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Optimal Axpert AGM Battery Settings

Kilowatt Power

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Hi, I predominantly use two types of VRLA AGM batteries with the following characteristics @ 25°C

a) Ritar DC12-200 (AGM 12V [email protected])
Cycle Use Voltage: 14.6V ~ 14.8V (-3mV/°C/Cell), max current: 60A
Float Charging Voltage: 13.6V ~ 13.8V  (-4mV/°C/Cell)

b) Gaston GT12-200AG (AGM+GEL 12V 200Ah/C20)
Cycle Use Voltage: 14.4V ~ 15.0V (-30mV/°C), max current: 50A
Float Charging Voltage: 13.6V ~ 13.8V (-20mV/°C)

I have the following settings on 24VDC and 48VDC Axpert MKS inverters with 2*200Ah and 4*200Ah batteries in series:

02 - Maximum charging current: 20
05 - Battery type: USE
11 - Maximum utility charging current: 20
26 - Bulk charging voltage (C.V voltage): 29.2 & 58.4 on 24VDC and 48VDC models respectively. NB: Maximum on MKS inverters
27 - Floating charging voltage: 27.4 & 54.8 on 24VDC and 48 VDC models respectively
29 - Low DC cut-off voltage: 21 & 42 on 24VDC and 48 VDC models respectively
32 - Bulk charging time: AUt (5K model only)
33 - Battery equalization: Ed5 (disabled)

In my part of the world, the high/low temperature typically varies from 22/13°C to 27/16°C and is rarely below 10°C or above 30°C over the course of the year. 

In your opinion, are these battery settings optimal for power backup applications?



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