Solar panel

I cant see any reason it wont work for him, same system used on many motorhome battery's

 

Personally I would be taking the battery home. This way the battery could be permanently connected to a battery conditioner/optimiser and would be shielded from the effects of a cold winter.

After all, how long does it take to re-install a battery?

 

Theres an alarm fitted which wont be much use if the battery is removed every time its left in the garage.

 

I had one till a bad winter battery failed to charge on optimate now