SimpliPhi Battery Manual

REV202010211307© SIMPLIPHI POWER, INC.
SIMPLIPHIPOWER.COM | 805-640-6700
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MISE EN GARDE: Ne pas mélanger les Batteries PHI avec d’autres marques ou autres produits chimiques.
Cela Annulera la Garantie.
CAUTION: Do not combine PHI Batteries with other brands or chemistries. This will Void the Warranty.
4.8 – Battery Bank Expansion
New SimpliPhi Batteries that are added to an existing SimpliPhi battery bank must be of the same nameplate voltage and form
factor. If higher capacity PHI batteries are added, such as PHI 3.8 to a bank of PHI 3.5, the battery bank’s total energy capacity
for system sizing calculations is the sum of the original battery capacity rating (3.5) multiplied by the new total number of PHI
batteries. Therefore, the capacity rating of the original 3.5 PHI batteries determines the capacity rating for the newer PHI 3.8
battery once installed with the original battery bank. For example, a battery bank composed of two PHI 3.5 batteries and one
PHI 3.8 battery has a total energy storage capacity for system sizing calculations of 10.5 kWh for the bank (3 X 3.5 kWh= 10.5
kWh total). In addition, the Warranty for the new, additional PHI 3.8 battery adopts the Warranty and Warranty period for the
original bank of PHI 3.5 batteries.
Consult SimpliPhi Power Technical Support if you wish to expand a SimpliPhi battery bank.
In addition to adhering to all other Installation Manual instructions, refer to the following guidelines when expanding upon an
existing SimpliPhi battery bank:
1. Charge the existing battery bank (“Bank A”) according to normal charging procedure (PHI batteries charge to 56V / 28V /
14V and “rest” at approximately 52.5 - 53.5V / 26.1V - 26.7V / 13.1 - 13.3V after being taken off a charge).
2. Disconnect Bank A from the system, by either
A. Disconnecting all battery cables leading from Bank A’s batteries to the battery combiner box, panelboard, or inverter’s
power panel, OR
B. Turning off the 80A breakers included in each of Bank A’s batteries
3. Connect the additional batteries (Bank B) to the system, following all wiring instructions and torque specications outlined
in previous sections of segment 4.0 in this manual.
4. Modify the settings in the system’s inverter/charger(s) or charge controller(s), whichever device will be used to initially
charge Bank B.
A. Adjust the charge rate in accordance with the number of batteries in Bank B
5. Charge Bank B fully, making sure all loads are disconnected at the time of initial charge
6. Wire all Bank A batteries and Bank B batteries in parallel, adhering to the wiring methods outlined in Section 4.3 above.
A. Ensure that DC Positive common bus and DC Negative common bus ratings are appropriate for the new larger quantity
of batteries in the bank.
7. Reprogram all inverter/charger and/or charge controller equipment for the new larger battery bank capacity.
A. New charging current parameters for the expanded bank should be appropriate for the oldest included PHI battery
model. For example, a battery bank composed of one PHI 3.5 battery with a maximum continuous charge rate of 34
Amps DC and one PHI 3.8 battery with a maximum continuous charge rate of 37.5 Amps DC has a combined maximum
continuous charge rate of 68 Amps DC (not 71.5 Amps DC).