Makita 18V Battery Replacement Board

Рет қаралды 33,888

4 жыл бұрын

In this video we take a look inside a Makita (BL1815) 18V Pack. This is the first Makita pack I have had to repair so even though it was not really economical for repair, my goal was to learn and do what ever it takes to get this one working again. Even after all cells were replaced we still had a bad protection board, but ended up using a cheaper version of the board that seemed to work just fine! So far it has worked well, but if any issues should arise, I will update here. Hope you find it helpful and Thanks for Watching!
Link to Makita Battery Board if needed:
amzn.to/3MPeMZt
amzn.to/3MM8b1T
Amazon Affiliate links to some of my favorite Tools/Items if interested:
Any links you click on helps support the Channel and I greatly appreciate it!
DeWalt Cordless Gyroscopic Screwdriver if needed: amzn.to/3Eevk8f
TOMLOV DM202 MAX Microscope if needed: amzn.to/3Uy0RIF
Cheap Spot Welder Board if needed: amzn.to/3WcRwWA
200MHZ Rigol DS1202Z-E scope if needed: amzn.to/35UVTLI
Weller 200W Iron if needed: amzn.to/30nzhT2
Hakko 888D Iron if needed: amzn.to/36TDWyv
Conical Bent Hakko Tip if needed: amzn.to/3B57IjD
ProStormer Hot Air Station if needed: amzn.to/3XIiKEY
Desoldering Gun if Needed: amzn.to/2SOTVIM
Extra Long Security bits if needed: amzn.to/3KVQNGQ
0-60V 0-5A Power Supply if needed: amzn.to/4158YzL
Similar to Drok DC-DC Converter if needed: amzn.to/3eUJZYk
Jewelers Screwdriver set if needed: amzn.to/3THDqwd
OFLA Locking Blade knife if needed: amzn.to/3BxMbSO
Pair of 3S 5.2Ah 60C LiPo batteries with XT-60 Connectors if needed: amzn.to/3UAl40e
GM328 if needed: amzn.to/30rBFrJ
amzn.to/3o6TlZC
WD-40 Contact Cleaner (Plastic Safe): amzn.to/2Yjo6e5
FlirOne USB C if needed: amzn.to/36VX1jn
Rigol DS1102E Scope if needed: amzn.to/35UVLvI
Atlas ESR-70 if needed: amzn.to/2QR1z4W
Atlas DCA55 if needed: amzn.to/2RhrcuP
MESR-100 if needed: amzn.to/2Rkcfbd
150W Load Tester if needed: amzn.to/30i8sn8
M12 Cordless Soldering Iron if needed: amzn.to/35XiFCp
Board Holder if needed: amzn.to/3881akA
Flexible hose arms for helping hands if needed: amzn.to/3KSH6c7
Northridge Fix Affiliate Links. Any purchase you make with below links helps support the channel. Thanks for your support!
NF AMTECH NC-559-V2 Flux 10mL if needed:
northridgefix.com/product/amt...
NF Low Melt Solder PK of 6 sticks if needed:
northridgefix.com/product/low...
NF Premium Desolder Braid Wick if needed:
northridgefix.com/product/pre...
NF Dual Head ESD Safe Hard Cleaning Brush if needed:
northridgefix.com/product/dua...
NF Mechanic Tweezers if needed:
northridgefix.com/product/mec...
northridgefix.com/product/mec...
Solder wire 100g 60/40 if needed:
northridgefix.com/product/bes...
NF.Mini Soldering Pen if needed:
northridgefix.com/product/por...
NF V2.3 Microscope if needed:
northridgefix.com/product/mic...
NF.Short Voltage Injection tool if needed:
northridgefix.com/product/pow...
NF Universal Board Holder if needed:
northridgefix.com/product/uni...
NF Adjustable Clamp Arm Stand for camera if needed:
northridgefix.com/product/adj...
NF HEPA Fume Extractor smoke absorber if needed:
northridgefix.com/product/hep...
NF Atten ST-862D Hot Air Station if needed:
northridgefix.com/product/att...
NF Grinding Pen with 7 tips if needed:
northridgefix.com/product/gri...
UNI-T UTI260B Thermal Camera if needed:
northridgefix.com/product/uni...

