SimpliPhi Battery Manual
Table Of Contents
- PHI 3.8-MTM Battery Models
- and gain control of your own power.
- SimpliPhi Power helps you manage your power as a personal resource.
- power generation source – solar, wind, generator – on or off grid, and protects your home and mission-critical business functions from power outages and
- constraints, toxic coolants and the risk of thermal runaway. Safe lithium ferrous phosphate (LFP). No cobalt. No toxic hazards.
- (BMS) to create a portfolio of high performance, scalable and enduring energy storage solutions that provide power security, resilience and daily cycling for savings on your utility bill – all with a 98% efficiency rate.
- Table of Contents
- 1.0 – Introduction
- 2.0 – Safety
- 3.0 – Pre-Installation
- 4.0 – Installation
- 5.0 – Programming
- 6.0 – Troubleshooting
- Appendix A – PHI Battery Safety & Green Attributes,
- Appendix B – PHI Battery Bank Sizing Guide
- Appendix C – PHI Approved External Chargers
- Appendix D – PHI Legacy Battery Parameters
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CAUTION: PHI Battery bank sizing not in accordance with the following sections will damage the PHI
batteries and Void the Warranty
MISE EN GARDE: Un mauvais dimensionnement du groupe de Batteries PHI et non conforme aux sections
suivantes endommagera les Batteries PHI et Annulera la Garantie.
3.0 – Pre-Installation
3.1 – PHI Battery Performance
PHI Batteries do not need to be de-rated unless running continuously at more than 90% capacity, at temperatures below 32° F
(0° C), or above 113° F (45° C). To achieve the greatest cycle life of 10,000 cycles, PHI Batteries are typically operated at 80%
maximum Depth of Discharge.
All PHI Batteries are balanced during final production and testing stages. Following proper wiring guidelines ensures that a
system will not require any manual balancing processes.
3.2 – PHI Battery System Sizing
PHI Batteries are designed to operate at the continuous ratings specified in Table 1.0 – PHI Battery Specifications. Therefore, a
properly sized PHI Battery bank must be sized to handle both the inverter’s “load rate” as well as the maximum potential charge
rate from the solar photovoltaic (PV) array. Take care to consider not only the energy (kWh) requirement of the battery bank, but
also all other power-related sizing parameters, as outlined in Sections 3.2.1, 3.2.2 or 3.2.3 and 3.2.4. Failure to do so will Void the
Warranty.
3.2.1 – Sizing for Maximum Instantaneous Discharge (Load Rate)
The load rate is the amount of power that is discharged from the battery bank to the loads. This may include both alternating
current (AC) and/or direct current (DC) loads. PHI Battery banks are sized so that the batteries’ combined maximum
continuous discharge rate meets or exceeds the load rate.
PHI Battery Bank MAX continuous discharge rate kW DC
≥(Inverter DC Load Rate)+(DC Loads,if any)
Because most loads are AC loads, the load rate is typically represented by the inverter’s AC Power Output rating. Convert
the inverter’s maximum potential AC power draw to the maximum potential DC power draw from the battery bank by
factoring in the inverter’s efficiency rating.
Inverter DC Load Rate=(Inverter power rating kW AC)÷(Inverter efficiency)
Example: An inverter rated at 5 kW AC and 92% efficiency potentially draws 5.4 kW DC from the battery bank.
Inverter DC Load Rate=(5 kW AC)÷(0.92)=5.4 kW DC
If the system includes DC Loads, no AC-to-DC conversion is necessary. Calculate the minimum quantity of PHI Batteries
needed to ensure that the battery bank does not over-discharge by dividing the load rate by the MAX Continuous Discharge
Rate per PHI Battery (found in Table 1.0 or on the relevant battery’s specification sheet).