Ryobi Battery- 18v-wont charge and 4 flashing lights test button- how to reset the battery (BMS) 

Such great advice! It is alive! I accidentally water it with sea water, there was no power outlet or recharge either. Thx for help!!!🎉🎉🎉

Awesome, totally worked for me after getting the voltage with another battery as many videos show.

This fixed my battery issue! Thanks

This video is gold! Thank you so much for putting this together. This video answered so many questions I had about building a computer.

Worked perfectly. Thanks!

It’s helpful! Thank you so much! Mine was blinking all four, after connecting jumper between j1 terminals and pressing test button in same time it started getting charge. 😊

This is why youtube is great. DIY'ers helping each other out. TY

Worked good, thanks 😁

Worked like a charm. You're the best, thank you!!!

You legend worked perfectly… my battery got wet and started flashing 4 lights but this fixed it now back and working

When resetting, I get the four green lights going off in sequence (running). Getting 16 volts at post. Remove lights remain and stiil have 16 volts. Push test button , light 1 flasshes then stops and volts go back to 0.05. Any ideas?

Hi, wanted to know if you jumped the two small holes to reset bms. It was hard for me to tell on the video? Thanks for any info.

I have mine where the four lights are at low voltage but solid unable to reset

I have the same battery , with the same problem, followed your instruction, but still have 4 blinking green lights. any idea?

Mine is doing the same thing. Haven't tried this method yet but I will report back

Only stupid people record videos in Portrait. Smart people video in Landscape which means you turn the phone camera horizontally NOT VIRTUALLY...