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Gobel Power GP-SR1-18K-PC 18kWh 51.2V 356Ah LiFePO4 Server Rack Battery for Home Solar Energy Storage

8000+ Cycles | 18kWh Solar Battery Storage | Backup Power for Home

Model: GP-SR1-18K-PC

Delivery Time:
From China Warehouse: 50-60 days.
Warranty:
30 days free return to local warehouse.

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Traditional: €4,118.40
€ 3570.00
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    Gobel Power GP-SR1-18K-PC 18kWh 51.2V 356Ah LiFePO4 Server Rack Battery for Home Solar Energy Storage

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    Gobel Power · Server Rack Battery

    18 kWh of dependable power.
    Built to scale.

    The GP-SR1-18K-PC is a 51.2V LiFePO4 server rack battery with 18.227 kWh of usable energy — a low-voltage energy storage system built for solar, home backup, and off-grid power. Start with one module, grow to over a megawatt-hour.

    Scalable energy storage

    Start with one.
    Grow to a megawatt-hour.

    Each 51.2V battery module delivers 18.227 kWh of usable energy. Add modules in parallel and your home energy storage system grows with you — no redesign, no re-engineering.

    • 18.227 kWh usable energy per module
    • Parallel up to 63 modules — 1148 kWh total
    • 200A / 10 kW continuous per module, up to 12600A / 645 kW
    • 356Ah prismatic LiFePO4 cells
    Single server rack battery module and a full rack of stacked modules
    Internal detail of lithium iron phosphate cells, BMS board, and active balancer
    Safety first

    Looks after itself.

    Lithium iron phosphate chemistry, a 200A battery management system (BMS), and a 2A active balancer work together so a bad charge or a hot day never becomes a problem.

    • 200A BMS with continuous monitoring
    • 2A active balancer keeps every cell in step
    • Programmatic cell sorting for matched cells
    • Structural and electrical safety built in
    • CE and UN38.3 certified
    Plugs right in

    Works with the inverters you already trust.

    Out of the box, this LiFePO4 battery talks to more than 20 leading inverter brands. RS485, RS232, CAN, and WiFi keep it in the loop whether you're on-grid or off-grid.

    • Compatible with Deye, GoodWe, Growatt, SMA, Victron, Solis, Schneider, Luxpower and more
    • RS485 / RS232 / CAN / WiFi communication
    • Network cable (BMS to inverter) included
    • RS232 cable for PC software included
    Battery module connected to a hybrid inverter, communication ports highlighted
    Rack-mounted battery module in a standard 19-inch server rack, with a person for scale
    Easy to live with

    Set it up once.
    Forget it's there.

    Floor- or rack-mounted in a standard 19-inch server rack footprint, the module is compact enough to tuck away and quiet enough to disappear into the background.

    • Floor or rack-mount installation
    • 884.69 × 482.8 × 240 mm footprint
    • 145 kg, IP20 enclosure
    • Operates from −20 °C to +60 °C

    Built for every
    way you use it.

    From home energy storage and solar self-consumption to full off-grid independence, the GP-SR1-18K-PC fits.

    Home Energy Storage
    Solar Energy Storage
    On-Grid + Backup
    Off-Grid
    Commercial / Industrial
    18.227 kWh
    Usable energy
    51.2V
    Nominal voltage
    10 kW
    Continuous power
    95%
    Round-trip efficiency

    Power that's ready
    when you are.

    Backup power, solar self-consumption, or full off-grid independence — the GP-SR1-18K-PC is a dependable LiFePO4 energy storage system that grows with you, backed by a 5-to-10-year warranty.

    18.227 kWh · 51.2V · 356Ah LiFePO4 | CE / UN38.3 · 5–10 Year Warranty · Up to 63 Modules
    Specifications (Verified)
    Gobel Power technician has verified the accuracy of following technical parameters according to manufacturer's data sheet. Gobel Power gurrantees the product is authentic.

    Model:
    GP-SR1-18K-PC
    Battery Type:
    Prismatic LiFePO4
    Nominal Voltage:
    51.2V
    Nominal Capacity:
    356Ah
    Total Energy:
    18kWh
    Battery Cells:
    16S1P 356Ah Cells
    Max Charge Current:
    200A
    Max Discharge Current:
    200A
    Charge Cut-off Protect Voltage:
    58.4V
    Disharge Cut-off Protect Voltage:
    40V
    Communication Port:
    RS485, RS232, CAN,WIFI
    Parallel Connection:
    Max 63 Units in Parallels
    Series Connection:
    No
    Cycle life:
    8000 Times
    Size:
    448 × 773 × 241 mm
    Weight:
    145kg
    Cooling:
    Natural cooling
    Environment:
    Indoor
    Mounting options:
    Sever Rack, Floor
    Operating Temperature (℃):
    -20℃~+60℃
    Inverter Compatibility:
    Yes
    Active Balancer:
    2A Active Balancer
    Maximum Elevation:
    4000m
    Warranty:
    10 Years

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    Frequently Asked Questions

    How much energy does this 51.2V 356Ah LiFePO4 server rack battery provide, and how far can it scale?

