20W 12V Solar Battery Trickle Charger With MPPT, IP65

12V solar battery trickle charger maintainer keeps your vehicle and equipment batteries topped up with hands-free charging, helping prevent dead-start downtime in storage. This 20W monocrystalline panel uses a built-in MPPT controller to boost charging efficiency while adding key protections for safer long-term maintenance. Designed for outdoor mounting on roofs, walls, decks, or the ground, it’s a practical solar battery charger for cars, boats, RVs, trailers, and off-grid sheds.

• Delivers efficient 20W charging with monocrystalline cells and high-transparency tempered glass for strong conversion in sunlight


• Protects batteries via built-in MPPT controller with over/under-voltage, overcurrent, short-circuit, overcharge, over-discharge, and overheat protection


• Fits common 12V battery types including LiFePO4, lithium-ion, AGM, Gel, SLA, and EFB


• Installs securely using a 0°–60° adjustable bracket, pre-drilled holes, and M6 screws for long-term outdoor mounting


• Handles harsh weather with IP65 waterproofing and an operating range from −40°F to 185°F

Keep seasonal and standby batteries ready without constant plug-in charging. This solar maintainer is built for wide-use setups—car roofs, boat decks, RV exteriors, trailer frames, gate openers, electric fences, lawn equipment, and remote tool sheds—where reliable, low-maintenance power matters. With included extension lead and alligator clips, connection is quick, while the adjustable mount helps aim for better sun exposure. Grab yours today and set up a solar charging routine that supports long storage intervals.

• Compatible battery voltage: 12V


• Maximum power: 20W


• Solar cell: Monocrystalline silicon


• Controller type: Built-in MPPT controller


• Waterproof rating: IP65


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


• Panel dimensions: 15.4 × 13 × 12.6 in (391 × 330 × 320 mm)


• Surface material: High-transparency tempered glass


• Net weight: 4.14 lb (1.88 kg)


• Included cables: 122 in extension cord; 43.3 in alligator clips


• Color: White