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Whole Home Battery Backup Systems for Dealers, Installers & Residential Backup Projects

Reliable Whole Home Backup Power When the Grid Goes Down.

Scalable LiFePO4 home battery backup systems for residential backup projects, solar installers and home energy distributors. Support essential loads, critical circuits or full whole-home backup with expandable battery capacity and inverter options.

  • LiFePO4 · 6000+ cycles
  • Automatic transfer (UPS)
  • Pure sine wave 3kW–5kW
  • 5kWh–28.67kWh scalable
  • OEM/ODM & bulk supply
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View Product Matrix

5–28.67kWh

Scalable Capacity

3–5kW

Pure Sine Inverter

6000+

Cycle Life

5-Year

Warranty

Automatic Transfer

UPS-Grade Switchover

Expandable Capacity

Stack to 28.67kWh+

BMS Protection

12-Layer Safety Logic

UL · CE · UN38.3

Pre-Integrated Certifications

Why Whole Home Backup Is Different

What Installers & Dealers Actually Have to Solve

A whole home battery backup system has to handle real-world residential loads — automatic switchover, motor startup surges, certified documentation and a clear way to size capacity that won't break the homeowner's expectations.

Power Switching Experience

Homeowners won't replug devices during an outage. Installers need automatic transfer, critical-load prioritization and UPS-grade switchover.

Inverter Power Not Enough

Dealers don't just buy kWh — they buy kW. Fridges, water pumps, AC and tools all have high startup surges that an undersized inverter trips on.

Backup Duration Unmanaged

Customers often think "whole home backup" means unlimited power. Pages should guide a load list + target runtime — not promise fixed hours.

Project Delivery Risk

Installers care about certifications, shipping, after-sales, commissioning documentation, batch consistency and fault response.

What "Whole Home Backup" Really Means

Three Backup Levels, Three Conversations With the Homeowner

"Whole home backup" gets used loosely. We separate it into three clear levels — so dealers and installers can size correctly, set the right customer expectation, and quote with confidence.

Critical Loads Backup

Essentials Only

5 – 10 kWh

Routers, lights, refrigerator, CPAP, phones — the smallest list of "must-stay-on" loads during an outage.

  • Wi-Fi router & networking
  • Lighting & phone charging
  • Refrigerator
  • Medical devices · CPAP
Essential Home Backup

Daily Living

10 – 15 kWh

Essentials plus kitchen appliances, water pump, fans and the small loads that make a multi-day outage livable.

  • All critical loads
  • Microwave / coffee / induction
  • Water pump · fans
  • Garage door · security
Whole Home Backup

Most Loads, Most Hours

15 – 28.67 kWh+

Aimed at running most of the home including HVAC and larger appliances. Requires a 5 kW inverter and stacked battery expansion.

  • All essential loads
  • Air conditioning / heat pump
  • Electric oven / dryer*
  • Larger water heater*

Recommended Products

Match the System to the Backup Level

Five core SKUs cover the most common whole-home backup scenarios — from a basic 5 kWh all-in-one to a 28.67 kWh project-grade system for larger residences and weak-grid regions.

5kW Stackable Battery

5kW Stacked Home Batteries

Rated Power
5kW
Capacity Battery
5kWh
Learn More
Get Quote
48V100Ah Solar Battery

48V 100Ah Home Battery

Voltage
51.2V
Capacity Battery
5.22kWh
Learn More
Get Quote
48V200Ah Solar Battery

48V 200Ah Home Battery

Voltage
51.2V
Capacity Battery
10.44kWh
Learn More
Get Quote
48V300Ah Solar Battery

48V 300Ah Home Battery

Voltage
51.2V
Capacity Battery
15.36kWh
Learn More
Get Quote
5kW solar inverter with battery | All in one Home Battery Backup

3kW All in One Home Backup Battery

Rated Power
3kW (Peak 7kW)
Battery Capacity
5kWh
Learn More
Get Quote
5kW solar inverter with battery | All in one Home Battery Backup

