Table 3-2, Battery Amphrs Capacity To Suggested Absorb Time; Table 3-3, Battery Size To Battery Amphrs (Estimated) - Magnum Energy ME-RC Owner's Manual

3.0 Setup

Table 3-2, Battery AmpHrs Capacity to Suggested Absorb Time

Battery
AmpHrs
Capacity
200-300
310-500
510-700
710-900
910-1100
1110-1300
How do I determine my Battery Amp-Hour capacity? The inverter
requires deep cycle batteries, which are specifi cally made for continuous
use. The batteries are rated either by AHrs or reserve capacity in minutes.
• Amp-hour (AH) capacity is a measurement of how many amps a battery
can deliver for a specifi ed length of time (usually 20 hours) until the
voltage achieves 1.75 VDC/cell at 80° F.
• Reserve Capacity (RC) is a measure of how many minutes a battery can
deliver a certain amount of current (usually 25A) and maintain a voltage
above 1.75 VDC/cell at 80° F.
Info: If using the Reserve Capacity (25A), the 20-hour AH capacity
can be estimated by multiplying 'minutes reserve capacity' by 50%.
Table 3-3 provides an estimated 20-hour amp-hour capacity based on the
group/code size, physical size, and voltage of the battery. If you are not
sure of your battery's 20-hour AH rating, consult your battery manufacturer/
dealer or use the table below to obtain an estimate.

Table 3-3, Battery Size to Battery AmpHrs (estimated)

Group/Code
Size
GC-2 (Golf cart)
L-16
Group 22
Group 24
Group 27
Group 31
4D
8D
Once you've determined the amp-hour capacity of each battery, review how
your batteries are connected (parallel or series) to determine the total amp-
hour capacity of the battery bank:
19
Suggested
Absorb Time
60 minutes
90 minutes
120 minutes
150 minutes
180 minutes
210 minutes
Physical Size
(L" x W" x H")
10 x 7 x 10
3/8 13/16
11 x 7 x 16
11/16 11/16
9 x 6 x 8
1/2 7/8 5/16
10 x 6 x 8
1/4 13/16 7/8
12 x 6 x 8
1/16 13/16 7/8
13 x 6 x 9
13/16 7/16
20 x 8 x 9
3/4 3/4 7/8
20 x 11 x 9
3/4 1/8 7/8
Battery Suggested
AmpHrs Absorb Time
Capacity
1310-1500 240 minutes
1510-1700 270 minutes
1710-1900 300 minutes
1910-2100 330 minutes
2110-2300 360 minutes
2310-2500 390 minutes
Battery Battery AHrs
Voltage (20-hr rate)
6V
5/8
6V
12V
12V
12V
12V
12V
12V
©2013 Magnum Energy, Inc.
220 AHrs
375 AHRs
55 AHRs
70 AHRs
95 AHRs
110 AHRs
200 AHRs
250 AHRs