Batteries

Simpliphi PHI 3.8 kWh LFP Battery

$ 2,679USD · price may vary

Model: PHI-3.8-24-60-M
Specifications: 0

Overview

Simpliphi PHI 3.8 kWh LFP Battery

SimpliPhi Power's PHI 3.8-MTM Battery utilizes the safest Lithium Ion chemistry available, Lithium Ferro Phosphate (LFP). Notably, it eliminates cobalt and the associated explosive hazards, ensuring customers' safety and peace of mind. By adopting Lithium Ferro Phosphate chemistry, the risk of thermal runaway, fire propagation, operating temperature constraints, and toxic coolants are all significantly reduced.

Moreover, when combined with our integrated high-performance Battery Management System (BMS), accessible 80A DC breaker On/Off switch, and overcurrent protection (OCPD), the PHI 3.8-M Battery excels in delivering safe, highly efficient, and cost-effective service throughout the lifespan of both residential and commercial installations, whether they are on or off-grid. It is designed to be compatible with all industry standard inverter charge controllers, allowing for seamless integration with balance-of-system equipment. This, in turn, optimizes any power generation source, such as solar, wind, grid, or generator, providing scalable, on-demand energy storage solutions for critical back-up and daily savings on electricity bills.

CHEMISTRY

Lithium Ferro Phosphate (LFP) is The safest Lithium Ion chemistry available No cobalt, risk of thermal runaway or fire

OCPD

Built-in accessible 80 Amp DC breaker On/Off switch

BMS

Built-in Battery Management System

COMPATIBILITY

Compatible with all industry standard inverters and charge controllers Battery bank-to-inverter output sizing must adhere to a 2:1 ratio: battery quantity = (inverter kWAC rating ÷ inverter efficiency) ÷ battery MAX Continuous Discharge Rate in kWDC

MAINTENANCE

Maintenance-free No ventilation, cooling or thermal regulation required

Specifications

PHI 3.8-M™ 24V

DC Voltages – Nominal 25.6VDC

Amp-Hours 151 Ah

Rated kWh Capacity @ C/2 3.8 kWh DC @ 100% DOD 3.04 kWh DC @ 80% DOD

MAX Discharge Rate (10 minutes) 80 Amps DC (2.05 kW DC)

MAX Continuous Discharge Rate 75 Amps DC (1.9 kW DC)

MAX Continuous Charge Rate 75 Amps DC (1.9 kW DC)

DC Voltage Range1 24 VDC to 28 VDC

Depth of Discharge1 up to 100%

Operating Efficiency 98%

Charge Temperature1 32° to 120°F (0° to 49°C)

Operating Temperature1 -4° to 140°F (-20° to 60°C)

Storage Temperature1 6 months: 14° to 77° F (-10° to 25° C) 3 months: -4° to 113° F (-20° to 45° C)

Self-Discharge Rate <1% loss per month

Cycle Life 10,000+ (@80% DOD)

Memory Effect None

Warranty Period 10 Years

Weight 86 lbs. (39.0 kg)

Dimensions 13.5 x 14 x 8 in. (15.5” H w/terminals) / 0.88 ft3 (34.3 x 35.6 x 20.3 cm / 0.025 m3)

Model Number PHI3.8 24V 60 VTE BRK

PHI 3.8-M™ 48V

DC Voltages – Nominal 51.2VDC

Amp-Hours 75 Ah

Rated kWh Capacity @ C/2 3.8 kWh DC @ 100% DOD 3.04 kWh DC @ 80% DOD

MAX Discharge Rate (10 minutes) 80 Amps DC (2.05 kW DC)

MAX Continuous Discharge Rate 37.5 Amps DC (1.92 kW DC)

MAX Continuous Charge Rate 37.5 Amps DC (1.92 kW DC)

DC Voltage Range1 48 VDC to 56 VDC

Depth of Discharge1 up to 100%

Operating Efficiency 98%

Charge Temperature1 32° to 120°F (0° to 49°C)

Operating Temperature1 -4° to 140°F (-20° to 60°C)

Storage Temperature1 6 months: 14° to 77° F (-10° to 25° C) 3 months: -4° to 113° F (-20° to 45° C)

Self-Discharge Rate <1% loss per month

Cycle Life 10,000+ (@80% DOD)

