That would be my suggestion too. Just buy a new smart charger. In
the grand scheme of things, especially when you're talking about
boats, they don't cost that much. Also, if proper charging gets you
some extra battery life, it could pay for itself,
Based on what everyone wrote, I've been looking for an "automatic" battery
charger. I checked Harbor Freight and one person suggested.
Here's the instruction manual for one Harbor Freight battery charger:
On Pages 8 and 9 of the manual, it talks about not leaving the charger on
and the possibility of the battery overheating with the charger on. So, I'm
a little confused. Does the automatic shutoff actually work or not?
Thanks, but that wouldn't work for me. I need a battery charger for
recharging a boat battery (that operates the electric motor) after running
the battery down during a fishing trip. And, I sometimes need to be able to
leave the charger on for a week or more without it overcharging the battery.
So, I need a battery charger that will recharge fairly quickly but can be
left on the battery.
I think the problem is that the Chinese engineers hired an English major
to write the manual, and the author tried to make sense of it in a hurry.
Page 9 makes it sound as if the 10A mode is not regulated. That's the
one where you have to keep an eye on it.
It says in the auto mode (apparently 2A), you can go away, and it will
turn on only as needed.
I'm curious about the note of Page 8: "This charger is not recommended
for batteries with a built in Hydrometer eye. The reading of the
built-in eye will conflict with ammeter readings."
I imagine what it means is that you should ignore the eye while charging
because tiny gas bubbles from charging could make the eye read falsely.
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