POWOXI-Upgraded-20W-Solar-Battery-Charger-Maintainer, External Smart 3-Stages PWM Charge Controller, 12V Solar Panel Trickle Charging Kit for Car, Marine, Motorcycle, RV, etc - ABS-20W-Large

• 【Latest Design In 2023】: 20-watt high-efficiency single- crystal silicon solar charger, can generate electricity in any weather. It’s easy to carry and install with simple and generous appearance.Supporting on the ground can receive better sunlight with mounting bracket. It converts sunlight into electricity and maintain your 12-volt battery perennially .US PATENT PENDING! 【Intelligent Charging and Maintenance】:External intelligent 3-stage PWM charging controller adopts fast charging, upgrade charging and floating charging. It generates at least 20%-30% more power than traditional controller. It is equipped with an industrial STM 8 microprocessor, which can intelligently control charging, prolong battery life, and charge and maintain batteries better in all seasons. 【All-Round Protection】:The solar charger has many protective functions, such as preventing battery from overcharging, overvoltage protection, short circuit protection and polarity reversal protection. The charging controller stops all work at night, doesn’t consume electricity, and starts work automatically in the daytime. Safe maintenance of batteries in all seasons to prolong service life. 【LED Indicator】: LED Indicator helps to observe the working state intuitively and understand the battery condition better. Both blue and red indicator lights are on means that it is charging with the battery. Blue, red and green indicators are on at the same time, which means the battery is fully charged. 【After-Sales Guarantee + Low Maintenance】:12-month warranty & life-long technical support.Solar panels are made of light and strong ABS plastic frame. They are lightweight and portable. The surface is made of toughened glass, with high transmittance, durability, waterproof and sunscreen, maintenance-free.