☀️ USB MULTI-FUNCTION + HIGH CONVERSION – This solar panel kit includes a USB output to charge phones and tablets – a feature most maintainers lack. Grade A+ monocrystalline cells deliver 25%-30% efficiency for fast 12V battery charging. Compatible with LiFePO₄, AGM, SLA, GEL, Lithium – keeps trailers, boats, RVs, cars, trucks and tractors charged
🔄 UP TO 30% BETTER IN LOW LIGHT – Traditional grid lines reflect sunlight and block up to 12% of cell area. Our gridless black design eliminates this loss. Anti-reflective glass traps scattered light – so this solar trickle charger works at dawn, dusk, cloudy, and under shade where others fail. 25%-32% higher efficiency. Less sun? No problem
🛡️ -46°F TO 158°F WEATHERPROOF – Rain, snow, or scorching sun – aluminum frame and tempered glass withstand it all. Gridless surface means no metal lines to peel under UV. Traditional panels degrade in 3–5 years; ours delivers peak output for 25+ years. A reliable 12v solar battery charger that outlasts the rest
🔋 SMART MPPT CHARGING – 3-stage (bulk/absorption/float) automatically prevents overcharge and deep discharge, extending battery life. Compared to PWM controllers, it boosts energy utilization by 25%-30%. Ideal as a solar battery charger for trailer or any 12V vehicle
⚡ PLUG-AND-PLAY INSTALL – Mounts on curved or flat surfaces like roofs or decks. 360° adjustable bracket angles toward sun for maximum gain. Pre-drilled holes, plug-and-play wiring, and LED status lights make setup a breeze. This MPPT solar battery tender 12v automotive kit auto-stops when full, auto-resumes when low
Specification:
Material Monocrystalline Silicon
Solar Panel Size: 35 x 29 x 4cm
Solar Panel Power: 25W Solar Controller: MPPT
USB-A：5V 2A
Efficiency 32% Conversion Efficiency Max
Operating temerature:-10degree~70degree
Package:
1*solar panel with screws 1*solar controller 1*alligator clip battery cable 1*O-ring clip battery cable 1*USB charger cable 1* user manual