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Posted

Good day all.

I am struggling to get my charging rate correct to my 2x12v batteries that are in series

Battery specs : Ingle DG12-105Ah (GEL)

Cycle use 14.2-14.4 volt

Standby use 13.6-13.8 volt

Current  > 31.5A

I am using a 3KVA MKS 24v inverter and software Watchpower.

I can not select user in the battery section on watchpower --it only shows Flood and AGM.

 

The batteries are 3 years old and if the inverter is on battery mode then I only get about 10min of power running only my tv.

Inverter charges batteries to 27v and battery voltage falls to 24,8 volt if charging stops--I have tested the batteries and on is 12.5 and the other 12.3v.

 

Any help please to get my batteries good again.

Cheers

 

Posted
On 2022/05/11 at 7:28 AM, zs1ssm said:

Good day all.

I am struggling to get my charging rate correct to my 2x12v batteries that are in series

Battery specs : Ingle DG12-105Ah (GEL)

Cycle use 14.2-14.4 volt

Standby use 13.6-13.8 volt

Current  > 31.5A

I am using a 3KVA MKS 24v inverter and software Watchpower.

I can not select user in the battery section on watchpower --it only shows Flood and AGM.

 

The batteries are 3 years old and if the inverter is on battery mode then I only get about 10min of power running only my tv.

Inverter charges batteries to 27v and battery voltage falls to 24,8 volt if charging stops--I have tested the batteries and on is 12.5 and the other 12.3v.

 

Any help please to get my batteries good again.

Cheers

 

After 3 years it does seem your batteries are past their use full life.

Posted

I agree with Scorp your batteries are shot. Your settings for gel batteries is a bid high. The spec voltage on the batteries is @25 degrees. Voltage and charge rate must be lower at higher ambient temps in summer.   

Posted

tech guy came out and changed some settings--Now the batteries take 9 hours to fully charge and runs 2hours until unit shutdown running on battery mode.

 

Average load on inverter is about 600 watt

Posted
13 hours ago, zs1ssm said:

tech guy came out and changed some settings--Now the batteries take 9 hours to fully charge and runs 2hours until unit shutdown running on battery mode.

 

Average load on inverter is about 600 watt

Great news that all is OK. It might be that you had a high charge rate like 30+A. Thus during charging the voltage went quite a bit higher due to this and this higher voltage was used to stop charging. After settings change it could be that the setting is now 10A which allows a lower voltage due to the charging affect and getting them fuller than before.

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