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post #809 of Old 09-25-2013
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Re: Low buck projects- Let's see 'em!

Originally Posted by obelisk View Post
here is a backup voltage regulator that I just installed here in NZ. design came from Marine Electrics of Opua. It is a Bosch RE55 regulator for a car and a common relay for the ignition. well under NZD$100 and a great backup to a Balmar/AmplePower/etc. it is single stage but only set to bring battery voltage up to 14.2V so you may want to keep an eye on your electrolyte levels if motoring for an extended period but that voltage is low enough to avoid frying most lead-acid batteries (can't speak for gel, AGM or lithium). it is a fantastic backup that could save you a big headache should that costly "Smart" regulator fail at an inconvenient time.
It gives you the same results as the dumb regulator that is standard on alternators - in boats or cars. This is often disabled to add an external reg.

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