Table 3-2, Battery Size To Battery Amp-Hours (Estimated) - Magnum Energy ME-RC Owner's Manual

Table 3-2 below 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 3-2, Battery Size to Battery Amp-Hours (estimated)

Group /
Code Size
GC-2 (Golf Cart)
L16
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:
Parallel connection – batteries connected in parallel (positive to positive,
negative to negative) increase the amp-hour capacity of the battery bank,
but the voltage remains the same.
For example: You have a 12-volt battery bank with three 12-volt batteries
that are rated at 125 Amp-Hours (AH) each. Each of the positive terminals
are connected together and each of the negative terminals are connected
together, which means they are connected in parallel. The amp-hours of each
battery connected in parallel are added together (125 AH + 125 AH + 125 AH
= 375 AH), but the voltage of the battery bank stays the same (12 VDC).
Series connection - batteries connected in series (positive to negative)
increase the voltage of the battery bank, but the amp-hour rate remains
the same.
For example: You have a 12-volt battery bank with two 6-volt batteries
that are rated at 220 amp-hours. The positive terminal of the first battery
is connected to the negative terminal of the second battery, which means
these batteries are connected in series. Since the two 6-volt batteries are
connected in series, the voltage of the batteries are added together to
produce 12-volts (6 VDC + 6 VDC = 12 VDC), but the amp-hour capacity
of the battery bank does not change (220 AH).
In battery banks where you have batteries connected in series and in parallel
–the rules are the same. The batteries connected in series are referred to
as a "series string" and the amp-hour capacity doesn't change. Each "series
string" is connected together in parallel to increase the amp-hour capacity.
Add the amp-hour capacity of each "series string" connected in parallel to
determine the total amp-hour capacity of the battery bank.
©2009 Magnum Energy Inc.
Physical Size
(L" x W" X H")
10 3/8 x 7 13/16 x 10 5/8
11 11/16 x 7 x 16 11/16
9 1/2 x 6 7/8 x 8 5/16
10 1/4 x 6 13/16 x 8 7/8
12 1/16 x 6 13/16 x 8 7/8
13 x 6 13/18 x 9 7/16
20 3/4 x 8 3/4 x 9 7/8
20 3/4 x 11 1/8 x 9 7/8
3.0 Setup
Battery Battery AHrs
Voltage (20-hour rate)
6V 220 AmpHrs
6V 375 AmpHrs
12V 55 AmpHrs
12V 70 AmpHrs
12V 95 AmpHrs
12V 110 AmpHrs
12V 200 AmpHrs
12V 250 AmpHrs