with a multimeter to be all the same voltage, the voltage drop across the cables connecting the rows is not
equal. Also use the voltmeter to make sure that the voltage drops across each battery interconnect is very
close.
Torque all bolts and battery terminals to between 7.38 and 8.11 ft-lbs (88.51 to 97.36 in-lbs OR 10 to 11
nm). Terminals left insufficiently tightened will lead to overheating, melting the battery terminals and
potentially causing a fire. Be careful when using thin washers. You may think you're applying sufficient
torque, but if the washers are too thin, the cable lugs can still move. Add additional washers until you can
tighten and the cable lugs cannot move.
3.4 - Configurations
The KiloVault® HLX+ series of batteries can be used in 12 V, 24 V, 36 V, and 48 V configurations where
one, two, three or four batteries are connected in series, plus to minus, in a row. The maximum number of
batteries in a bank is sixteen, 4 in parallel strings of 4 batteries in series. Each row of batteries must be
kept within 0.2 V of each other or the battery bank may prematurely shut down during charging and
discharging. There are configuration limitations depending on the temperature range of the installation
location and whether or not you are using the HLX+ Bridge. The HLX+ Bridge helps the HLX+ batteries
coordinate their heaters.
3.4.1 - Without the HLX+ Bridge
If you are not using the HLX+ Bridge, and the installation location
will stay above freezing (32°F (0°C)
,
then the HLX+ batteries can be wired together up to 4 parallel strings of 4 batteries each.
KiloVault
®
LLC • 330 Codman Hill Road, Boxborough, MA 01719 • +1 (888) 218-5924 • info@kilovault.com • www.kilovault.com
Revision 1.0, 06/2021
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