SUNER POWER Waterproof 12W 12V Solar Battery Charger & Maintainer Pro, Built-in UltraSmart MPPT Charge Controller, 12 Volt Solar Panel Trickle Charging Kits for Car Automotive Boat Marine RV Trailer

Ultra-Smart MPPT TechnologyThis 12v solar panel battery charger is crafted with SUNER POWER' s unique Ultra-Smart MPPT ( Max Power Point Tracking) technology, the innovative MPPT allows to deliver high tracking efficiency of up to 99% and peak conversion efficiency of 98%, improving approximately 20%-30% utilization rate than other competitors
Improved 3-stages ChargingThe improved 3-Stages charging algorithm (Bulk, Absorption, Float) allows to charge 12-volt battery more effectively, ensures battery is safely recharged and increases battery life and performance
Free MaintenanceThe solar trickle charger stops charging when battery has full charge, and automatically resumes when battery has discharge, totally free maintenance. A fully-automatic, worry-free and smart 12volt solar charger
Full Safety ProtectionsBuilt-in multiple protections including over-charge, over-discharge, over-voltage, over-current, over-load, short circuit, reverse polarity, and over-temperature, waterproof and spark-proof, the battery is fully protected
Wide CompatibilityIt' s not just a solar powered battery charger, it' s an advanced solar battery maintainer for 12-volt sealed lead-acid car, automotive, marine, RV, power sport, boat, dump trailer, motorcycle, trolling motor, tractor, ATV and deep-cycle batteries, including flooded, gel, AGM, SLA and maintenance-free, plus lifepo4 lithium batteries
Superior Quality and MaterialMade of premium Grade A+ solar cells with efficiency up to 21%-30%, tempered solar glass and durable corrosion-resistant frame, withstand extreme weather conditions like UV, anti-rusting, erosion, hail, and sandstorm
Easy to UseUsing the most advanced MPPT technology, this 12 volt solar battery charger starts charging immediately when it detects a battery. Pre-designed holes allow for quick mounting with included suction cups, and all cables are plug and play, offering easy and quick using experience