I've come-up with an even MORE ingenious solution - a 200w peak /100w cont. inverter from Wal-Mart ($17.98 - automotive dpt.) that's the size of your fist.
Couple that with a fused "Cigarette-lighter extension cord" ($6.98) with the male end cut-off it, and a couple of misc. connectors (FREE - 'cuz I had 'em already); and you got yerself a handy-dandy 120v AC outlet you can charge phones, laptops, other batteries (with their own 120v charger), run lights, small appliances, etc..........
I never leave home without it now.
Couple that with a fused "Cigarette-lighter extension cord" ($6.98) with the male end cut-off it, and a couple of misc. connectors (FREE - 'cuz I had 'em already); and you got yerself a handy-dandy 120v AC outlet you can charge phones, laptops, other batteries (with their own 120v charger), run lights, small appliances, etc..........
I never leave home without it now.