5kW All in One Home Backup Battery

Rated Power
5kW (Peak 10kW)
Battery Capacity
5kWh
Learn More
Get Quote

7.2kW All in One Ultra-thin Wall-Mounted Battery

Rated Power
7.2kW
Battery Capacity
7.68kWh
Learn More
Get Quote

6kW 16.07kWh All IN ONE ESS

Rated Power
6kW
Battery Capacity
16.07kWh
Learn More
Get Quote
48v628ah-all-in-one-home-energy-storage-system

6kW 32.15kWh All IN ONE ESS

Rated Power
6kW
Battery Capacity
32.15kWh
Learn More
Get Quote

12kW 16.07kWh All IN ONE ESS

Rated Power
12kW
Battery Capacity
16.07kWh
Learn More
Get Quote

12kW 32.15kWh All IN ONE ESS

Rated Power
12kW
Battery Capacity
32.15kWh
Learn More
Get Quote
12kW Hybrid Inverter
Hybrid

12kW Hybrid Inverter

Max IO
12kW
Recommended PV Power
16kW
Learn More
Get Quote

Backup Load Planning Matrix

Continuous Power vs Startup Surge

The most common sizing mistake is choosing on capacity alone. Each appliance has a continuous draw and a startup surge. Installers should map both before recommending an inverter and battery configuration.

Refrigerator

Continuous 100–200W · Surge 600–800W

LED Lighting

Continuous 5–15W ea · Surge negligible

Wi-Fi / Router

Continuous 10–30W · Surge ~50W

CPAP

Continuous 30–60W · Surge ~100W

Water Pump

Continuous 500–1000W · Surge 1500–3000W

Air Conditioner

Continuous 1000–2000W · Surge 2500–4000W

Microwave / Induction

Continuous 800–1500W · Surge 1500–2000W

Ventilation Fan

Continuous 30–100W · Surge ~200W

Automatic Transfer & Inverter Power

Switchover & Surge — Where Most Systems Fail

A backup that doesn't switch automatically isn't a backup — and an inverter that trips on the first refrigerator startup isn't usable. These are the two technical pillars of a whole-home backup that customers feel directly.

UPS-Grade Switchover

Pure sine wave · automatic grid-battery transfer

Built for Real Residential Loads

Our all-in-one and stackable systems handle automatic grid-to-battery transfer, pure sine wave output for sensitive electronics, and 3kW or 5kW continuous inverter power with surge headroom for motors.

Automatic Transfer (UPS)

Grid loss triggers instant battery output. No replugging, no manual breaker switching.

Pure Sine Wave Output

THD < 3% — safe for refrigerators, computers, medical equipment and modern induction loads.

3kW / 5kW Inverter

Continuous power with surge headroom for refrigerators, water pumps and small AC units.

Critical-Load Panel Ready

Compatible with a critical-loads sub-panel for tiered backup priority.

Expandable Battery Architecture

Start Small, Scale With the Project

Capacity needs grow. Our 48V wall-mounted batteries support up to 6-unit parallel connection, and our 5kWh–25kWh stackable system lets installers add modules as load expands — without replacing the inverter.

One Path From 5 kWh to 28.67 kWh+

A homeowner starts with critical-loads backup, then adds capacity for whole-home coverage as the project budget grows or appliances are added. The same inverter platform, the same BMS, the same commissioning playbook.

Stackable 5 – 25 kWh

Modular floor-standing system with built-in inverter — add capacity as the home's load grows.

Up to 6-Unit Parallel

48V wall-mounted batteries can be paralleled up to 6 units for higher capacity.

BMS Communication

Master-slave logic and CAN/RS485 protocol for clean multi-module operation.

Project Stock Continuity

Same SKU available for follow-on orders — important for dealer fleet consistency.

5kWh – 28.67 kWh

Modular expansion path with the same inverter platform

OEM / ODM Customization

Your Brand, Your Whole-Home Backup System

Factory-direct OEM/ODM for dealers, installers and residential project clients — branded units, regional plugs and voltage, multi-language manuals and project-ready packaging. 24-hour response, 4-step process from spec to mass production.

Custom Capacity · Branding · Plugs

For dealers, installers and residential backup project clients

From Project Spec to Mass Production in 4 Steps

Dealers and installer brands get a single-point-of-contact OEM process — branding, certification documentation, batch consistency and project supply all handled in-house.

