You can also check Schumacher SP-400 4.8W Solar Battery Charger / Maintainer and Battery Extender 12-Volt, 80 Amp Engine Start, 20 Amp Charger/Maintainer for a better comparison at Batterymaintainers.us.

Schumacher Solar Charger and Maintainer Product Features 12V lead-acid extends and for boats, cars, snowmobiles, RVs friendly and works in cloudy conditions Contents: Schumacher (1) 12V (1) clamp adaptor (4) mounting owners manual SPC-7A Charge is recommended separately) for Not compatible with the WM-12 or connect Brand: Model: Item Product Dimensions: 14.4 x 13.6 x 0.5 inches California Click for Proposition 65 Item number: Folding: 12 volts Weight: pounds First September 13, buy Seller, Feedback Quick Shipping and Tracking Discounts Excellent The Shipping Returns Not happy? problem! Day Policy Items Ship within.
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