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【Final Stock】48V (51.2V) 100Ah 3U Server Rack LiFePO4 Battery with Bluetooth

【Final Stock】48V (51.2V) 100Ah 3U Server Rack LiFePO4 Battery with Bluetooth

Regular price $949.99 CAD
Regular price $1,999.99 CAD Sale price $949.99 CAD
Sale Sold out
Shipping calculated at checkout.
  • Please note! The Bluetooth version of the battery you ordered does not have a 'Bluetooth' label sticker on its exterior.
  • New Customer Price: $893.00/PACK
  • Ultimate Energy For Home Storage, Off-Grid & UPS;

  • Flexible installation: supports 3U standard rack cabinet, and Wattcycle customized racks (free with purchase)

  • Extra Long Life: EV Grade-A square battery cells provide 3-5 times longer than lead-acid batteries, with a 5+2 year warranty service;

  • Extra Large Capacity: releases 5120Wh energy and supports up to 16 parallel connections(81.92 kWh energy)—automatic identification of master and slave machines;

  • Excellent Safety: built-in 100A BMS and metal structure, realizing overcharge, over-discharge, overload, overheating, low temperature and short circuit protection; with 100A continuous charge/discharge current (current peak/s);

  • Upgraded Case: metal casing has high strength, wear resistance, good heat dissipation and IP20 waterproof capability;

  • 1C Charging: support Max.1C charging, recommended to use a 58.4V 20A LFP charger (5 hours to fully charge);

  • 100% Replace Lead Acid: one is equal to 8*12V 100Ah lead-acid batteries in series in energy, but 80% lighter and 75% smaller;

  • Buy with Confidence: professionally certified and tested, provides 5+2 years warranty, free and fast delivery service, 24 customer service and lifetime technical support.Super compatibility;

  • supports CAN/RS232/RS485, and is compatible with all-in-one MPPT charger controllers on the market;

  • Easy to Monitor: displays the capacity via indicator lights; supports Bluetooth to control, and view battery SOS, alarms and operating status;

Low stock: 2 left

Description

High-Capacity Energy Storage for Demanding Applications: 

Power your critical systems with the WattCycle 48V (51.2V) 100Ah Server Rack Battery, a premium lithium iron phosphate (LiFePO4) energy solution designed for reliability, scalability, and long-term performance. Engineered for commercial, industrial, and residential energy storage, this server rack battery integrates cutting-edge technology to deliver seamless power backup, renewable energy storage, and peak load management. 

Key Features:

1.  High Energy Density & Capacity:

 ●48V 100Ah Configuration: Store up to 5.12 kWh of energy in a single unit, ideal for extended backup power or daily cycling in solar/wind systems.

 ●LiFePO4 Chemistry: Superior safety, thermal stability, and 5,000+ deep cycles at 90% DoD (Depth of Discharge) for a lifespan exceeding 10 years.

2. Server Rack Design for Scalability

 ●Modular Expandability: Stack multiple units in server rack (or compatible cabinet) to scale from 5.12 kWh to 81.92 kWh for growing energy demands. 

 ●Compatible with most inverters (48V systems) and BMS (Battery Management System) communication protocols for effortless setup.

3. BMS Protection & Bluetooth Monitoring 

 ●Multiple BMS Protection: Ensures safety with real-time monitoring of voltage, current, temperature, and state of charge (SOC). Protects against overcharge, over-discharge, short circuits, and thermal runaway. 

4. Industrial-Grade Durability

 ●Wide Temperature Range: Operates efficiently in -20°C to 50°C (-4°F to 122°F) environments, suitable for harsh conditions. 

 ●Fire-Resistant Housing: Robust, UL-certified enclosure ensures safety and longevity in commercial/industrial settings.

5. Eco-Friendly & Cost-Effective

 ●Zero Maintenance: No acid leaks, watering, or frequent replacements—reduce operational costs.

● Sustainable Power: Ideal for solar/wind storage, EV charging stations, and off-grid systems to cut carbon footprints. 

Applications:

 ●Data Centers & Telecom: Uninterruptible power supply (UPS) for critical servers and network infrastructure.