Memory Effect None

Warranty Period 10 Years

Weight 86 lbs. (39.0 kg)

Dimensions 13.5 x 14 x 8 in. (15.5” H w/terminals) / 0.88 ft3 (34.3 x 35.6 x 20.3 cm / 0.025 m3)

Model Number PHI3.8 48V 60 VTE BRK

Still Have Questions About The Simpliphi PHI 3.8 kWh LFP Battery? Give us a call today 1-877-242-2792

What these specifications mean

Detailed specifications for Simpliphi PHI 3.8 kWh LFP Battery have not been published yet. Simpliphi lists this battery in the Batteries, and we add fields as the manufacturer releases them — in the meantime, ask your distributor for the datasheet before ordering.

For a battery, the figures that matter most are communication protocol (CAN or RS485) for talking to the inverter, nominal capacity in ampere-hours (Ah) or kilowatt-hours (kWh), usable capacity after depth of discharge — LiFePO4 typically allows 80–100%, lead-acid closer to 50% and system voltage: 12 V, 24 V and 48 V for low-voltage packs, or a high-voltage stack. Storage is what turns a solar array from a daytime bill-reducer into a system that covers evening loads and rides through outages. It is normally the single most expensive component, so sizing it correctly matters more than with any other part.

Choosing a battery: the checks that matter

The checks below apply to any battery. Run them against the specification table above — most disappointing solar purchases are compatible-on-paper units that fail one of these in practice.

Check the continuous discharge rating against your inverter. A battery that stores plenty of energy but can only deliver 50 A cannot support a large inverter at full output.
Match voltage to the inverter, and confirm the battery appears on the inverter maker's supported list. Closed-loop communication lets the inverter respect the battery's real charge limits instead of guessing.
Read the warranty in full: lithium warranties are stated as a term plus either a cycle count or a total energy throughput, and whichever limit arrives first ends the cover.
Leave room to expand. Packs that parallel cleanly let you add capacity later; ones that do not force a full replacement.

What people get wrong

Ignoring the charge current limit and pairing a large array with a small bank, which trips protection and shortens life.
Mixing old and new batteries, or different chemistries, in one bank. The weakest unit drags the whole bank down and can be damaged by the others.
Sizing the bank for total daily consumption rather than after-dark consumption, which typically doubles the cost for no benefit.

Price and availability in United States

Simpliphi PHI 3.8 kWh LFP Battery is listed at $ 2,679 (USD) for United States. Solar pricing moves with supply, import duties and exchange rates, and distributors set their own margins, so treat this as a comparison reference and confirm the current figure before you order.

SolarBazaar compares equipment rather than selling it. Shortlist here on specification and price, then buy from an authorised distributor or installer in United States: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Simpliphi locally before ordering.

Simpliphi PHI 3.8 kWh LFP Battery — frequently asked questions

How much does Simpliphi PHI 3.8 kWh LFP Battery cost?

Simpliphi PHI 3.8 kWh LFP Battery is listed at $ 2,679 (USD) for United States. The figure is indicative — solar prices move with supply, duties and exchange rates, and each distributor sets its own margin — so confirm the current price with a supplier before ordering.

Who makes Simpliphi PHI 3.8 kWh LFP Battery?

Simpliphi PHI 3.8 kWh LFP Battery is a Simpliphi product, listed under batteries with model reference PHI-3.8-24-60-M. The Simpliphi brand page lists the rest of its range so you can compare across the catalogue.

Is Simpliphi PHI 3.8 kWh LFP Battery right for my system?

That depends on what it has to connect to. For a battery, check system voltage: 12 V, 24 V and 48 V for low-voltage packs, or a high-voltage stack, continuous charge and discharge current, which limits how much power you can draw from the pack and cycle life at a stated depth of discharge, commonly 3,000–6,000 cycles for LiFePO4 against the rest of your equipment before price enters the decision. Size from your evening consumption. Add up what actually runs after sunset for the hours you want covered, then divide by the usable capacity per unit — that number, not the array size, sets how many batteries you need.

Where can I buy Simpliphi PHI 3.8 kWh LFP Battery in United States?

SolarBazaar lists and compares equipment rather than selling it. Use the specifications and price here to shortlist, then buy through an authorised distributor or installer in United States — buying in-channel is what keeps the manufacturer's warranty valid.

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