Пікірлер: 25

@joesoika2628 3 жыл бұрын

Good video leaned something today! Thanks

@jimlee5626 3 жыл бұрын

Great information. Tearing into mine soon. Thanks!!!

@marshall7201 3 жыл бұрын

Good video! I have 3 batteries that are reading good voltage but won't charge. I have not opened them up yet.

@julianhoyland 3 жыл бұрын

Great video! What voltage does the new PCB cut the power at please? I'd like to fix my battery but am worried about damaging the cells with a cheap board.

@vje24 2 жыл бұрын

Hi,great video 👍 the pack will after few charging degrade,and fuse inside 18650 will blow ,better use controller with balance charging,that with BMC in name....keep up with good videos...

@ronaldwoofer5024 2 жыл бұрын

do these boards have internal diode to allow 2 packs to be connected in series 36v ?

@ThriftyToolShed 2 жыл бұрын

No diode that I remember. They could be in series for 36-40V. Just have to monitor the voltage as to not allow them to drop below cut off voltage with a Low voltage cut out board or some other monitor so as not to over discharge. I have a video of a couple of low cut out boards that are fairly cheap and work pretty well.

@MichelleWardley 11 ай бұрын

What was the fluid you used. To undo the screw before chopping the wire

@ThriftyToolShed 11 ай бұрын

Are you asking about the Rosin Flux?

@MichelleWardley 11 ай бұрын

@@ThriftyToolShed was it in a thin white 🍼

@leonvanengelen1824 2 жыл бұрын

got some good experience with the chinese boards. they are really cheap and the ones i use do actually balance charge. BUT! i like the makita boards better and would kill to learn a way for un-bricking them (have a bl1840 that is fused at 90a, so should really deliver the beans!!!). i think there should be a way of resetting the micro controller or something that would make mine work again. they are usually in a real good shape because they are sealed and not exposed to oils and other liquids, but useless as they are. if anyone has any ideas on wich leg of the microcontroller you need to connect to what that would make my week atleast.

@leonvanengelen1824 2 жыл бұрын

and by the way, if i may suggest. makita usually uses the sony murata vtc series cells, and where i live you can get those for about 2 dollar a pop for a vtc4a, wich is one of the highest drain cells. not only on the short 30a, but also sustained periods. they are aparently salvaged out of new packs with spot welding defects, so never used. some of the tools makita produces are almost a dead short and i would recommend using a capable cell to keep it alive for many charges to come

@ThriftyToolShed 2 жыл бұрын

Yes, the Makita board is better for sure when working. Several manufacturers do this including Dyson. I have pack repair videos that show some packs with a microcontroller reset, but this need more than a reset it seems. These may need to be reprogrammed?

@leonvanengelen1824 2 жыл бұрын

@@ThriftyToolShed im not sure. i dont know enough about micro controllers. these battery's keep track of lots of things, like the amount of charge cycles and the percentage of its life it has been overloaded(whatever thay may be exactly). mine has two mc on board, and thats even one without the indicator lights. i am afraid you might be right that it would need reprogramming, but thanks for your time and thoughts

@GridRewired Жыл бұрын

Thanks for this comment. I came here looking for an answer to why my rebuilt pack can be charged by a non Makita charger and show a full 20V and light up all the lights on the tools but not deliver any power. I could only guess the board was causing this issue. This quick thread confirms that the board must have to be changed in order to get the pack working again.

@user-eh7wd1qm5r 2 жыл бұрын

基盤が昔のものですね

@TauCu 2 жыл бұрын

jesus christ. how come name brand companies can't seem to figure out how to implement cell balancing on their products. perhaps so you go through batteries quickly.

@leonvanengelen1824 2 жыл бұрын

fortunately most makita do have cell balancing. even their charger is a balance charger. if you look into the track the batteries slide on, the positive is not even present. the bigger packs usually have balancing. the unbalanced packs also seem to last longer than i would expect. got one from a friend in february this year and it has worked for years and years. as expected the voltage on those cells were everywhere, and it ultimately failed bc of a 0v cell(protection cap popped)

@A6D6E6 3 жыл бұрын

Very good video (and showing charging after recelling). I usually turn people away if they have Makita drill packs (known for bricking the PCB's). Now I see that other boards are available , maybe that will change. Thanks for sharing.