Battery Tender 021-1163 5W Solar Maintainer Built-in 3-step microcontroller for precise charging Waterproof and sparkproof for outdoor installations Easy, do-it-yourself installation Built-in temperature compensation sensor 12V nominal voltage 270 mAmps Harness the power of the sun with this Battery Tender 5-Watt Solar Panel with built-in smart charging controller. It’s 100% portable and ideal for...


