BattaMax User Manual
Revision 3.0
Page 6 of 13
windy
nation
10/04/2019
Battery cables provide the link between the batteries, equipment, and charging system. The battery cable
should be sized for the maximum load of the system where the voltage drop on the cable will not exceed 0.2
volts. To ensure proper connections, please use the wire gauge reference in Sec 3.2.1. Please note: UL and
NEC electrical cable amperage ratings are lower than the chart below.
3.2.1
Wire Gauge Reference
AWG
Diameter
inches (mm)
Ohms per
1000ft
Maximum
Current (A)
16
0.051 (1.29)
4.016
22
14
0.064 (1.63)
2.525
32
12
0.081 (2.05)
1.588
41
10
0.102 (2.59)
0.999
55
8
0.129 (3.26)
0.628
73
6
0.162 (4.11)
0.395
101
4
0.204 (5.19)
0.249
135
2
0.258 (6.54)
0.156
181
0 (1/0)
0.325 (8.25)
0.098
245
00 (2/0)
0.365 (9.27)
0.078
283
000 (3/0)
0.410 (10.4)
0.062
328
0000 (4/0)
0.460 (11.68)
0.049
380
3.2.2
Threaded Terminals
The BattaMax has two threaded terminals and comes with the necessary bolts and washers to secure a cable
connection.
Place battery connection cable lug (not included) over the threaded insert of the battery terminal ensuring that
the cable lug connection is contacting the metal surface of the terminal. Place the flat washer on top of the cable
lug, followed by the lock washer. Do not place washer between the terminal lead and the battery wire, which
creates high resistance and can cause terminal meltdown.
Add the hexagonal bolt and tighten to a torque of 98-107 (in-lbs), 11-12 (Nm)
3.2.2.1
Terminal Protection
Corrosion can build up on terminals if they are not kept clean and dry. To prevent corrosion, apply a thin coat of
terminal protector spray that can be purchased through your local automotive parts dealer.
3.3 C
ONFIGURATION
Batteries can be connected in series (increases voltage, maintains ah capacity), in parallel (increases ah
capacity, maintains voltage), or in a combination of series and parallel.
3.3.1
Series Connection
A series connection will increase the system voltage and the system capacity (Ah) will remain unchanged.