STEP 01

Consultation

24-hour response. We map your target market, load profile and certification requirements.

STEP 02

R&D Design

Industrial design and electrical engineering tailored to local voltage and installer requirements.

STEP 03

Certification

UN38.3, UL, CE, FCC and country-specific certifications prepared for your import market.

STEP 04

Mass Production

15 automated production lines · 500,000+ units annual capacity · 99.89% on-time delivery.

Logo & enclosure color
Regional plugs & voltage
Multi-language manual
IoT & comm protocols
Project & retail packaging

Quality Assurance

Engineered for Daily Residential Cycling

Whole-home backup runs every outage, every cycle, every year for a decade. Every TURSAN unit passes a closed-loop quality system — IQC, IPQC and OQC three-gate control, 100% burn-in testing, and full batch traceability through MES.

Battery Safety

BYD-grade LiFePO4 cells with A+ safety rating and active thermal management — pin-prick tested.

BMS Logic

12-layer protection algorithm with real-time monitoring, balancing and IoT-ready communication.

Pure Sine Wave

Clean AC output (THD < 3%) — safe for fridges, computers and modern home electronics.

6000+ Cycles

10+ year design life with 5-year warranty. Compatible with daily backup or TOU cycling.

Global Certifications & Standards

Pre-Integrated for Global Market Access

UN38.3, MSDS, UL, CE, FCC, IEC and RoHS — full certification documentation prepared from day one, so your branded whole-home backup system clears customs and reaches dealers on schedule.

UN38.3

UN38.3 · Lithium Battery Transport

MSDS

MSDS · Material Safety Data Sheet

UL

UL 1973 · Battery Safety Standard

DTI TEST

Test Report · Third-Party Qualification

UN38.3

Transport

MSDS

Material

UL 1973

Safety

CE

EU Conformity

FCC

EMC

IEC

International

RoHS

Substance

Whole Home Backup FAQ

Questions From Dealers & Installers

The questions we hear most from home energy distributors, solar installers and residential backup project buyers.

What size battery backup system is needed for a whole home?

It depends on which loads you want to keep online and for how long. A critical-loads kit (router, lights, fridge, CPAP) typically suits 5–10 kWh. An essential-home backup (adds kitchen appliances, water pump, fans) usually fits 10–15 kWh. A whole-home backup that includes HVAC and large appliances commonly needs 15–25 kWh or more with stackable expansion. We don't quote a fixed runtime without your load list — send your loads and target runtime and we'll calculate the right configuration.

Yes. Our all-in-one and stackable systems support automatic transfer between grid and battery — when grid power is lost, the inverter switches to battery output without manual intervention. UPS-grade switchover protects sensitive equipment such as computers, network gear, refrigerators and medical devices.

Yes — provided the inverter is sized for the continuous load and the surge load. Refrigerators and water pumps have high startup surges; a 3 kW or 5 kW pure sine wave inverter handles most residential motor loads, while larger HVAC requires a 5 kW+ all-in-one or stacked system. We'll confirm the right inverter rating based on your appliance list.

Our 48V wall-mounted batteries support parallel connection of up to 6 units, and our 5kWh–25kWh stackable system allows modular capacity expansion at any time. This lets a homeowner start with a base system and add capacity as needs grow — without replacing the inverter or the existing modules.

Our home backup systems are pre-integrated with UN38.3, MSDS, UL, CE, FCC, IEC and RoHS certifications. Full documentation is provided to dealers for customs clearance and local market access. Region-specific certifications can be supported on request.

Yes. As a factory-direct OEM/ODM manufacturer, we support custom logo, enclosure color, packaging, plug standards, manual language and IoT/communication protocols. Bulk supply for residential backup projects is supported with project-priority production and 99.89% on-time delivery.

Send Your Load List for a Backup Plan

Get a Whole-Home Backup Recommendation

Tell us the loads you need to back up, target runtime and market — we'll return a recommended system, sizing rationale and wholesale pricing within 4 hours.

  • Capacity & inverter sized to your load list
  • Automatic-transfer system with UPS switchover
  • Expandable to 28.67 kWh+ with same platform
  • UL · CE · UN38.3 · FCC · IEC · RoHS documentation
  • 4-hour response, factory-direct pricing

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