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25hkW Solar Stacked Lithium Battery

25kW Solar Stacked Lithium Battery Manufacturer

Stackable Home Solar Energy Storage System

5kWh Per Layer · Scales to 25kWh (5 layers)

We are a direct manufacturer of stackable home solar energy storage systems, providing high-power, plug-and-play stacked lithium battery solutions for residential whole-home backup, hybrid solar self-consumption, and off-grid living.

 

Built on LiFePO4 chemistry and a rugged modular structure, this system stacks up to 5 layers to reach 26kWh energy, with real-time status tracking through Bluetooth / Wi-Fi monitoring. OEM/ODM programs are available for global distributors and solar EPC partners.

 

Best for: large homes, multi-AC households, villas, small commercial backup (light loads), off-grid cabins, installers who want fast deployment and easy capacity expansion.

Battery Manage System
Overcurrent Protection
Over-discharge Protection
Low power Protection
High-Low Temp Protection
Overload Protection
Short circuit Protection
Disconnection Protection
Universal 5 hole
US-JP std
Universal std
EU std
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British std
Get an up-to-date quote with additional free information to download!

Key Product Highlights

  • 5kW AC Rated Output Power (pure sine wave)
  • 26.114kWh Battery Capacity for extended backup runtime
  • 5.2kWh per layer modular battery stacks (expand on demand)
  • LiFePO4 cells with 6,000+ cycle life class
  • Off-Grid / Grid-Tied charging and discharging
  • Bluetooth / Wi-Fi app monitoring (battery stack monitor)
  • OEM/ODM supported with advanced production lines

Off-Grid & Hybrid Solar Operation

Want to go off-grid? It’s simple:
LOADING...
GRID STABLE
Supports simultaneous charging and discharging, maximizing solar self-consumption and energy independence.

Core Advantages

Quick Installation

Stackable design simplifies wiring and significantly reduces technician time onsite.

Smart Monitoring

App-based monitoring improves service efficiency and user experience.

High Cycle Life

Premium LiFePO4 cell platform supports long-term daily cycling.

Advanced Structure

Optimized internal layout increases density within a consistent footprint.

Deep Customization (OEM/ODM)

Factory-direct support for branding, packaging, documentation, and configuration.

99.99% Device Compatibility

Designed to integrate smoothly into most energy storage ecosystems.

Advanced Battery Management System (BMS)

A high-power system needs reliable protection. The built-in BMS provides:
BMS for 5 kW battery stacks
  • Overcurrent Protection
  • Over-discharge Protection
  • Low Power Protection
  • High / Low Temperature Protection
  • Overload Protection
  • Short-Circuit Protection
  • Automatic Disconnection Protection
This helps stabilize the battery stack during heavy loads, motor starts, and extreme temperatures.

Mobility + Emergency-Ready Design

Mobility + Emergency-Ready Design

easy to move indoors/outdoors

Built for power outages

stable backup power without complicated rewiring

Flexible use

stack your batteries anywhere you need energy resilience

Applications

25kW Home Stacled Solar Battery

Whole-House Power Supply (High-Load Homes)

With 5kW output, the system supports demanding homes that want fewer compromises during outages—more circuits can remain active, including air conditioning and larger household loads.

25kW Off-Grid Solar Stacked Battery

Off-Grid / Hybrid Solar

Connect PV → charge battery stacks → power loads day and night. Supports charging and discharging simultaneously, improving solar self-consumption.

25 kW On-Board Power Station for Emergency Rescue Vehicles

Emergency Backup + Flexible Use

Rugged design for emergencies. If your configuration includes handle + rollers, it’s easy to reposition for temporary power needs.

OEM & ODM Support

OEM/ODM Capabilities (For Distributors & Brands)

We support deep customization for power stack battery programs:

Enclosure and structural customization
Branding, labeling, and packaging design
Wiring harness / connector / output options (project-based)
Manuals, marketing assets, and dealer kit support
Automated Production Line for Solar Battery Pack

Parameters

Battery Battery Capacity26.1kWh
Battery Rated Voltage51.2V
Battery Cycle LifeLiFePO4, ≥ 6000 cycles, 70% SOH, 25°C
Battery Charge/Discharge Current100A
Battery Dimensions600×430×150 mm
Battery Weight46.9 kg
Inverter Rated AC Output Power5kW
Inverter AC Output Voltage220V (Optional)
Inverter AC Output Frequency50Hz (Optional)
Inverter AC Rated Input Voltage220V (Optional)
Inverter AC Input Power3000W
Inverter Grid TypeOff-grid/ On-grid
Inverter DisplayLCD
Inverter CommunicationRS485
Inverter Operating Temperature-10°C ~ 60°C
Inverter Dimensions600×430×204 mm
Inverter Weight16.4 kg
Base Dimensions600×430×152 mm
Base Weight9.3 kg
Certificates

Certificate

Pre-integrated UN38.3, MSDS, UL, CE, FCC, IEC, RoHS and other certifications to shorten market access cycles.
MSDS
UN38.3
UL
UL
Identification and Classification Report for Air Transport of Goods
Report for Safe Transport of Goods
Material Safety Data Sheet
UN38.3

About us

Founded in 2016 · Headquartered in China

A decade of energy storage manufacturing excellence.

