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Ray
Ray

Posted: Thu Jun 06, 2019 7:47am

Post Subject: Trickle charging engine battery

Hi Tony, Is it essential to disconnect the battery leads from the engine's starter battery before connecting a battery charger set to provide a maintenance charge? Regards Ray

Tony-B
Tony-B

Posted: Thu Jun 06, 2019 9:04am

Post Subject: Trickle charging engine battery

Dear Ray, As long a sits a relievedly modern charger providing at least two stage charging there is no need to disconnect anything. If it is a very old car charger that is not much more than a transformer and rectifier then it will be capable of eventually subjecting the battery and connected circuits to 16V+ so that type really needs disoding of but as long as you keep a close eye on the charging voltage and stop charging when it reaches 14.5 volts you still don't need to disconnect anything. This type of charger will destroy batteries if left on and connected 24/7. If you have solar are you aware that a voltage sensitive relay will allow the solar to charge both battery banks. If you want to do this tell me if you have twin alternators because it will also parallel them and one may stop charging when its output is no longer required for charging. I can then explain more.

Ray
Ray

Posted: Thu Jun 06, 2019 1:36pm

Post Subject: Trickle charging engine battery

Once again you've been very helpful and prompt; it good to be able to tap into your experience. Thanks Ray

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