zs1ssm Posted May 11, 2022 Posted May 11, 2022 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 Quote
Irocmaster Posted May 11, 2022 Posted May 11, 2022 Did you try setting 5 on the inverter it self? Quote
zs1ssm Posted May 11, 2022 Author Posted May 11, 2022 Yep---but battery voltage only goes to 27.2volt on inverter display--setting at 28v Quote
Scorp007 Posted May 13, 2022 Posted May 13, 2022 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. Quote
Irocmaster Posted May 14, 2022 Posted May 14, 2022 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. Quote
zs1ssm Posted May 21, 2022 Author Posted May 21, 2022 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 Quote
Scorp007 Posted May 21, 2022 Posted May 21, 2022 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. Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.