Quote:
Originally Posted by asimmons04
why not just wire the relay to your brake lights so that when they get power, it throws the relay and kicks the alternator in. have it run to a manual switch on the dash that bypasses the brake light wire, so that if your cruising alot and arent doing much braking, you can always cut it on manually (or when stuck in traffic idling alot anyhow).
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that setup, combined with a deep cycle battery (or 2) and an Ultragauge would work great. set the high and low alarms for battery voltage (hi=~14.7, lo=~12.5) when it beeps, acknowledge it and flip the switch to turn on the alternator.