Home Portable Energy Storage

15kWh Home Battery Backup All-in-One LiFePO4 Solar Energy Storage System

15kWh Home Battery Backup All-in-One LiFePO4 Solar Energy Storage System

The POWER 15 is a 15kWh home battery backup system that puts a 5kVA pure sine wave hybrid inverter, 15,027Wh of LiFePO4 storage and a 9,000W solar MPPT input into one floor-standing IP54 steel cabinet. Built as a whole home battery backup system for homes on unstable grids, it switches from mains to battery in 10ms and accepts grid, solar or generator input, so a household keeps running through an outage without a separate inverter or charge controller.

  • Battery Capacity :

    15027.2Wh

  • Battery Type :

    8* 587Ah

  • Battery Cell Lifespan :

    10000cycles@(25℃ ,100%DOD ,0.5P, @70%SOH)

  • Protection Level :

    IP54

  • Body Dimensions :

    L580*W330*H956 mm

  • Rated AC Input Voltage :

    230VAC

  • Output Waveform :

    Pure Sine Wave
Inquiry now
General Catalog
Products Description
 
  1. Providing 15kWh battery storage in a single cabinet, the POWER 15 delivers 5kVA with 208/220/230/240V selectable output and total harmonic distortion at or below 3% on linear loads, backed by 102–120% overload for a full minute so compressors and pumps start without tripping. As an all-in-one home energy storage system it replaces the separate battery bank, hybrid inverter and charge controller that a conventional install needs.
  2. For homes facing outages, load shedding schedules or no grid at all, it doubles as a home emergency power system and a complete off-grid solar system with battery storage: the MPPT accepts a 9,000W array across a 60–450V window, the AC input takes 90–280V from a weak supply or a generator, and the LiFePO4 pack is rated for 10,000 cycles at 100% depth of discharge.
 Xiamen 9Sun Solar Technology Co., Ltd is located in Xiamen, China's beautiful seaside city, We specialize in design,research and development, producing and sales of solar PV related products. We have an experienced and professional team in research and design of photovoltaic products, persist in the principle of "Quality-oriented'、and "Integrity first", and provide customers with efficient, energy-saving, high-quality products and professional service in a timely manner. A full range of solar mounting systems, including solar ground mounting system, solar roof mounting system, solar farm mounting system, solar carport mounting system, solar floating mounting system, solar ground screw and so on, are provided by 9Sunsolar.
 More products

 

Product Advantages

  • 15kWh of LiFePO4 storage. Eight 587Ah cells at 25.6V give 15,027Wh — enough to carry a whole household through an evening peak, a scheduled outage, or a full night of air conditioning without touching the grid.
  • 5kVA pure sine output, 4kVA from the battery alone. Rated 5kVA when solar is contributing and 4kVA on battery-only operation, with selectable 208/220/230/240V output and THD ≤3% on linear loads — clean enough for compressors, pumps and electronics on the same circuit.
  • 9,000W of solar input on one MPPT. A 500V open-circuit ceiling, 27A input current and a 60–450V tracking window let you land a large array on a single input at 99.5% MPPT efficiency — no second charge controller.
  • Built for unstable grids and generators. AC input accepts 90–280V in APP/generator mode (170–264V in UPS mode) at power factor ≥0.99, so brownouts, voltage sag and a backup generator all work without a separate transfer switch.
  • 10ms switchover, >99.5% mains efficiency. In UPS mode the load moves to battery in 10ms; in generator mode, 20ms. On mains the unit passes power at over 99.5% efficiency and idles at under 35W.
  • IP54 cold-rolled steel cabinet. A sealed, forced-air-cooled steel enclosure rated IP54 for dust and water spray — it can sit in a garage, covered porch or plant room rather than being confined to a dry indoor corner.
  • 10,000 cycles to 70% SOH. Rated at 100% depth of discharge, 0.5P, 25°C. Daily full cycling is within spec, not an edge case.
 Packaging & Delivery
 
 
 FAQ
 
 Q1:How long will a 15kWh battery last during a power outage?
 A1:Around 15 hours at 1,000W of household load, about 37 hours at 400W (fridge, lights, internet), roughly 6 hours with a fridge and one air conditioner running, and about 3.7 hours at the 4,000W battery-only limit.
 Q2:Is the output 5kVA or 4kVA? 
 A2:Both, in different conditions. Rated output is 5kVA when solar is contributing or the unit is running PV-only; on battery alone it is 4kVA. Both are continuous, with 102–120% overload for one minute.
 
