SUNAPEX 20 Watt Solar Car Battery Charger 12 Volt Waterproof Solar Powered Battery Charger & Maintainer 12v Solar Trickle Charger for Car Boat RV Marine Trailer Battery 20W solar battery charger is made of more effective monocrystalline silicon material, which absorbs solar radiation heat to a greater extent. The power generated is at least 30% higher than other solar panel chargers, which greatly improves the charging efficiency and speed. Note: Please look for the brand SUNAPEX. We are official and genuine products, and our customers enjoy 12-month free warranty service and lifetime technical support. Thank you for supporting and choosing SUNAPEX. SUNAPEX Flexible Solar Panel Kit For 12V Battery Maintain & Trickle Charging Why Do We Need a Solar Trickle Charger or Battery Maintainer? 1. Natural Battery Discharge — Ever left your car sitting for a while only to find a dead battery when you need it most? This is because the car battery will continue to discharge naturally even if the car is parked. Our solar battery charger prevents this by constantly topping up your battery, ensuring it’s ready to roll whenever you are. 2. Continuous Power Drain — Today’s vehicles are packed with over 30 electronics – control modules, alarms, anti-theft systems, and more. They all consume your battery power even when parked. With our solar panel charger, you’ll combat this power drain, guaranteeing your car is always ready for action. 3. Extend Battery Life — Your car battery’s lifespan depends on maintaining the right voltage. If a 12V battery dips too low can lead to sulfation, which is the main leading cause of battery failure. Our solar car charger keeps your battery voltage in the sweet spot, prolonging its life and saving you the cost of a replacement. How to Choose the Right Solar Panel for Your Car? 1. Battery Condition — First of all, our solar panels are only suitable for trickle charging and maintaining 12V batteries, not suitable for batteries already dead. Please check your battery condition before using this solar trickle charger, if the use of the car battery is too long or aging, then even if the solar panel is charged, the battery may not be fully charged or the charging state may not be kept. 2. Power Output — The larger the power of the solar panel, the faster the charging speed. If the solar panel’s power is not enough to meet the needs of the car battery, the battery may not be fully charged even if it is exposed to sunlight all day. So please choose the right watts to match your battery. 3. Usage — If you use your car daily, a lower wattage panel may suffice to maintain your battery. For vehicles parked for extended periods, higher wattage panels (20W and above) provide better effect against battery drain. 30W is ideal for larger vehicles, like SUVs or RVs, or if you have several power-hungry devices to charge. ✅【High-Efficiency Charging】SUNAPEX 20W solar battery charger is made of more effective monocrystalline silicon material, which absorbs solar radiation heat to a greater extent. The power generated is at least 30 % higher than other solar panel chargers, which greatly improves the charging efficiency and speed. ✅【Why Choose SUNAPEX】The Frame of SUNAPEX solar panel charger is made of an FR-4 epoxy board, unlike solar panels with plastic frames, this material never deforms or melts even at high temperatures. No worry about the solar panels being deformed and unable to be used. ✅【Ungraded Intelligent Controller】With upgraded Intelligent Charger Controller and charging algorithm, SUNAPEX 12-volt solar battery charger ensures no reverse discharge, overcharge, over-voltage, or short circuit, protecting your equipment and personal safety. ✅【Easy to Install and Use】Lightweight and compact design makes it easy to install and use. It comes with a quick SAE connection and 3 wiring ways (Red is positive, Black is negative), widely used in 12V LiFePO4, Lithium batteries, and DC charging equipment. Perfect 12V solar battery maintainer for cars, boats, RVs, trailers, ATVs, and more. ✅【Charge Visualization】SUNAPEX 20-watt solar trickle charger has three-color LED indicators that help visually monitor the working status. Solid blue indicates receiving sunlight and the output is normal. Solid red indicates connected to the battery and charging. Solid green indicates the battery is full. No lights indicate a short circuit occurred. ✅【Service and Warranty】The quality of the SUNAPEX solar trickle charger is guaranteed by CE/ROHS certification and provides lifetime technical support and a 12-month warranty. Please feel free to contact us if you have any questions or doubts, we will respond within 24 hours. SUNAPEX Solar Battery Charger, most of man’s choice! Say goodbye to the dead battery How to connect the battery for use Higher Conversion Rate
