Almost done soldering, that was a easy egg!
I am currently in debate with myself to convert the transmitter to li ion 2nd hand cells.
Meaning the voltage is nominal 7.2v and the receiver will be "fed" between 6.0v and 8.0v, instead of the 9v battery.
I think this can be done, it seems the receiver works on 3.1v...it could work on even a 1s li ion battery.
For charging i preferer 2s due to the rest and the charging station!
Simple plug in and charge see you when i need you base....
Anybody some idea's about my thought?
With best regards Igor
PS i KNOW how to tread, handle and test those pesky cells.