Forum Discussion

FIRE_UP's avatar
FIRE_UP
Explorer
Oct 06, 2013

OK, What is a "BIRD" system in reference to charging.

Gents, I've read the term "BIRD" for quite a while now and as of yet, in many threads and posts, no one's actually explained what a BIRD system is and or what it does. I'm assuming it's some sort o...
Class A
wa8yxm's avatar
wa8yxm
Explorer III
Oct 06, 2013
BIRD BIdirectional Relay Delay

It is a small device that measures the voltage on both sides of the isolator relay and if the voltage is in the "Charging" range, it will, after a precision delay of somewhere around 30 seconds. Engage said relay so that the house batteries are charged by the engine alternator.... OR, if parked and plugged in, the chassis (Engine) battery is charged by the house converter.

Very useful device.

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