Added a new battery monitor...(Aili)
Battery Monitor == Fun! Plus: How to avoid a common mistake regarding AH total I have a couple 2015 Thor Majestic 28a RVs. I added a 2nd 12v battery to the coach (they only came with one). My ba...
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Bringing batteries to true -0- is not enough. My 2 volt cells need to be fed 122% because they are so old. So their charge efficiency factor is 1.22
Excellent quality AGM batteries can operate in the 1.11 to 1.14 range.
Lithium I have no idea about.
My system is borne out of necessity and not convenience. Many times discharged to .80 sometimes to .50 and a few times to .38 of capacity. The saving grace was so time spent discharged. Sometimes I had to hike in still driving rain after a hurricane and hammer the 24 cells with 700+ amperes. We weren't going to have power for a week and I needed to get the cells back to at least 1.250
The system demanded to have the amp hours re-registered every month. An hour with a hydrometer was enough, always bending an eye to the weak sister cell. I have a 300 ampere 3.0 volt transformer that weighs well over 115 pounds. It rides a mini trolley running the length of the shed.
Amp hour meters are only accurate if their database is current, and trends and tendencies won't work here. Only a hydrometer can verify accuracy. Your batteries are the most voltage sensitive item in the system so the amp hour meter is a trends and tendencies indicator for the batteries. Incidental charging and discharging meter amp values are handy tools.
Hope this helps
Excellent quality AGM batteries can operate in the 1.11 to 1.14 range.
Lithium I have no idea about.
My system is borne out of necessity and not convenience. Many times discharged to .80 sometimes to .50 and a few times to .38 of capacity. The saving grace was so time spent discharged. Sometimes I had to hike in still driving rain after a hurricane and hammer the 24 cells with 700+ amperes. We weren't going to have power for a week and I needed to get the cells back to at least 1.250
The system demanded to have the amp hours re-registered every month. An hour with a hydrometer was enough, always bending an eye to the weak sister cell. I have a 300 ampere 3.0 volt transformer that weighs well over 115 pounds. It rides a mini trolley running the length of the shed.
Amp hour meters are only accurate if their database is current, and trends and tendencies won't work here. Only a hydrometer can verify accuracy. Your batteries are the most voltage sensitive item in the system so the amp hour meter is a trends and tendencies indicator for the batteries. Incidental charging and discharging meter amp values are handy tools.
Hope this helps
