20W 12V Solar Battery Charger Pro, Portable 12 Volt Solar Panel Car Trickle Charger & Maintainer Built-in MPPT Charge Controller + 3-Stages Charging for Boat Marine RV Car Trailer Snowmobile

20 Watt 12 Volt Portable Solar Trickle Battery Charger & Maintainer

Made of high efficient solar cells, work great in direct sunshine.

IP65 waterproof design, no worry to place it outside, totally free maintainence.

Full protections-Over charge protection,discharge protection, over current protection, short circuit and reversed polarity protection.

Visual LED indicator help to easy monitor the working status and understand battery conditions.

Painstaking ETFE workmanship, lightweight and easy to carry.

Come with 3-pcs SAE cable kitsfor ring terminals, alligator clips, and lighters, plug and play, easy to use. No electricity cost, no additional maintenance, totally environment friendly.

Product  Specification

Rated Power Output: 20W 

Power Tolerance: ±5% 

Operating Power Voltage: 18V 

Operating Power Current: 1.1A 

Open Circuit Voltage(Voc): 21.6V 

Short Circuit Current(Isc): 1.19A 

Trickle Charging Current: 0.2A 

Floating Charging Voltage: 13.8V 

Overcharge Protection Voltage: 14.4V

• About this item 【Smart Charging】Innovatively built-in intelligent MPPT charge controller chip helps to regulate the whole charging, generating at least 10%-20% more power than competitors. Smart 3-stages of charging algorithm is improved to better charge and maintain battery at a stable level for extended battery life. 【Full Protections】Prevent the battery from overcharge, over-voltage, discharge, and short circuit, reversed polarity protection. IP65 Waterproof and sparkproof, the battery is under full protections. Most similar products just include a reverse diode, would not help to prevent overcharge, battery will be DAMAGED and KILLED. we do it for safety purposes!!! 【Easy To Monitor】The LED indicator allows to visually monitor the working status, help to better understand the solar charger and battery conditions. The charging will be cut off when battery is fully charged and resumed automatically when battery is drained, totally free maintenance. 【Wide Application】Safely used as a solar battery charger and maintainer for different 12V DC batteries including Wet Gel Cell, Deep Cycle,Flooded, Maintenance-free, AGM, Seal Lead , etc. A variety of scenarios for car, boat, RV, marine, trailer, camper, ATV, lawnmower, motorcycle, jet ski, water pump, shed, gate opener, snowmobile, tractor, etc. 【Portable and Lightweight, Charge Anywhere】Weighs only 2.5 pounds and measures 16.1 x 13.4 x 0.15 Inch, lightweight and super portable. The ETFE-laminated case is durable enough to extend the lifespan of the solar panel. A layer of epoxy board is added as a bottom plate to enhance solar cell performance, which is much more sturdy than competitors. Extended 12 months warranty and our 7*24H Lifetime technical service support..