Suner Power 20W 12V Solar Battery Trickle Charger & Maintainer PRO for Car, Marine, RV, Trailer, Boat

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%, improving the utilization rate by approximately 20%-30% compared to other competitors.

The improved 3-Stages charging algorithm (Bulk, Absorption, Float) allows the charger to effectively charge 12-volt batteries, ensuring the battery is safely recharged and increasing battery life and performance. The charging will be cut off when the battery is fully charged, and automatically resumed when the battery is not full, requiring totally free maintenance.

Multiple safety protections are built-in, including over-charge, over-discharge, over-voltage, over-current, over-load, short circuit, reverse polarity, and over-temperature. The charger is also waterproof and spark-proof, fully protecting the battery.

It's not just a solar battery trickle charger, but an advanced solar battery charger maintainer. This fully-automatic, worry-free smart solar battery charger is compatible with 12-volt sealed lead-acid car, automotive, marine, RV, powersport, boat, dump trailer, motorcycle, trolling motor, tractor, ATV and deep-cycle batteries, including flooded, gel, AGM, SLA and maintenance-free, plus lifepo4 lithium batteries.

The charger is made of premium Grade A+ solar cells with efficiency up to 21%-30%, tempered solar glass, and a durable corrosion-resistant frame. It can withstand extreme weather conditions like UV, anti-rusting, and erosion, hail, and sandstorm, up to 2400Pa wind pressure and 5400Pa snow load.

Using the most advanced MPPT charge controller chip, this solar trickle battery charger maintainer starts charging immediately when the battery is registered. Pre-designed holes on the solar panel frame allow for quick mounting with the included screws, and all cables are plug and play, offering easy and quick using experience.

As we all know, batteries naturally drain power, and if allowed to go flat, may never regain their full power. This product is a solar-powered battery maintainer and charger for 12V batteries, helping to manage battery drain in all seasons. The solar charger converts light energy from the sun into 12-volt DC electricity, which is then transported to the rechargeable batteries through the lead wire and connector of choice, replacing the self-discharge of a battery in storage, so that the battery wouldn't "go dead." It can be used for cars, 4WD's, trucks, motorcycles, marine, boats, farm equipment, or any application where a 12V battery is used.

The high-efficient solar panel allows it to absorb a wider spectrum of sunlight, and as long as there is sufficient sunlight available, the charger will generate an electrical current to trickle-charge the battery. The LED indicator helps better understand the charging status on all days.

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