Rechargeable, Extra-Capacity 17 Amp-Hour Power — With Important Safety "Extras"
The only thing this feature-packed field battery doesn't do is toast! It's a portable 17 amp-hour, DC power supply with two 12V "cigarette lighter" output ports (10 amps max.), plus 3V, 6V, and 9V male pin jack outputs. It's fully rechargeable, and 110V AC and 12V DC charging adapters are included. An indicator light tells you when the battery needs recharging.

The Dynamo Pro 17 has other features that make it indispensable not only for observing sessions but also around the house and in vehicles for emergency situations.

How did we ever manage without the Dynamo Pro 17? It'll keep you powered up as well as prepared for any emergency, at home or on the road.
Weighs 19 lbs., 12 oz.