I recently got my hands on a 12.0 Ah high-output battery, but I'm having some serious issues with charging it. Whenever I connect it to the charger, it just flashes red and green. If I take it off the charger and hit the button, it quickly shows one bar before completely shutting down. This cycle repeats, but I can't find any info on others experiencing the same situation. Could this be a problem with the battery board or the cells themselves? I'd really appreciate any help!
4 Answers
Definitely test the individual cells. If any are bad, they're relatively inexpensive to replace. Plus, this could be the reason to finally grab that M12 soldering iron for some soldering fun!
I actually opened up my battery and connected it to a separate 18650 charger. If you’re willing to try that, just make sure you get the right security bits to take it apart. You could check the charge on each cell and hopefully recharge them. If that doesn’t work, consider swapping out the PCB too!
That’s a solid idea! I’m considering it myself but need those security bits first. Hopefully, that'll help me pin down the issue.
This happened to me too! I found that when my battery was completely drained, it wouldn't charge properly. Have you thought about trying to jump-start it? Also, double-check whether it's under warranty.
Unfortunately, it's out of warranty now. A friend tried to jump it with a 3.0 battery, but it didn't seem to work. I’m thinking about using my 9.0 battery to see if that helps. How exactly do you jump-start it? Did it work for you?
You might want to get a spot welder. Having one can really help if you need to replace any cells!
Thanks for the suggestion! I might really need to get one.
Does a soldering iron work well, or is a spot welder the better option for this job?