Thank you in advance for your help.
Problem: Two 6V batteries in series show different voltages when charging (0.5V difference - 7.56V and 7.06V). Batteries show the same voltage at rest (6.5V). Batteries bubble/gurgle when charging (14.5V @ ~2.2 amps). Battery bank shows ~13.0V when not charging. I'm concerned about the difference in voltage while charging primarily and the bubbling secondary.
Also, the charge controller is jumping from showing 13.1V (battery voltage resting) up to 14.5V when the PV array is turned on. Shouldn't the charge controller show the voltage state of charge of the batteries and not the voltage it's charging with?
When the PV is released, the voltage jumps back down to 13V instantly.
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Batteries: (2) 6v AGM wired in series as a 12V bank.
Charger: 30A EPEver charge Controller
Panels: (4) 100W solar panels
System is isolated / not chassis grounded.
Was going to independently charge them with a battery charger, but they're already at the same resting voltage. Is one of my batteries bad because it's not the same charging voltage as the other? Is my charge controller overcharging my batteries?
Thanks again. I'm lost here.
edit: understood mod note. no site indication was given of why post wasn't working. thought it was on my end. thanks for the help
Problem: Two 6V batteries in series show different voltages when charging (0.5V difference - 7.56V and 7.06V). Batteries show the same voltage at rest (6.5V). Batteries bubble/gurgle when charging (14.5V @ ~2.2 amps). Battery bank shows ~13.0V when not charging. I'm concerned about the difference in voltage while charging primarily and the bubbling secondary.
Also, the charge controller is jumping from showing 13.1V (battery voltage resting) up to 14.5V when the PV array is turned on. Shouldn't the charge controller show the voltage state of charge of the batteries and not the voltage it's charging with?
When the PV is released, the voltage jumps back down to 13V instantly.
----
Batteries: (2) 6v AGM wired in series as a 12V bank.
Charger: 30A EPEver charge Controller
Panels: (4) 100W solar panels
System is isolated / not chassis grounded.
Was going to independently charge them with a battery charger, but they're already at the same resting voltage. Is one of my batteries bad because it's not the same charging voltage as the other? Is my charge controller overcharging my batteries?
Thanks again. I'm lost here.
edit: understood mod note. no site indication was given of why post wasn't working. thought it was on my end. thanks for the help
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