Protection circuit for my Magicshine battery pack.

[Jaba]

Hi I'm new to this forum, and looking for some help.

I've been enjoying my two Magicshine bike lights this fall, but now one of the batteries has stopped working. It won't take charge or give any juice out. After some troubleshooting it's clear that the protection circuit on the battery is toast.

Could anyone please point me to a correct PC for this battery pack? I've found some at batteryjunction and batteryspace, but I don't know which one to get.

Thanks!

 

[Jaba]

Ok, some additional info that might help. The battery pack exist of four 18650 cells 2S2P. I'm not sure of mah, but I guess it's about 2500 mah per battery.

How about this PCB, will it do the job?
http://www.batteryspace.com/pcbfor74vli-ionbatterypack5a-1alimit.aspx

I'm really new to all this, but I'm a fast learner. The only thing I don't understand with the different PCBs are the A limit. How does it work?

 

[Jaba]

Sorry, double post.