Solar Battery Charger Maintainer 50W 12V, MPPT, IP65

12V solar battery charger maintainer keeps your vehicle battery topped up with efficient 50W monocrystalline charging, helping prevent dead batteries during storage. Designed for flat placement on rooftops, yards, and flat-roof vehicles, it uses high-transparency tempered glass for strong light transmission and an external MPPT controller to optimize power and manage charging automatically across common 12V battery types.

• Delivers 50W charging via monocrystalline silicon cells for faster trickle charging and steady maintenance


• Protects with external MPPT smart controller and 6-stage protection to reduce overcharge and over-discharge


• Fits multiple 12V batteries: LiFePO4, Li-ion, AGM, Gel, SLA, EFB for broad vehicle and equipment use


• Includes 122 in extension cord plus 43.3 in alligator clips and 43.3 in O-ring terminals for quick hookups


• Withstands weather with IP65 rating and −40°F to 185°F operation for outdoor installs (bracket not included)

Use this solar trickle charger to maintain batteries in cars, boats, RVs, trailers, motorcycles, lawn mowers, gate openers, sheds, pumps, and more—especially when parked for weeks at a time. The MPPT controller monitors battery status, pauses when full, and resumes when voltage drops to help preserve battery health without constant attention. Place it flat in a sunny spot, secure it firmly for wind exposure, connect the included leads, and let it maintain charge day after day. Grab yours today and keep your 12V systems ready to start.

• Compatible battery voltage: 12V


• Maximum power: 50W


• Max power voltage: 20V


• Solar cell: Monocrystalline silicon


• Controller type: External MPPT controller


• Waterproof rating: IP65


• Surface material: High-transparency tempered glass


• Operating temperature: −40°F to 185°F


• Solar panel dimensions: 23 x 29.5 x 0.98 in (585 x 495 x 25 mm)


• Net weight: 6.39 lb (2.9 kg)


• Cable lengths: 122 in extension; 43.3 in alligator clips; 43.3 in O-ring terminals


• Mounting: Bracket not included