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SOFAR PowerAll and BTS 5K: Specifications and Configuration Guide
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SOFAR PowerAll and BTS 5K: Specifications and Configuration Guide

10 November 2026•3 min read

Provide technical-minded homeowners, solar shoppers, and electricians with exact, verified component specifications, stacking limits, physical dimensions, electrical ratings, and Australian installation clearance rules for the SOFAR PowerAll and BTS 5K storage platform.

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SOFAR PowerAll and BTS 5K: Specifications and Configuration Guide

A SOFAR storage proposal should identify the battery modules, control equipment and compatible inverter. This guide explains how to read those specifications and which details need confirmation for your installation.

PowerAll and BTS 5K are different labels

PowerAll describes a residential energy-storage system offering. BTS 5K identifies a battery module used within supported configurations. The battery distribution unit manages the connected battery arrangement, while the inverter handles the electrical interface with the home and solar system.

Names alone are not enough to confirm compatibility. Your quote should list the model and revision of each component and show the permitted configuration in the relevant installation manual.

BTS 5K module specifications

The following values come from SOFAR's BTS 5K V2.1 datasheet dated 6 January 2026. They are reference values for that document, not confirmation that every Australian package uses the same revision.

Parameter

Published value

Battery chemistry

Lithium iron phosphate (LFP)

Total energy

5.12 kWh

Usable capacity

4.992 kWh

Rated power

2.5 kW

Nominal voltage

400 V DC

Dimensions, width × height × depth

708 × 420 × 170 mm

Weight

50 kg

Ingress protection

IP65

Charging temperature

0°C to +50°C

Discharging temperature

−10°C to +50°C

These are module figures. They do not include the full system's inverter, distribution equipment, mounting, cable space or installation clearances. Temperature limits do not guarantee full power throughout that range.

Nominal capacity is not usable capacity

Nominal energy describes the module's stated storage size. Usable energy describes the capacity available under the manufacturer's specified conditions. Energy delivered to household appliances also reflects conversion losses, operating settings and any backup reserve.

SOFAR's older BTS documentation lists different usable-energy figures. Do not mix an older usable-capacity table with a newer module datasheet or assume one figure automatically applies to a quote.

How module counts affect nominal storage

Number of 5.12 kWh modules

Total nominal energy

1

5.12 kWh

2

10.24 kWh

3

15.36 kWh

4

20.48 kWh

5

25.60 kWh

6

30.72 kWh

This table is capacity arithmetic, not an approved wiring or stacking schedule. The inverter, battery generation and distribution arrangement determine permitted module counts, number of towers and required components. Do not assume six modules use one controller or one vertical stack.

Installation information to request

  • A model-specific equipment list and compatibility confirmation.

  • A layout including mounting support, full dimensions and service access.

  • Required separation from openings, habitable spaces and other hazards.

  • The inverter's continuous and backup output, including per-phase limits.

  • Connection approval requirements and any export limits.

  • The Australian warranty documents and monitoring arrangements.

A qualified installer should apply the current installation requirements and manufacturer instructions. This overview is not a wiring or DIY installation guide. Our switchboard upgrade guide covers another common part of the site assessment.

Monitoring, expansion and VPP use

Confirm the supplied logger, communications connection and app. For future expansion, request the supported process for the exact system. For a virtual power plant, confirm acceptance with the provider; a communications feature in a datasheet is not proof of enrolment eligibility.

Common questions

Can module power ratings simply be added together?
They can indicate potential battery-side capability, but actual system output is constrained by the inverter, control hardware, configuration and operating conditions.
Can a BTS battery connect directly to a different brand's inverter?
Only if that exact combination is approved by the manufacturers. Do not assume matching voltage establishes compatibility.
Which usable capacity belongs in a rebate estimate?
Use the eligible system's recognised usable capacity, confirmed for the exact equipment. Our battery rebate calculator is a starting estimate.

Plan your configuration

Use Design My Solar Plan to outline demand, browse our home battery storage options, or contact Kratos Energy to discuss the equipment and layout for your property.

Manufacturer references: BTS 5K V2.1 datasheet and BTS system manual.

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