Keep your 12V batteries healthy and ready to go with the Rhorawill 8W Solar Battery Charger & Maintainer. This compact, waterproof solar panel delivers a steady trickle charge that compensates for self-discharge, so your car, boat, RV, motorcycle, or tractor starts instantly—even after weeks of inactivity. Whether you're storing a vehicle for the season or simply want to extend battery life, this solar maintainer is a reliable, eco-friendly solution.
Engineered with upgraded MPPT smart charging technology, this solar charger achieves up to 27% conversion efficiency and adapts to a wide range of 12V batteries, including flooded, gel, AGM, SLA, lithium, and LiFePO4 types. The durable, weatherproof construction ensures years of dependable outdoor performance in temperatures from -35°F to 161°F.
Perfect for maintaining batteries on seasonal vehicles, weekend toys, or equipment in storage. Simply place the solar panel in direct sunlight and connect it to your battery using the included SAE cable or cigarette lighter adapter. The intelligent three-stage charging system ensures your battery stays topped up without overcharging, making it ideal for long-term maintenance.