12V 20W Solar Battery Charger Maintainer PRO, Built-in UltraSmart MPPT Charge Controller, Waterproof 20 Watt Solar Panel Charging Kit for 12Volt AGM, Deep Cycle, Lead-Acid, Lifepo4 Battery

Three Battery Charging Modes Independently charge and control each 12 volt battery with selectable charging modes - including 12V, 12V AGM and 12V Lithium - for all types of lead-acid boat, car, dump trailer, automotive, marine, RV, powersport, camper and deep cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free, plus lifepo4 lithium batteries. false Visual Charging LevelThe charge level indicators allow to visually monitor the stage of charge among 25%-50%-75%-100%. It's not just a solar battery trickle charger, it's an advanced solar battery charger maintainer.

A fully-automatic, worry-free smart solar battery charger with zero overcharge. false- Ultra-Smart MPPT TechnologyThis 12v solar panel battery charger is crafted with SUNER POWER's unique Ultra-Smart MPPT technology, the innovative MPPT ( Max Power Point Tracking) 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. The solar trickle charger stops charging when battery has full charge, and automatically resumes when battery has discharge, totally free maintenance.
- Full Safety Protections Built-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.
- Three Battery Charging Modes Independently charge and control each 12 volt battery with selectable charging modes - including 12V, 12V AGM and 12V Lithium - for all types of lead-acid boat, car, dump trailer, automotive, marine, RV, powersport, camper and deep cycle batteries, including flooded, gel, AGM, SLA, VRLA and maintenance-free, plus lifepo4 lithium batteries.
- Visual Charging LevelThe charge level indicators allow to visually monitor the stage of charge among 25%-50%-75%-100%. It's not just a solar battery trickle charger, it's an advanced solar battery charger maintainer. A fully-automatic, worry-free smart solar battery charger with zero overcharge.
- Superior Quality and MaterialMade of premium Grade A+ solar cells with efficiency up to 21%-30%, tempered solar glass and durable corrosion-resistant aluminum frame, withstand extreme weather conditions like UV, anti-rusting, and erosion, hail, and sandstorm, up to 2400Pa wind pressure and 5400Pa snow load.
- Easy to Use Using the most advanced MPPT charge controller chip, this solar trickle battery charger maintainer starts to charge immediately when battery is registered. Pre-dilled holes on frame allow for quick mounting, and all cables are plug and play, offering you easy and quick using experienc