Charging issue with Xantrex 2000

gatorcq wrote:
The state of charge is depended on a few items.
1) how the internal shunt is connected
2) how many cycles (charge/discharge) you completed
3) whether or not your alternator is involved in the setup
4) whether or not solar is installed
5) the correct setup - better in the auto mode for battery capacity
6) fuel gauge cut out seting

Battery Capacity refers to the battery's reserve capacity in amp-hours. The RC7 approximates the battery state-of-charge (SOC) and run-time then estimates the battery capacity (Auto) over several charge/discharge cycles. However, setting the capacity manually assures a more accurate initial SOC and run-time calculations. The default setting is Auto.

The Fuel gauge Cutout menu sets the battery voltage zero percent state of charge (0% SOC) with no load. This is the point at which the battery has zero reserve amp-hours remaining. The Fuel gauge meter uses this number to determine the 0% battery state-of-charge voltage. The default is 9.5 VDC.

"However, setting the capacity manually assures a more accurate initial SOC and run-time calculations"

Interesting. Maybe I'll try the manual capacity setting. Thanks.

pianotuna wrote:
Hi,

If you are using flooded batteries check the state of charge with a hydrometer.

Good answer however... HE STATED THEY WERE LIFELINE AGM, so no, they are not flooded batteries, they are starved batteries.


To the O/P: Check your charge profile.. The Xantrex units I know do not do auto-equalization like my Progressive Dynamics does, but... I do not know all that many Xantrex models.

Also, use a volt meter and a clamp on ammeter to double check, You could have a battery going south. Recently (Last winter) I had problems with my batteries holding a charge.. Some searching with a clamp on found one battery was sucking more than it's fair share of current.. Replacement fixed the problem (NOTE to others (not the O/P) If you have two six volt in series.. that is 1 12 volt battery for this post and all other practical situations)

The state of charge is depended on a few items.
1) how the internal shunt is connected
2) how many cycles (charge/discharge) you completed
3) whether or not your alternator is involved in the setup
4) whether or not solar is installed
5) the correct setup - better in the auto mode for battery capacity
6) fuel gauge cut out seting

Battery Capacity refers to the battery's reserve capacity in amp-hours. The RC7 approximates the battery state-of-charge (SOC) and run-time then estimates the battery capacity (Auto) over several charge/discharge cycles. However, setting the capacity manually assures a more accurate initial SOC and run-time calculations. The default setting is Auto.

The Fuel gauge Cutout menu sets the battery voltage zero percent state of charge (0% SOC) with no load. This is the point at which the battery has zero reserve amp-hours remaining. The Fuel gauge meter uses this number to determine the 0% battery state-of-charge voltage. The default is 9.5 VDC.

All sounds normal to me

Thanks for all the inputs. Maybe I should leave it alone?

Larry, I see on the CC site where you ask the same question. I'll give an answer here because someone else might benefit.

I had the same setup as you I think (Xantrex and RC7 controller and the 8D LifeLines) and mine did the same thing. I think it was a glitch in the system depending on when the controller sampled the voltage. I never worried about it after I watched the system for awhile.

If 14.4 volts is pushing 10+ amps into those batteries.... they are not 100% charged.
All is normal.

Hi,

If you are using flooded batteries check the state of charge with a hydrometer.