Stealth Charger

PAkev

Senior Chief Petty Officer
Joined
Sep 9, 2002
Messages
665
I know there have been a few posts around this topic lately but I am specing my new boat and am considering my acessory power alternatives. The manufacturer offers a stealth charger as an option which charges by either AC or DC power. From my understanding this charger tops off the accessory batteries from the alternator and through the cranking battery while on the go. However, I understand that charging from the alternator may be too fast of a charge for deep cycle batteries which may shorten their life. I will be running a trolling motor between 65 & 75 lb thrust and probably on 24 volts. Therefore, I will also be wiring two 12 volt deep cycle batteries in a series which I would expect to get some descent time out of.<br /><br />I don't have a problem plugging the charger in a day or two before I hit the water but its also nice to know I can charge up my trolling motor batteries just by doing a little cruising around with outboard power. If I knew the stealth charger would compromise the life of my trolling motor batteries I would dismiss any further consideration. All in all, I seem to be inclined to have a seperate trolling/accessory battery wired with independant charger and have a few less wires to worry about when changing batteries. <br /><br />Helpful advice and opinions appreciated<br />Kevin
 

airman

Petty Officer 1st Class
Joined
Aug 9, 2003
Messages
332
Re: Stealth Charger

All the literature I've read states that a lead acid battery can safely be charged at up to 40% of it's rated capacity until it is 80% charged. I.E. a 100amp-hour battery can be safely charged at 40 amps. Note that most alternators don't put out anywhere near what they are rated at unless you are running at WOT with flat batteries. I would use it but watch the water level.
 
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