Battery Tender® Solar Charge Controller(0) No Reviews yet $19.95 SKU: 400-0365-BT Quantity discounts available QuantityPrice -+ DescriptionDescriptionThis solar charge controller assures the optimal voltage is regulated to the battery from the Battery Tender® Solar Panel Charger. For use with 17 watt (SKU 021-1173) and 35 watt (SKU 021-1174) solar panel chargers.Patent 11,552,484See MoreSee Less