VSLA? A123? Cycling chargers?? *I think this subject should have it's
own thread. *Unlike transponders, we almost all need them.

Powersonic 12Ah batt with a Battery Tender Junior charger, the 750mA
'wallwort' mini version version but still an auto 3-mode like bigger
ones. $40, very compact and works like a champ. I just put it on the
charger when it's thirsty.

-Paul