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

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• 【Latest Design In 2020】: 20-watt high-efficiency single- crystal silicon solar charger, can generate electricity in any weather.
• 【Intelligent Charging and Maintenance】:External intelligent 3-stage PWM charging controller adopts fast charging, upgrade charging and floating charging.
• 【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.
• 【LED Indicator】: LED Indicator helps to observe the working state intuitively and understand the battery condition better.
• 【After-Sales Guarantee + Low Maintenance】:12-month warranty & life-long technical support.