I (very occasionally) drive our Honda hybrid.
It gets very little use (9,000km in 5 years!) and is often unused for weeks at a time.
Not surprisingly, the starter battery often goes flat (5 AA flat battery call-outs in the last year, despite a new heavy-duty battery).
I don't blame the car - it isn't being used normally.
A PowerAll would be ideal, instead of bothering the AA.