ACCESSORY to VERIFY THE RESIDUAL CHARGE OF YOURS
RX BATTERIES (receivers) !!!
The Xpower version 3 battery tester is the best controller for the charge level of your RX receiving batteries, with a bright LED, you can control 4.8v or 6.0v batteries that can be switched with the small lateral swicth, the product is very small and is equipped of double-sided tape to easily attach it to your radio-controlled model, car, boat, plane, etc.
Simple, inexpensive and indispensable !!!