AGM Battery voltage level
System
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I have a 24v battery bank (400ah) made of agm batteries ,what should the voltage read when fully charged? I am using a mx60 charge controller with a rts.
System
Posts: 2,511 admin
System
Posts: 2,511 admin
Comments
Steve,
According to East Penn (Deka and MK battery brands), a fully charged and rested (no charging or discharging for several hours) 12 V AGM battery should read 12.8 V or higher. For a 24 V system, that would be 25.6 V.
See: http://www.eastpenn-deka.com/assets/base/0139.pdf
I also have a 24 V x 400 Ah AGM battery bank (Deka). The batteries are three years old this month, and they're doing just fine. :cool: I use OutBack's FLEXmax 80 charge controller with the optional remote battery temp sensor (BTS), and I use the following charger settings:
Absorb Voltage (ref 77 F): 28.7 V
Absorb Time: 2-1/2 hours
Float Voltage (ref 77 F): 26.7 V
HTH,
Jim / crewzer
Jim Goodnight
Eastern Regional Sales Manager
OutBack Power Systems
what jim has said would apply to lifeline or sunxtenders too as my voltages are similar.