Heya /hamradio/
So I fucked up. I blew out the charging base of my ((Baofeng(Please see sticky for more information on this radio))(Please see sticky for more information on this radio)) HAM radio with 12 volts, when it needed 10 volts.
I already bought a new one a while back, but I'm wondering if I could fix the old one with a new lithium charging board.
The battery pack is 8.4v, so I went to eBay and searched for a 2 series lithium charging board. All I could find however are these boards that have a balancing pad that goes between the 2 cells. The battery nor the base have a 3rd terminal, so it's just a postive and a negative going in.
Could I still use that board to safely charge the battery? It also doesn't have an indicator light when it's full so that's also something I'm worrying about. ( I could just calculate the approximate charging time but I'm not too fond of that method)
My new charger base also stops charging when it's 8.2 volts instead of 8.4, which pisses me off a bit since I'm not getting a 100% charge. Could I fix this as well? I don't want to buy a new one *again* just because this one is kinda DOA. I still use it though, and I should have noticed it earlier and disputed it with the seller back then. Don't want to do a paypal claim because I think that's a bit unethical.
Pic related of the charging board and info. What would be the correct input voltage for that board?