The simple a/c I fly has a Garmin 55 GPS and an ICOM, each with (detachable) internal battery pack and each with external power input connection to a portable 12v12ah battery, which itself has no charging facility when in the a/c.
Can anyone enlighten me in simple layman's terms:
1. if internal and external inputs are both connected, which does the unit draw on first?
2. is it in fact OK to connect both sources, or should the internal packs be removed if the a/c battery is used?
I did pass physics o-level, which amazed me as much as it did the physics master......
Slip