Magnum Energy ME-ARC Remote - Manual (Page 37)

© 2012 Magnum Energy, Inc. 31
3.0 Setup
Table 3-2, Battery Type to Charge Voltages
Battery
Type
Inverter
Voltage
Absorption
Voltage
Float
Voltage
Equalization
Voltage
GEL
12 VDC 14.1 VDC 13.6 VDC 14.1 VDC 1
24 VDC 28.2 VDC 27.2 VDC 28.2 VDC 1
48 VDC 56.4 VDC 54.4 VDC 56.4 VDC 1
Flooded
12 VDC 14.6 VDC 13.4 VDC 15.5 VDC
24 VDC 29.2 VDC 26.8 VDC 31.0 VDC
48 VDC 58.4 VDC 53.6 VDC 62.0 VDC
AGM 1 2
12 VDC 14.3 VDC 13.1 VDC 15.5 VDC
24 VDC 28.6 VDC 26.2 VDC 31.0 VDC
48 VDC 57.2 VDC 52.4 VDC 62.0 VDC
AGM 2 3
12 VDC 14.5 VDC 13.5 VDC 14.5 VDC 1
24 VDC 29.0 VDC 27.0 VDC 29.0 VDC 1
48 VDC 58.0 VDC 54.0 VDC 58.0 VDC 1
Custom 4
12 VDC 12.0-16.0 VDC 12.0-16.0 VDC 12.0-16.0 VDC
24 VDC 24.0-32.0 VDC 24.0-32.0 VDC 24.0-32.0 VDC
48 VDC 48.0-64.0 VDC 48.0-64.0 VDC 48.0-64.0 VDC
Note¹: Voltage same as absorption voltage—to prevent equalization.
Note²: Specifi cations for Concord (Lifeline Series) AGM batteries.
Note³: Specifi cations for East Penn, Deka, Discover and Trojan AGM batteries.
Note
4 : When using the Custom setting, the EQ (Equalization) voltage adjust-
ment cannot be set lower than the Absorb Voltage setting. Also, the EQ Voltage
adjustment cannot be set higher than 2 volts (12-volt systems), 4 volts (24-
volt systems), or 8 volts (48-volt systems) above the Absorb Voltage setting.
Example: The maximum charge rate of your inverter/charger is 120 amps
and you need to limit the charge rate to 72 amps. Choose the Max Charge =
60% setting (72 amps = 60% of 120 amps) .
Info: If the Maximum Charge Rate setting is set to 0%, the topol-
ogy of the Magnum inverter (when connected to an AC source) will
override the 0% setting and start charging if the battery voltage
is: <12 VDC (12-volt models), <22 VDC (24-volt models), or <44
VDC (48-volt models).
How do I determine where to set my Maximum Charge Rate? The
maximum charge rate is generally set to a C/5* rate (C = the total amp-
hour capacity of the battery bank – using the 20-hour AH rate). The C/5 rate
is usually used when the objective is to charge the batteries as quickly as
possible (i.e., 400 AH ÷ 5 = 80 amp maximum charge rate). A lower rate such
as C/20* is used when the batteries need to be charged as slow as possible.
* C/5 or C/20 rate – charge rates are commonly expressed as a ratio of the total
amp-hour (AH) capacity of the battery bank. For example, with a 400 AH battery
bank (C = 400), the C/5 charge rate is 80 A (400/5 = 80 A).
CAUTION: The C/5 or C/20 charge rate settings are guidelines.
They are not requirements on how you should set your battery
charge rate. For specifi c charge rate requirements, refer to your
battery manufacturer.