As an aside, I bought a recharger by some reputable company a few years ago, and I've given up on it because companies change their input socket so often, the charger company can't keep up. I would suggest that you get a recharging system that outputs 110VAC so you can plug your wallwart rechargers into it instead of having to buy new adapters every time you change, upgrade, or get new stuff.

I've got a gel cell battery with built-in inverter to 110VAC with a solar panel plus a few cigar lighter inverters that have 110VAC outlets, so I figure I'm set.