maximum dc voltage output Magnum 3012 with remote

I hate that. It usually takes 3 or 4 exchanges before the CS person actually reads what you write, and that in your first email you answered all of the questions they emailed back.

Chris,

I can understand. They are used to dealing with folks who scream about a problem and provide little or no information. That is why I asked on rvnet first.

Manual says 16v max, what did you set absorb volts to? You really want to float at 15.4v always?

jharrel,

No, my usual float is 13.2 However, I'm not getting any where near 15.4. I will try resetting both float and absorb.

jharrel,

Bingo! You have to reset absorb to a higher number than the float. (give yourself a gold star!)

Thought that might be it, doesn't make sense to have float higher than absorb, wish they would note that behavior in the manual though. Was about to go out and try it myself.

pianotuna wrote:
Hi,

I was toying with my charge voltages. I wanted to try 15.4. When I set 15.4 on the remote it did not get above 14.7 volts. The bank was fairly full so it was only doing between 8 and 10 amps of charging.

...

Do you have a Voltage cap set? The cap might be lower than the 15.4V Abs you are trying with the result that your cap setting is overriding.

Does your Battery-Temp-Sensor work. I did once have a faulty one from Magnum. It could have been the circuit board though as I ended up exchanging the entire inverter and BTS cable.

HTH;
John

John,

Thanks to jharrel I discovered absorb setting has to be higher than the float value. All is well.

Why would you set float to 15+ ???

Time2roll,

So that I can do a recovery on the AGM's when that becomes needed. At 77 f (25 c) lifeline suggests recovery voltage for 8 hours @ 15.48 volts.

Since the computer boards in the RV can't withstand more than 15.4 I thought that with temperature compensation that would be enough to do the deed.