cord drill.
And now i found your guide again.
Thank you.and more power..
Where should I buy bms circuit?
I have the 24 volt Bosch cordless drill. Can you show us how to rebuild that one in a future video?
Thanks
I also have 24V Bosch cordless drill, but can't find any info on this. I tried to do it following the videos on 14,4V or 18V batteries, but I ended up in smoke. Can someone explain the Bosch battery connections please? Apart from + and - there is a T terminal and C terminal. How should they be connected please?
I would try but not working what's the cause of not working??
What is the actual voltage of the original charger? I have seen replacement chargers sold with following specifications: 7.2V/GSR9.6/12V/14.4V.
Nice work..How thick are the wires to withstand the 30A? I read that suitable are 2.5mm, but I think yours are more thinner
don't remember exact thickness - they were same thickness as wires going to motor
Hello! I did everything just like you with the same batterys, but for some reason on 12.04 volt my drill dosen't spin up only if I help it with my hand. What could be the problem:?
battery issue, u need a high drain 18650, 30A is gd enough
then u should go for bms with operating current at least 25A
Dude, I used 18650 Battery for the same drill. 18650 can be placed in the original battery box. 2 horizontal 1 vertical. Do not cut the battery pack. Use smaller size bms.
Turkish translation
(Dostum, aynı matkap için 18650 Batarya kullandım. 18650 orijinal pil kutusuna yerleştirilebilir. 2 yatay 1 dikey.
Pil takımını kesmeyin.
Daha küçük boyutlu bms kullanın.)
The batteries the dude is using are 18650s but only 3 even though he cuts the box. Thanks. What circuit board do you use?
Zgadzam się, naprawiłem kilka takich baterii. Ogniwa i BMS mieszczą się w oryginalnej obudowie. Trzeba tylko chcieć i wykazać się odrobiną inwencji.
I wish someone would sell a battery pack like this.
Hi! How thick wire did you use? 14AWG would be enough?
I used 1,2mm wire, so 14AWG should be ok
Hi!
I have same drill, and i do battery change like you except one thing.
I held the original wiring on the connecting clips and a resistor on the head.
It's working good, but if i pull fast the trigger completely, it doesnt start, but if i pull slowly, and i wait to chuck start rotating slowly, then i pull the trigger completely, it works.
Do you have any idea how can i solve this problem?
P.S. : My english isn't perfect, but i hope you will understood my problem
Do you use same bms? What is max amps of your batteries?
handmade yes, i use a same bms, or looks like its same than on the video, and 3pcs Sony Vtc5 30A battery.
hi can I use 3 lithium ion battery for 12 V drill ? By the way I have exactly the same bms and battery holder !
+brave edy it should work if batteries have enough amps. As you have everything already, just put it together and try.
p.s. But I probably would used 4 batteries for 12v drill.
handmade great but can I use same charger from the drill itself ? Is it safe ?
+brave edy yes, it works for me. But I did not left charging without supervision, at least some first times.
handmade OK thank you for your answer .
Good work.
Isn't it harmfull for lithium cells to charge them by original ni-cd charger ?
Not if you use a BMS board to control the charge/recharge cycles as the video shows. The original charger only supplies voltage to the board.
@@ortlu-ro9yn it is said that makes the battery life shorter. There some videos transform ni-cd to lithium charger. BMS' are not charger, just protecter.
Is it okay to use the old original charger with the new li-ions?
Yes, it is ok to use original charger if BMS for battery is used - it controls charge/ discharge.
@@garage1168 thx Mate :) great work!
I want to transfer my own drill but my charger is broken...
very simple and compact..
Hi, i did the same thing but not charging, keep blinking after 10 hours, where is the problem ?
Hard to say. Everything connected correctly/ correct battery polarities?
handmade yes in the output I have 11.59 volts
What happens if you use 5A load laptop batteries ??
Screwdriver will not have enough power - will be usable only for light applications.
@@garage1168 so it will only be weak not explode or something ??
@@MrStyle-sr1yv Yup
Diy tips and tricks. You don’t haf to cut case.
18650 batteries are too exposed. You should use a better protective case
man your hands shake anormalny take care of it, you could have serious health problems in future its a mark. Sorry for my English, its bad :(
Зарядкой для NiCd нельзя заряжать литий!
Поэтому он припаял доп.микросхему
😂😂😂😂😂
Please,, be careful, the board doesn't support those devices. They stated it in the shop "NOTE:
1) This board is not suit high power electronic tools, if use for screwdrier and drill,electric bike series make,fishing machine and 1W LED, please don't buy this."
When I was buying that bms, there were not such note. Battery still works.
It's a nice idea but it's not practical or safe because:
- Laptop batteries typically have a max current or 2 amps - not suitable for power tools.
- You have no cell balancing scheme, which makes it unsafe.
- The high-current batteries which would be OK will cost you far more than a replacement drill.
Yes, laptop batteries are not siutable for power toots, thats why I use sony vtc4 batteries (30A Max, 60A pulse). As bms is used, it controls charge/ discharge. Total cost was around 15EUR.
Apologies. I don't know how I overlooked that. I was moving back anbd forth between drill conversion videos and got confused.
hhh
I have Hitachi drill machine
Me too.
why didnt you just show directly the finished product so we could not understand any sh.t much better !!
No value at all. If you can't tell us what you're doing then forget the confusing video all together!!