powoxi-9w-solar-battery-trickle-charger-maintainer -12v portable waterproof solar panel trickle charging kit for car, motorcycle, boat, marine, rv, trailer, powersports, snowmobile, etc. solar powered battery chargers 9w is up for auction in Automotive. The current bid is $2.00, 96% below the $49.99 MSRP, in New/Like New condition. Bid on this item at our Georgetown - Triport Road location before the auction closes.