Installation Manual: 22.8kWh

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CAUTION: Verify polarity at all connections with a standard voltmeter before 1) energizing the system and 2)

turning the PHI 3.8 circuit breaker’s “ON/OFF” switch to the “ON” position. Reverse polarity at the battery

terminals will void the Warranty and destroy the PHI batteries.

PHI batteries pose some risk of shock or sparking during the installation and initial wiring and connection

process. This is consistent with all other battery-based storage formats. Be sure to turn the built-in circuit

breaker to the “OFF” position to minimize the risk of shock or sparks during the installation and commissioning

of the system. Use of insulated gloves, clothing and footwear is always recommended when working in close

proximity to electrical devices. Cover, restrain or remove jewelry or conductive objects (metal bracelets, rings,

belt buckles, metal snaps, zippers, etc.) when working with any electrical or mechanical device. Cover or

restrain long hair and loose clothing when working with any electrical or mechanical device.

PHI batteries do not vent any harmful gasses, and do not require special ventilation or cooling.

PHI batteries are not capable of thermal runaway. As with any battery, if the cells are severely damaged due to

physical abuse incurred outside of warranted specifications, it can cause electrolyte leakage and other failures.

The electrolyte can be ignited by an open flame. However, unlike other lithium ion batteries (e.g. LCO, NCM,

and NCA), the PHI batteries’ electrolyte and other material components generate a limited amount of heat.

1.2.2 – Charging at Temperatures Below Freezing

It is important to take necessary steps to determine the temperature of the PHI 3.8 battery prior to charging

the battery, as the battery may otherwise be adversely impacted.

CAUTION:

Do not attempt to charge the PHI 3.8 battery below 32° F (0° C). Although cold temperatures do

not harm PHI batteries, attempts to charge at subfreezing temperatures can adversely affect SOH and cycle

life, and will void the Warranty. If the PHI 3.8 battery must be charged below 32° F (0° C), the rate of charge

must be at no more than 5% of the PHI 3.8 battery’s rated capacity (C/20).

MISE EN GARDE: Ne pas charger la Batterie PHI en dessous de 0° C (32° F). Tout chargement à des

températures de congélation peuvent nuire à l’état de santé et la durée de vie de la batterie, et Annuleront la

Garantie. Dans le cas ou la Batterie PHI doit être chargée en dessous de 0° C (32° F), le taux de charge ne doit

pas dépasser 5 % de la capacité nominale de la Batterie PHI (C/20).

CAUTION: Only use a SimpliPhi approved LFP charger if ancillary charging is required before installation,

testing or troubleshooting. Failure to use a SimpliPhi approved LFP charger will damage the PHI 3.8 battery and

void the Warranty. Refer to the PHI 3.8 Manual for details regarding SimpliPhi-approved ancillary charging

equipment.

1.2.3 – Battery Management System (BMS)

The PHI 3.8 batteries within the AccESS unit are manufactured utilizing Lithium Ferrous Phosphate (LFP) cells,

which are produced under exclusive patented licensed technologies, as well as proprietary materials,

architecture, manufacturing processes and battery management system (BMS). This assures the highest grade

and quality, longest cycle-life, greatest efficiency and freedom from material impurities, toxicity and hazardous

risk.

Each PHI 3.8 battery within the AccESS unit contains circuitry that protects the Lithium Ferrous Phosphate

cells from overcharge, over-discharge and excessive load amperage. If the values specified are exceeded, the

protective circuitry will shut down the flow of electricity to/from the PHI batteries. In some cases, this will

result in the need to manually turn the batteries and inverter back on. Often, inverter system settings will be

saved within the inverter memory storage and will not need to be reset. This is not an absolute standard but is

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