SimpliPhi ESS Battery Installation Manual

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array has a minimum of 4 batteries. This helps ensure that the battery bank receives as much charge as
possible from the AC Coupled solar PV.
CAUTION: Using fewer than the calculated number of SimpliPHI batteries in this AC Coupled
charge calculation may result in limited and ineffective charging from AC coupled PV in Off-
Grid or Grid-Outage conditions.
For specific settings related to the inverter’s charge and discharge rates in an AC Coupled system, please refer
to the inverters integration guide.
4.0 – Installation
4.1 – Installation Options
The SimpliPHI 4.9 Batteries are designed to be wall mounted only, with terminals facing up. Do not install them
upside down, with the terminals facing the floor. This will Violate the terms of the Warranty. A maximum of 72
SimpliPHI batteries can be connected together via their communications cables to an approved inverter.
4.2 – Environmental Considerations
4.2.1 – Charging & Discharging at Temperatures Below Freezing and Above 70° C
The SimpliPHI Battery’s internal BMS and protective circuitry prevent it from charging below 32° F (0°
C) and discharging below -4° F (-20° C). Therefore, install the battery in conditions where ambient
temperature does not drop below freezing in order to maintain optimal SimpliPHI battery system
operability. Additionally, the charge and discharge rates will automatically curtail when internal battery
temperature exceeds recommended values. The charge and discharge rates of the SimpliPHI battery
will automatically curtail the charge and discharge current from the inverter based on internal battery
temperature based on the chart below:
Table 4.0 – Charge Curtailment at Temperature
Temperature
Charge Current
Discharge Current
Below -20° C
0A
0A
-20° C to -10° C
1A
48.5A
-10° C to 0° C 3A 48.5A
0° C to 7° C
20A
48.5A
7° C to 50° C
48.5A
48.5A
50° C to 70° C
15A
48.5A
Above 70° C
0A
0A