Who We Are

Residential Solar Energy Storage Battery Solution Manufacturer

TURSAN is a high-tech enterprise integrating R&D, manufacturing, and global sales of lithium battery–based energy storage systems. Founded in 2016, we operate a 20,000+m² production facility producing reliable LiFePO4 power solutions for residential, commercial, and outdoor applications.

 

Through a strategic partnership with BYD, we co-manufacture larger-capacity, safer, and more environmentally friendly portable power stations and home battery backups. Today we serve global brand owners, distributors, EPC contractors, and project developers in over 60 countries — saving OEM clients up to 20% in annual sourcing cost while meeting the toughest international safety standards.

Home Battery Backup
Portable Power Station
Industrial BESS
Mobile EV Charging
LiFePO4 Battery
Off-Grid & Hybrid Inverter

OEM&ODM Process

Phase 1

Confirm Requirements and Finalise the Solution

We collect all customer specifications: voltage, capacity, dimensions, communication protocol, etc. Then we decide if it is a pure OEM job (build exactly to your drawings) or an ODM job (we provide the design). We issue a clear BOM (bill of materials) and 2D/3D drawings for both parties to sign off, avoiding any later misunderstandings.

Phase 1
Phase 2
Phase 2

Procurement and Incoming Inspection

We purchase all materials according to the BOM: cells, enclosure, brackets, screws, wiring, BMS boards, etc. When goods arrive, we do sampling or 100% inspection. For cells, we measure voltage, internal resistance and check appearance. For structural parts, we check dimensions and hole sizes. Any non‑conforming items are rejected and never go into our warehouse.

Phase 3

Cell Sorting and Matching

We group cells from the same batch by voltage and internal resistance values. We then match cells with the closest parameters into one set (for example, if a string uses 4 cells, the voltage and resistance differences among those 4 must stay within our set limits). This directly affects how long the battery pack will last without performance decay.

Phase 3
Phase 4
Phase 4

Laser Welding and Module Assembly

We fix cells into holders, then laser‑weld the tabs (connectors). We do pull‑force tests on sample weld spots to check strength. After that, we fasten the welded sub‑modules into the enclosure or tray, using torque‑controlled tools to apply the correct tightening force.

Phase 5

BMS Installation and Wiring Connection

We mount the main BMS and slave boards in their designated positions, then plug in all voltage sampling wires and temperature sensors. We always have a two‑person verification of the wiring sequence – this prevents reverse connections that could burn the boards when we power up.

Phase 5
Phase 6
Phase 6

First High‑Voltage Safety Test

We apply high voltage between the positive/negative terminals and the enclosure to measure insulation resistance and withstand voltage. We check for any leakage or breakdown. If this test fails, the module goes back for rework immediately – it does not move forward.

Phase 7

High‑Temperature Standing and Self‑Discharge (K‑Value) Check

We place the modules in a 45 °C room for 24–48 hours. We measure voltage before and after the standing period, then calculate the daily voltage drop (K‑value). Units with excessive drop are rejected because they indicate internal micro‑shorts that could cause early failure later.

Phase 7
Phase 8
Phase 8

Charge/Discharge Aging and Capacity Calibration

We connect the modules to charge/discharge equipment and run several full cycles at the current specified by the customer. During the process, we record actual discharge capacity, charge/discharge efficiency, and the temperature/voltage differences among individual cells. If all data stay within our acceptance limits, we calibrate the final rated capacity. If not, we isolate and analyse the failed units.

Phase 9

Final Inspection, Labelling and Packaging

We re‑measure total voltage, internal resistance and insulation performance. We check appearance for scratches, gaps, or damaged screws. We attach a permanent nameplate (with serial number), UN38.3 hazardous‑goods label, and all required operation warning labels. Then we package the battery with foam or cardboard for shock protection, as per customer requirements, and record the final weight.

Phase 9
Phase 10
Phase 10

Shipment and Document Handover

We verify the shipping quantity, address and consignee. We prepare all accompanying documents: factory test report, MSDS, UN38.3 test summary, and transport condition certificate. We arrange pickup with our logistics partner, and after dispatch we send the tracking number and estimated arrival time to the customer.

Quality Control

Frequently Asked Questions (FAQ)

The 5kW is the maximum power output, while runtime is determined by battery capacity (kWh) and the average load. Your system capacity is 26.114kWh, so at a 2kW average load it may last roughly 10–12 hours, while at 5kW it may last around 4–5 hours. Actual runtime varies with inverter efficiency, temperature, and surge loads.

