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 Battery Charger		  New Topic  Topic Locked
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ajada
Deckhand

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USA
19 Posts
Initially Posted - 09/08/2006 :  05:36:05  Show Profile
Hey gang---I have an '82 TRFK, recently acquired. On it is a 30 amp Guest Charger. I suspect that the charger does not do its job amply.
When it is on it buzzes and gets quite warm to the touch. I depleted the batteries somewhat and put the charger on and found the charge did not come up. So I am assuming it is not outputting properly. Is there a way to test without removal from the boat? Do I need this much capacity? Is anyone familiar with the Newman chargers? I have three new batteries and don't want to trash them. Currently I am using a small 10 amp plug-in Sears type charger for replenishment.

Thanks
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britinusa
Web Editor

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USA
5404 Posts
Response Posted - 09/08/2006 :  06:05:50  Show Profile  Visit britinusa's Homepage
Some things that might help are...
How old is the charger?
When the charger is 'charging' what is the voltage at the battery terminals?
Is the charger designed to charge 3 batteries at once (are there 3 sets of battery charging leads)
Is the inline fuse(s) ok?

Paul.
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Frank Hopper
Past Commodore

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Pitcairn Island
6776 Posts
Response Posted - 09/08/2006 :  09:45:39  Show Profile  Visit Frank Hopper's Homepage
You probably have an old Ferro resonant charger; old technology, slow, hot and noisy. But they run forever, check the output fuse inside. If you leave it on 24/7 be sure to leave a light or fan on, they want some drain on the battery; they don't do a good maintenance mode.

There are much better ones on the market, I use an upmarket Charles Marine 20 amp UL unit. It has the ability to change its charge profiles for different kinds of batteries, it is on 24/7 anytime I ame plugged into shorepower.

Yes 30 amps is big.
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.