If you’ve spent an afternoon at the sticks of a remote-controlled aircraft, you’re probably well aware of the great limiter for such exploits: battery ... for you, a DIY pack like this might ...

The battery is pre-wired with a single-phase AC inverter and is designed as a simple DIY installation. The battery system comes in three sizes. The smallest, EcoFreedom Lite, is 8.64 kWh rated ...