SUNER POWER 12V 20W Solar Battery Charger and Maintainer for 12V Batteries.

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This 12V solar panel battery charger, crafted with SUNER POWER's unique UltraSmart MPPT technology, boasts premium and durable materials in its core parts, including the MPPT charge controller and solar panel. The innovative MPPT-Charge-Controller-Technology delivers a high tracking efficiency of up to 99% and a peak conversion efficiency of 98%, improving the utilization rate by approximately 20%-30% compared to other competitors.

The improved 3-Stages charging algorithm (Bulk, Absorption, Float) effectively charges 12-volt batteries, ensuring safe recharging and increased battery life and performance. The charging automatically cuts off when the battery is fully charged and resumes when it's not, eliminating the need for maintenance.

Equipped with multiple safety protections, this battery charger is safeguarded against over-charge, over-discharge, over-voltage, over-current, over-load, short circuit, reverse polarity, and over-temperature. It is also waterproof and spark-proof, providing comprehensive protection.

The 12V, 12V AGM, and 12V Lithium charging modes allow users to independently charge and control each 12-volt battery, accommodating a wide range of lead-acid boat, car, dump trailer, automotive, marine, RV, powersport, camper, and deep cycle batteries, including flooded, gel, AGM, SLA, VRLA, maintenance-free, and lifepo4 lithium batteries.

The charge level indicators enable visual monitoring of the charging stage, displaying 25%-50%-75%-100% levels. This advanced solar battery charger maintainer is fully automatic, offering a worry-free smart charging experience with zero overcharge.

Crafted with premium Grade A+ solar cells with an efficiency of up to 21%-30%, tempered solar glass, and a durable corrosion-resistant aluminum frame, this solar trickle battery charger is built to withstand extreme weather conditions, including UV, anti-rusting, erosion, hail, and sandstorm, with a wind pressure rating of up to 2400Pa and a snow load rating of up to 5400Pa.

Using the most advanced MPPT charge controller chip, this solar trickle battery charger maintainer starts charging immediately when the battery is registered. With pre-drilled holes on the frame for quick mounting and plug-and-play cables, it offers an easy and convenient user experience.

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