Deans T Plug to USB A 2S-6S Charge Adaptor & LED Voltmeter 6-26v Lipo Adaptor RC
This handy and lightweight convertor allows you to connect and power USB devices from Deans batteries (minimum 2S).
It also functions as a battery meter and gives you a Red LED read out of the current battery voltage. Overall combined cell voltage is shown, not individual cell voltages.
If you need a battery meter, why not grab this, as it gives you the ability to charge USB devices as well!
