Thunder 20A DC-DC Battery Charger TDR02020

Obsolete product – This product does not have many features which competitors offer: - No support for charging Lithium batteries which are rapidly taking over the market - Maximum 300W solar input - 2x160W medium sized panels would damage the device - Doesn't support solar-priority - if charging from alternator, solar input is wasted - Won't reverse supply to charge… Read more

car battery when house battery is fully charged Also, while it has a large, bright display, the percentage is not the percentage of charge. Instead, confusingly, it is the charge cycle status.