You need to charge the batteries with a constant current charger that
is capable of letting the charge voltage float well above the normal
limits you see with standard chargers. I have used variable power
supplies and have needed to increase the voltage to twice the battery
voltage to get any current to flow through the battery. As the current
reaches the set charge rate, the voltage will drop to normal levels. I
was doing this with aircraft batteries that were worth many hundreds
of dollars. It probably wouldn't be worth the expense of time and
equipment for the price of most boat batteries.
Steve DeLange
"Jacalyn", c27, #19
"Dream Weaver", c34, #37
Sent from my iPhone
On May 18, 2008, at 11:54 PM, [EMAIL PROTECTED] wrote:
Joe, most battery chargers will not put out anything if the
batteries are severely discharge. You might try and jump your
batteries. Just take a good battery and combine them for a short
time. When your old batteries have about 6-8 volts in them try the
charger again. If the batteries sit discharge for more than a couple
of weeks, its probably too late.
Jeff
-----Original Message-----
From: Joe McCary <[EMAIL PROTECTED]>
To: [email protected]
Sent: Sun, 18 May 2008 5:24 pm
Subject: catalina27-talk: Batteries
Due to a stuck float switch causing my bilge pump to run nonstop for
2½ weeks my batteries are both dead and no longer will take a charge
. I am running an outboard model (Honda 9.9 4 stroke with charger)
and minimum of power needs. I have running lights, anchor and steam
ing lights, cabin lights, bilge pump, VHF radio, small Garmin chart
plotter and a stereo. Does anyone have recommendations for size b
atteries I should get?
Joe McCary
Aeolus II, West River, MD
[EMAIL PROTECTED]
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