For many homes, a 5kW system can power essential loads, but whether it “runs the whole house” depends on peak demand and how many large loads (AC, ovens, pumps) are used simultaneously. Many projects use priority circuits to guarantee critical loads remain powered during outages. For higher power needs, consider OEM/ODM customization.

If you mean a 5kW PV array, panel count ≈ 5,000W ÷ panel wattage. With 400W panels that’s about 13 panels; with 550W panels about 9–10 panels. Roof space, shading, orientation, and local interconnection rules will influence final design.

Cost varies widely by market, on-grid vs hybrid design, equipment brand level, and installation complexity. A 5kW PV-only system and a 5kW PV + storage system are priced very differently because batteries and backup hardware add major cost. The most accurate method is a configuration quote based on PV size, battery kWh (e.g., 25kWh), certification requirements, and installation scope.

Daily production depends on peak sun hours and system losses. As a rough estimate: 5kW × 4–6 sun hours = ~20–30 kWh/day before site-specific adjustments. Shading, tilt/azimuth, and temperature can reduce real output.

Runtime depends on energy capacity (kWh) and household load. Many homes average 1–3kW overnight (higher with AC), so a ~20kWh battery might cover much of the evening and nighttime. For heavy cooling loads, runtime can be significantly shorter.

Panels increase energy generation, while batteries increase nighttime usability and backup resilience. If your batteries rarely reach full charge, add more panels first. If your batteries fill early and you still buy grid power at night, add more battery capacity.

In most cases, yes—30kW is a high residential power level. Whether it’s needed depends on simultaneous loads, AC tonnage, and whether you run electric cooking, water heating, or EV charging at the same time. Proper load calculations are the best way to confirm.

On-grid PV cost depends on local labor, equipment, and permitting. A hybrid system with storage and backup capability costs more due to batteries, transfer hardware, and additional protection components. For accurate pricing, projects are usually quoted by PV kW + battery kWh + compliance requirements.

The 40/80 rule is a longevity guideline: keeping batteries between about 40% and 80% SOC for routine daily use can reduce long-term degradation. LiFePO4 is durable, but avoiding long periods at 100% (especially in heat) can still help maximize lifespan. Many users reserve full charge for outage readiness.

Batteries store energy; they don’t create it. They can reduce costs by shifting solar energy to nighttime use, avoiding peak rates, or improving self-consumption where export rates are low. Whether batteries save money depends on your rate plan, usage profile, and system cost.

Electric bills are based on kWh, but 240V can reduce current and wiring losses for high-power loads. Many large appliances operate more efficiently or more practically at higher voltage due to lower current requirements. Final cost still depends on appliance efficiency and usage time.

Tax treatment depends on country and local rules. In some cases, medically necessary backup power or certain efficiency upgrades may qualify, but there is no universal rule. For accurate guidance, consult local tax authority resources or a qualified tax professional.

It depends on simultaneous loads and surge demands, not just square footage. Many 22kW generators can cover most household circuits if load management is used, but multiple AC units, electric cooking, and electric water heating can push demand higher. Load calculations provide the most accurate answer.

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2026 TURSAN Product Catalog

1 file(s) 12.81 MB
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5kW Stacked Home Battery Backup User Manual

1 file(s) 844.37 KB
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Partner with TURSAN, Ignite a New Chapter in Your Country's Energy Storage Business

As a professional manufacturer of solar lithium battery energy storage systems, TURSAN is dedicated to providing the global market with high-quality home energy storage batteries, inverters, portable power stations, and all-in-one storage solutions. We now sincerely invite you to become our exclusive partner in your country or region, to jointly develop the clean energy storage market and create steadily growing business value.

Market Protection

Exclusive Regional Authorization

After signing the agreement, we will cease wholesale distribution to other clients in your region, fully safeguarding your market interests.

Fast Fulfillment

Priority Order Processing & Shipping

Ensure you can respond to local demand immediately and capture time‑sensitive market opportunities.

Brand Ownership

Product Customization Support

From your first order, we can design and produce energy storage systems completely tailored to your brand.

Full Coverage

Comprehensive Product Range Suppor

From home storage and portable power to inverters and all-in-one units with built-in inverters — meeting diverse application needs.

Global Trust

Proven Success in 30+ Countries

We have already helped partners worldwide achieve measurable brand growth and increased profitability.

Partner Flexibility

Your Most Reliable Backend

Whether you are a systems integrator, electrical distributor, or building your own brand, you get stable products and flexible cooperation mechanisms.

📩 Contact us now to receive a customized partnership proposal and product information.
Let’s join hands to bring reliable power solutions to homes and businesses, and co-create a green energy future together!

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