Interesting Engineering on MSN

New smart car charger uses solar and engine power to recharge batteries 13x faster

For higher-power needs, the optional Charger 2 DC Hub adds multiple outputs, including a 12-volt, 50-amp Anderson port, USB-A ...
EDN

12V Solar Inverter Battery Charger

Here is an energy saving solar inverter battery charger. It harvests solar energy to replenish 12 volt inverter battery. It has auto cut off facility to stop charging when the battery attains full ...