PHI 3.8 24V & 48V Battery Manual
REV073019
SimpliPhi Power, Inc. | 3100 Camino Del Sol | Oxnard, CA 93030, USA | (805) 640-6700 | info@simpliphipower.com | SimpliPhiPower.com
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Figure 4.0 represents two PHI Batteries in Parallel. Wire lengths from PHI Batteries should be
identical
in length and gauge in order to balance the load across (all) PHI Batteries in the
installation
. Identical wiring length is a critical feature of parallel power storage systems
that must be adhered to throughout all parallel wiring instructions. Failure to wire in
parallel will void the Warranty.
Special attention should be paid for parallel installations. Correct wiring is essential to insure
optimum performance and system longevity. All wire “runs” should utilize
identical wiring gauge
and
identical wire lengths
between PHI Batteries and the common negative or positive “Bus” or
Load. Figure 5.0 depicts four PHI Batteries that have been wired in Parallel. This configuration
requires
8 identical lengths of appropriately heavy gauge copper wire
.
Figure 5.0 - Four PHI Batteries in Parallel
Helpful Tips:
•
Use identical length and gauge wire to balance the load across the PHI Batteries.
•
Determine the cable length for the PHI Battery terminal farthest from the bus first.
•
Make all PHI Battery cables a matching length.
•
Additional cabling or slack that remains with the shorter distance runs can be coiled
and secured with Zip Ties.
Wiring Methods:
1. For 1 to 8 units: Wire directly to inverter & charge controller equipment.
2. For 6 to 20 units: Use a DC combiner or panelboard.
3. For 20+ units: Connect the PHI Battery terminals directly to a common bus.
4. Positive wire runs should be separated from negative wire runs in separate conduit.
4.2 – Torque Values
For the terminals on the PHI Batteries with threaded stud DC terminals, torque to 160 in-lbs. (13.3 ft-lbs.).
4.3 – Battery Wiring Methods
4.3.1 – Connecting Cable Leads to the PHI Batteries
Before connecting the cable leads to the PHI Battery, please be aware of the following
information concerning power cabling, considerations for power cable terminations as well as
installation environments.
CAUTION: Spark may be present when connecting wires to PHI terminals.