So, I replaced two 5.5 year old 8D's on 6/2/17. On 6/7/17- Charles 60 amp charger goes on the fritz and has no output on that (new) bank, remove it and send it out for repair. Generator which was running last weekend now has no charge output. Manual charger used on the 8d's brings one up to normal voltage and the other after charging 12 hours at 15 A only to 8.87V. I contend the new battery has a short and has caused all these charging problems, the battery dealer says no, what do the experts say? ..............................Pat
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Thread: Bad Battery killing charger(s)??
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06-17-2017 11:07 AM #1
Bad Battery killing charger(s)??
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Re: Bad Battery killing charger(s)??
Cant wait to see what comes of this. I have my opinion but I too will wait to read what the pro 's write.
SEVEN
1979 53' MY Hull #563
Antioch, California
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Re: Bad Battery killing charger(s)??
Does the failing battery become warm while charging? Can you see that the plates are not deformed?
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Re: Bad Battery killing charger(s)??
Mike P
San Miguel de Allende, Mexico; Kent Island MD; San Antonio TX
1980 53MY "Brigadoon"
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06-18-2017 10:39 AM #5
Re: Bad Battery killing charger(s)??
well I got two new batteries (gratis) and have installed them with a new charger and all is well 24 hours later. To answer the previous question at 15amp charge I could not detect the battery getting hot while charging. I had it on charge for 14 hours and it had an immediate voltage of 8.85, by the time I got it to the battery shop it was 4.72 . My theory is the battery was f 'd inside and caused the 60 A Charles 5000 to bite the dust as well as my generator alternator.....Pat
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06-18-2017 11:02 AM #6Senior Member
- Join Date
- Apr 2005
- Posts
- 2,771
Re: Bad Battery killing charger(s)??
Doesn't anyone make some sort of an electrical one way device to prevent "back flow". The thought of a bad battery wrecking my charger and generator is very disconcerting....and costly.
Walt
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06-18-2017 11:11 AM #7
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Re: Bad Battery killing charger(s)??
Generator and charger failures may be coincidental, they both should have protected themselves from overload. Fine print in battery warranty may exclude anything other than the battery. Hope it goes well.
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Re: Bad Battery killing charger(s)??
As far as fuses go when I was replacing a lot of chargers and inverter/charges in Puerto Vallarta, I found more than once a charger that was completely fried from a short or a lose electrical cord and when I opened them up they would have burned circuit boards and wires but any fuses inside would not have blown, makes you wonder what they were there for. John
Mahalo V
1974 53 Motoryacht
Hull Number 406
San Diego, Ca. Ready 32 Nordic Tug, Brunswick Ga.
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06-18-2017 12:28 PM #10
Re: Bad Battery killing charger(s)??
Every charger leg should be fused in the line to the battery.
Scott
41C117 "Hattatude"
Port Canaveral Florida.
Marine Electronics and Electrical Products Distributor.