Save A Battery All-In-One Automotive Battery Charger.

[frankgabrielli]

1) Depends on the battery or batteries size, condition, etc.

2) Deep Cycle is a circuit that charges the battery, turns itself off, turns on a built in load, drains the battery a few tenths of a volt, turns off the load, turns itself back on. The reason for this is our desulfate circuitry desulfates faster when the charger is in bulk mode.... full current being provided to the battery.

3) LVA only turns off the audible section of the monitor.

[pandurate]

@frankgabrielli Thank you very much. My impression is that using DC mode doesn't work very well if the battery is already fully charged. I ran it yesterday and found the voltage going from 13.8V to 12.8V, where it would stay for some time, then go back up to 13.8V briefly, back down to 12.8V for awhile, and so on. In any case, thank you again for the info.

[pandurate]

How often does it cycle the voltage? How many times (is there an inherent limit?)

2. When should the "Deep Cycle" feature be used? The doc does say to use it on "weak batteries" or when a battery will be stored for a month or longer. But is it harmful (or pointless) to use the "Deep Cycle" function on a new battery?

3. The "Low Voltage Alarm" switch ONLY enables/disables an audio indicator, correct? That is, it doesn't also control circuitry that prevents damaging battery drain, does it?

[pandurate]

I bought a model 9999 but I have questions about it. Sorry, but the documentation is utterly horrible. The tiny "addendum" provides near-zero information. (You should hire a technical writer to create proper documentation for all your products.) I don't like emailing GD support because I get rushed, incomplete, and sometimes inaccurate responses. Some of the questions I have:

1. How, exactly, does the "Deep Cycle" feature of the 9999 work? How low does it let the voltage go?