 Q3:Can it run without solar panels? 
  A3:Yes. The AC input (90–280V in APP/generator mode, 170–264V in UPS mode) charges the battery from the grid or a generator. Solar can be added to the MPPT input later.
 
 Q4:Will it work with my generator?
 A4:The generator mode accepts 90–280VAC with a 20ms transfer time, and input power factor is ≥0.99. Voltage and frequency of the generator should sit within that band.
 
 Q5:Can the POWER 15 be installed outdoors?
 A5: The cabinet is IP54 (dust-protected, resistant to water spray) and forced-air cooled, so a garage, plant room or covered outdoor area is acceptable. It is not rated for direct rain or standing water.

 

 
 
 
Hot Tags : 15kWh home battery backup 15kWh LiFePO4 home battery system 5kVA hybrid inverter with lithium battery whole home battery backup system home backup power system for power outages all-in-one home energy storage system
leave a message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
submit

Related Products

3000W solar generator set up for off-grid camping and outdoor adventure
3000W 4019.2Wh Lifepo4 Solar Generator Portable Power Station For Camping And Home Use

Built around a long-life LiFePO4 battery pack rated for 11000+ cycles, this 3000W portable power station delivers pure sine wave output with a 6000W surge — enough to run refrigerators, power tools, and nearly any household appliance during an outage. Engineered for both home backup and off-grid use, it supports fast AC charging (0–80% in about an hour) and up to 1,200W MPPT solar input for quiet, emissions-free power wherever you need it. With expandable battery capacity and UPS-grade switchover, it is a scalable, generator-free energy solution trusted by campers, RVers, and emergency-prepared households alike.

Details
3600W LiFePO4 portable power station off-grid power station for RV and camping
3600w Portable Power Station With 3276wh Lifepo4 Battery For Home Backup And Emergency Power

Prepare for anything with the LFP4 3600W Portable Power Station. Its durable LiFePO4 battery, fast recharge, and scalable storage provide reliable home backup, clean RV power, and silent off‑grid energy. Charge from solar, wall, or car. Keep your fridge and devices running always.

Details
portable power station 2000w
2480Wh LIFePO4 A portable power station energy storage battery for Outdoor camping Emergency Backup Power

A Portable Power Station is a compact, rechargeable battery system that stores electricity for powering various devices and appliances on the go. It typically features multiple output ports (AC, DC, USB) and can be recharged via wall outlets, car chargers, or solar panels, making it ideal for outdoor adventures, emergency backup, and off-grid living.  

Details
portable battery power
3584wh Outdoor Camping Rechargeable Emergency Battery Portable Power Station

An emergency battery portable power station is a compact, rechargeable device designed to deliver instant electricity during power outages, natural disasters, or off‑grid situations. It stores energy in a high‑capacity internal battery and provides multiple output ports (AC, DC, USB) to keep essential devices like medical equipment, communication tools, and lighting running reliably when you need them most.

Details
high capacity portable power station 3600W 3276Wh for emergency power outage
LFP4 3600W Portable Power Station with Fast Charging for Camping

Prepare for anything. The LFP4 3600W portable power station combines a high-capacity LiFePO4 battery with fast charging and expandable capacity to deliver reliable home backup during power outages, clean energy for RV camping, and silent power for off-grid living. Recharge via solar panels, wall outlet, or car port. Keep your refrigerator, WiFi, and essential devices running — anytime, anywhere.

Details
small portable power station
Emergency Battery Portable Power Station 600W 1000W 2000W For Home Outdoor Camping RV

A Portable Power Station is a compact, rechargeable device that provides reliable electricity for powering electronics and appliances during outdoor trips, emergencies, or off-grid living. Equipped with multiple output options—including AC, DC, and USB ports—and the ability to recharge via solar panels, it offers a flexible and eco-friendly energy solution.

Details
industrial portable power station
Best Portable Power Station Home Emergency Outdoor Camping

A Portable Power Station is a compact, rechargeable device designed to deliver dependable electricity for running electronics and appliances during outdoor adventures, emergencies, or off-grid living. Featuring multiple output ports (AC, DC, USB) and solar recharging capability, it provides a flexible and environmentally friendly power solution.

Details
Custom Portable Power Station Generator
Wholesale 3000w Emergency Portable Power Station Generator Camping

A portable power station is a compact, rechargeable device that provides a reliable source of electricity for powering electronics and appliances during outdoor activities, emergencies, or off-grid living. Equipped with multiple output options like AC, DC, USB, and solar charging capabilities, it offers versatile and eco-friendly energy solutions.

Details

leave a message
leave a message
If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.
submit
Contact Us : melody@9sunsolar.com

Home

Products

whatsApp

contact