    Each GP-SR1-18K-PC module delivers 18.227kWh of usable energy (51.2V nominal, 356Ah prismatic LiFePO4 cells) with 200A / 10kW continuous power and 95% round-trip efficiency.

    Scaling is plug-and-play:

    • Parallel up to 63 modules — a total of 1,148kWh (over a megawatt-hour)
    • Combined output up to 12,600A / 645kW across the bank
    • No redesign or re-engineering — just add modules and the home energy storage system grows with you

    Perfect for home energy storage, solar self-consumption, on-grid + backup, and full off-grid independence.

    Which inverters is this 18kWh LiFePO4 battery compatible with?

    Out of the box, this LiFePO4 battery talks to more than 20 leading inverter brands over RS485 / RS232 / CAN / WiFi:

    • Deye
    • GoodWe
    • Growatt
    • SMA
    • Victron
    • Solis
    • Schneider
    • Luxpower
    • And more

    Even the cables are in the box: the network cable (BMS to inverter) and RS232 cable for PC software are both included. Wire it up, and the system is live — on-grid or off-grid.

    Is this home solar energy storage battery safe?

    Yes — safety is layered at every level:

    • Lithium iron phosphate (LiFePO4) chemistry — inherently thermal-stable, no cobalt, no thermal runaway
    • 200A BMS with continuous monitoring of voltage, current, and temperature across all cells
    • 2A active balancer keeps every cell in step, cycle after cycle
    • Programmatic cell sorting — only matched cells make it into a pack
    • Structural and electrical safety built in
    • CE and UN38.3 certified

    A bad charge or a hot day never becomes a problem.

    What are the dimensions, weight, and installation options for this 19-inch rack battery?

    Physical specs:

    • Footprint: 884.69 × 482.8 × 240 mm — compact enough to tuck away
    • Weight: 145 kg
    • IP20 enclosure, operating range -20°C to +60°C
    • Floor- or rack-mounted in a standard 19-inch server rack footprint

    Set it up once and forget it's there — it's quiet enough to disappear into the background, with no fans or maintenance required.

    What warranty does this 51.2V LiFePO4 energy storage system come with?

    The GP-SR1-18K-PC is backed by a 5-to-10-year warranty (exact term depends on your region and product registration). Combined with 356Ah prismatic LiFePO4 cells rated for thousands of cycles and a 95% round-trip efficiency, it's a dependable low-voltage energy storage system designed to grow with you — from a single 18.227kWh module to a 1,148kWh commercial installation.

    Shipping & Payment

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    Related Downloads

    Datasheet
    Inverter Compatible List
    Resources
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    Gobel Power GP-SR1-18K: 18.2kWh High-Capacity LiFePO4 Server Rack Battery

    Looking for a reliable, high-capacity solar energy storage solution? The Gobel Power GP-SR1-18K is a next-generation 51.2V 356Ah (18.2kWh) LiFePO4 server rack battery designed for off-grid homes, commercial power backup, and renewable energy systems. Featuring premium Grade-A LiFePO4 cells, the GP-SR1-18K delivers exceptional thermal stability, long cycle life, and high discharge efficiency. Built with an advanced Pace BMS and integrated Wi-Fi remote monitoring module, it allows seamless real-time tracking of cell voltages, temperatures, and battery health via the Gobel VRM app or the built-in LCD screen. Its compact floor-standing cabinet design fits easily into standard server rack setups, serving as a drop-in replacement or capacity upgrade for 314Ah batteries. Fully compatible with top tier off-grid and hybrid inverters (Victron, Deye, Sol-Ark, Megarevo, and more). Power your independence with clean, safe, and efficient energy storage!

    About Us

    Gobel Power was established in 2012 and is based in Shenzhen, China. Our products and services include wholesaling cylindrical & prismatic LiFePO4 and Lithium Ion battery cells, producing lithium battery packs and providing battery solutions. Our products are mainly used in solar energy storage, electric bikes, electric scooters, electric motorbike, boats, forklifts, sweepers, golf carts, and recreational vehicles.

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