I purchased some batteries and they came w/ two plugs. I tried to charge the battery using the standard plug and got an error on my charger. I used the adapter w/ my charger to plug into the smaller red plug and it charged up fine. My question is whether it can be re-wired to charge and power my lights through the same plug? I bought one of these as a replacement for a buddy who does not have a smart charger. I would prefer not to have to make an adapter for him. Attached pics. TIA.