SUNER POWER 12V 50W Solar Battery Trickle Charger Maintainer, Built-in Smart MPPT Controller, Waterproof 50 Watt Solar Panel Charging Kit + Mount Bracket for 12 Volt SLA AGM Deey Cycle Lithium Battery - BC-50W-M1

• 【 UltraSmart MPPT Technology 】This 12v solar panel battery charger is crafted with SUNER POWER's unique UltraSmart MPPT technology, so all of its core parts, including its mppt charge controller and solar panel are built using premium and durable materials. The innovative MPPT-Charge-Controller-Technology allows to deliver high tracking efficiency of up to 99% and peak conversion efficiency of 98%, improve approximately 20%-30% utilization rate than other competitors. 【Improved 3-stages Charging】The 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. The charging will be cut off when battery is fully charged, and automatically resumed when battery is not full, totally free maintenace. 【 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 Level】The 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 Material】Made 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 allows for quick mounting with included adjustable mount brackets, and all cables are plug and play, offering you easy and quick using experience.