Batteries

Simpliphi ESS 4.9 kWh Battery

$ 3,999USD · price may vary

Model: SPHI-B-4.9
Specifications: 0

Overview

The Simpliphi ESS 4.9 kWh Battery utilizes advanced Lithium Ferro Phosphate (LFP) chemistry to deliver more efficient, safer and reliable energy storage. Designed and built with versatility in mind, the SimpliPHI 4.9 kWh Battery seamlessly integrates with all leading inverters, making it an ideal solution for battery replacement, expansion of existing systems or as a new installation. This leading-edge power storage solution is also at the core of the Energy Storage System (ESS): the most advanced, safetycertified ESS available for homes and businesses.

Long battery life

10,000 cycles at 80% depth of discharge (DoD), 96% round-trip efficiency, 26.8 MWh of energy throughput, with 80% retained capacity

Scalable for any energy need

Battery can scale to allow for expansion up to 358 kWh for longer-duration storage.

Flexible to pair with leading inverters

Ready to be integrated with SimpliPHI, Sol-Ark and SMA. Other inverters pending.

LFP battery chemistry

Simpliphi ESS 4.9 kWh Battery Provides peace of mind by reducing cobalt, risk of thermal runaway with fire propagation, operating temperature constraints and toxic coolants.

Broad operating temperature

Ability to be used in a variety of temperature ranges.

Maintenance-free

No ventilation, cooling or thermal regulation required; 10-year limited warranty.

Versatile installation options

IP65 rating supports all weather conditions for bothindoor or outdoor installations.

Validated to industry's toughest safety standards

UL 1642, UL 1973, UN 3480 and UN DOT 38.3.

Closed-loop communication

Optimizing the inverter performance with ongoing feedback between the elements of the system.

Proven overcurrent protection

Integrated BMS and 100A DC breaker on/off switch protects the battery from overcharge and discharge, increasing safety during installation and operation.

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How to read this datasheet

Detailed specifications for Simpliphi ESS 4.9 kWh 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 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, cycle life at a stated depth of discharge, commonly 3,000–6,000 cycles for LiFePO4 and round-trip efficiency, around 90–95% for lithium and 75–85% for lead-acid. 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.

What to check before ordering

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.

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.
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.

Where buyers lose money

Installing lithium packs in an unventilated, hot enclosure. Sustained high temperature is the fastest way to lose cycle life.
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.

Price and availability

Simpliphi ESS 4.9 kWh Battery is listed at $ 3,999 (USD). 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 your country: warranty cover on solar hardware is normally honoured through the channel you bought from, so confirm who supports Simpliphi locally before ordering.

Simpliphi ESS 4.9 kWh Battery — frequently asked questions

How much does Simpliphi ESS 4.9 kWh Battery cost?

Simpliphi ESS 4.9 kWh Battery is listed at $ 3,999 (USD). 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 ESS 4.9 kWh Battery?

Simpliphi ESS 4.9 kWh Battery is a Simpliphi product, listed under batteries with model reference SPHI-B-4.9. The Simpliphi brand page lists the rest of its range so you can compare across the catalogue.

Is Simpliphi ESS 4.9 kWh Battery right for my system?

That depends on what it has to connect to. For a battery, check communication protocol (CAN or RS485) for talking to the inverter, nominal capacity in ampere-hours (Ah) or kilowatt-hours (kWh) and usable capacity after depth of discharge — LiFePO4 typically allows 80–100%, lead-acid closer to 50% against the rest of your equipment before price enters the decision. 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.

Where can I buy Simpliphi ESS 4.9 kWh Battery?

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 — buying in-channel is what keeps the manufacturer's warranty valid.

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