SUNER POWER Waterproof 12W 12V Solar Battery Charger & Maintainer Pro for Car, Boat, Marine RV Trailer

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 to prevent it from going flat.

The high-efficiency solar panel allows for the absorption of 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 charger is built with the most intelligent MPPT (Maximum Power Point Tracking) chip, intelligently charging and fully protecting the battery. The MPPT technology generates at least 20%-30% more power than traditional PWM. The LED indicator helps to better understand the charging status.

The LED indicator provides clear monitoring of the working status: blinking green indicates that the sunshine is effective but the charger is not yet active; blinking red indicates that the charger is working to charge the battery; solid green indicates that the battery is fully charged; and solid red indicates an error, such as reversed polarity.

The solar cells used are of high efficiency, 30% more than competitors, and work great in sunlight. The surface is covered by tempered solar glass, protecting the solar cells from snow, hail, dust, and other environmental factors. The IP65 waterproof design allows the charger to withstand rain and snow, with no need to worry about mounting it outside.

SUNER POWER was founded by a team of technicians with at least 10 years of experience in the solar industry prior to starting the company. The company is committed to providing home and business owners with an easy way to be powered by affordable, clean, and reliable solar power.

The 12V solar panel battery charger is crafted with SUNER POWER's unique UltraSmart MPPT technology, with its core parts, including the MPPT charge controller and solar panel, built using premium and durable materials. 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-stage charging algorithm (Bulk, Absorption, Float) allows for more effective charging of the 12-volt battery, ensuring safe recharging 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 no maintenance.

The charger is built with multiple safety protections, including over-charge, over-discharge, over-voltage, over-current, over-load, short circuit, reverse polarity, and over-temperature, as well as being waterproof and spark-proof, fully protecting the battery.

The solar battery charger maintainer is compatible with a wide range of 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, maintenance-free, and LiFePO4 lithium batteries.

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

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

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