using a4 alt to charge house batteries

[hanleyclifford]

Allow Me to Clarify

What I mean to say is that a vessel connected to shore power when loads are present should "never" use a multi stage charger as a maintenance charger. The reason for this is that most of the multi stage chargers are keyed on voltage. Hence when a connected system experiences a load such as a refrigerator which will momentarily drop the voltage, the charger will revert to bulk charge. By the type equilibrium voltage has been restored and the refrigerator stops cycling the process is ready to repeat. The batteries thus receive consecutive blasts at very high voltage when they don't really need it. The result is battery boiling.

[romantic comedy]

Hanley, my statpower specifically says that it is to used as a power supply, while charging batteries. It is a 3 step charger.
That is what the company says.

[hanleyclifford]

http://www.moyermarine.com/forums/at...1&d=1305339750 I had the Pro Sport 20 hard wired while living aboard. It wouldn't stop overcharging the batteries. Now I use the IOTA 30 constant voltage maintainer and rarely add water.

[ndutton]

Hanley, my statpower specifically says that it is to used as a power supply, while charging batteries. It is a 3 step charger.
That is what the company says.

The instructions for Sony's Guest 2610 specifically say not to have loads on while charging.

Reference:

http://www.marinco.com/files/support/product/manuals/2610.pdf

page 3, item 2.

[romantic comedy]

I have not really used 12 volt power when the charger is plugged in. Only a few lights here and there. So I really cant say either way. My charger is 12 years old. The lights on the charger are strange. The 5 amp charge light stays on, and the lights never change. The batteries are always charged. I can see when it is charging, by a volt meter.

Always good to hear other people's experiences.