4.4.1 General
Ensure that sufficient space is available for handling and placement of the modules. Do not place
the VALEN ENLiFEN Batteries near a source of heat, in direct sunlight or where the module may be
subject to condensation or water spray. When connected, check the battery voltage. Check the cell
voltages and record them with the module ID.
4.5 Electrical Connections
Proper battery electrical connections are very important for the best battery performance and
utility. Improper battery connections can cause a loss of standby time or even a battery fire. Follow
the electrical connection instructions carefully and review section 1 thoroughly before working on
the battery. Make sure that all terminals and interconnects are clean and connecting bolts are tight.
Ensure all plugs, especially the ones carrying the main power, are securely plugged in and these are
not under stress which could cause them to come loose at a later date.
4.5.1 Cabling Recommendations
Battery ratings are specified at the terminals of the battery. The cabling used to connect the battery
terminals to the load has a voltage drop (when the battery is discharging) that is dependent on
cable length and conductor size. The longer the cable run, the greater the voltage drops. The smaller
the cable wire diameter, the greater the voltage drop. Therefore, to get the best performance from
the battery short, heavy cables are recommended. Do not size the cables based on current-carrying
capacity only. A general rule of thumb is to allow no more than a 20-30mV of voltage drop/metre of
the cable run. As an example, if it is 10m from the battery to the load, the cable should be sized to
allow no more than 2 x 10 x .030 = 0.6 V volt drop. To help select cable sizes for load connections,
the following table should be consulted:
US CABLE SIZE
MM
2
Max. Amps 30mV Drop/M
8 AWG
8.4
15
6
13.3
23
4
21.2
37
2
33.6
59
1
42.4
74
0
53.5
93
00
67.4
117
000
85.0
148
0000
107.2
187
250MCM
126.7
221
350MCM
177.4
309
400MCM
202.4
353
Use 1.74 amps/mm
2
for other cable sizes
6
AUS