 ●Renewable Energy Storage: Store solar/wind energy for homes, farms, or micro grids. 

 ●Industrial Backup: Power robotics, manufacturing equipment, or emergency lighting. 

Why Choose WattCycle?

Our 48V server rack battery combines industry-leading safety, modular flexibility, and plug-and-play simplicity to future-proof your energy needs. Whether you’re building a solar array, securing uptime for critical infrastructure, or transitioning to clean energy, this battery delivers unmatched value and peace of mind. 

Upgrade Your Energy Storage Today—Engineered for Tomorrow’s Demands.

(Note: Confirm compatibility with your inverter/rack setup before purchase. Custom configurations available for large-scale projects.)

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Choosing the right battery bank - Off Grid Homestead

Space-Saving Rack Mount Battery Backup

Optimize your data center or home energy storage with the WattCycle 48V 100Ah 3U Server Rack Battery. Designed for standard 3U server racks, its slim profile frees up cabinet real estate while delivering full 100Ah capacity and 5.12kWh high energy. Say goodbye to bulky lead-acid modules—this lithium server rack battery backup fits neatly into solar energy storage cabinets for a streamlined setup.

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High-Performance Lithium Server Rack Battery

Engineered with EV-grade A+ cells capable of supporting up to 100A charge/discharge currents, this rack-mounted battery backup delivers robust power and exceptional longevity, offering over 5,000 cycles at 90% depth of discharge—tripling the lifespan of traditional lead-acid alternatives. At just 96.5 lbs, it provides a full 102Ah of usable capacity while ensuring reliable energy storage for mission-critical systems. Pair with theWattCycle app via Bluetoothto monitor real-time voltage, current, temperature, and remaining runtime, enabling precise energy management without compromising performance or durability.

Universal Compatibility for Server Rack Solar Battery

Seamlessly integrate your 48V 100Ah 3U battery with leading inverters and solar charge controllers. Built-in CAN/RS232/RS485 protocols ensure communication with Victron, Growatt, GoodWe, and more—no extra wiring is required.

Intuitive LED Indicators & 1C Fast Charging

Forget cryptic displays—our simple row of capacity lights tells you at a glance when you’ve hit 17%, 33%, 50%, 66%, 83% or 100%. And when you need juice fast, the 48V fast-charge support (1C rate) tops you up quickly, so your off-grid cabin or home energy system is back online in hours, not days.

Rugged Design & Safety Protection

Engineered for demanding environments, this 48V (51.2V) LiFePO4 server rack battery features an IP20, flame-retardant casing and multiple layers of protection—overcharge, over-discharge, and short-circuit. Operate confidently from –20°C to 50°C (–4°F to 122°F).

Practical Features & Accessories

A foldable handle design maximizes cabinet space and simplifies installation. At just 96.5 lbs, the unit is easy to maneuver—no heavy-lifting teams are required.

Scalable 48V Rack Mount Lithium Battery Bank

Grow your system as needs change—connect up to 16 units in parallel for nearly 81.92 kWh of expandable capacity whether you need a single 5 kW server rack battery or a parallel 48V 100Ah server rack battery bank, scale effortlessly without swapping hardware. Our parallel cabling system enables capacity upgrades in under 30 minutes.

Professional Application Scenarios

  • Data Center Backup: Replace lead-acid with a 51.2V high-voltage platform for cleaner, quieter UPS power.
  • Home & Off-Grid Solar: Partner with hybrid inverters and MPPT controllers for green energy storage.
  • Material Handling: Support electric forklifts and AGVs with high-rate discharge during peak demand.
  • Server Rack battery for RV: our 48V 100Ah server rack battery delivers industrial-grade power in RV and marine applications.

Why Choose WattCycle Over Others?

WattCycle keeps things straightforward: no extra display hardware, just proven EV A+ cells, robust BMS over-current protection, and app-based monitoring. You get a best-in-class 48V 100Ah server rack battery without gimmicks—just reliable power when you need it.

Tech Specs

Dimensions 17.7 X 17.4 X 5.2 inch | 450 X 444 X 133 mm
Weight 96.5 lbs | 43.8 kg
Battery System Capacity 5.12kWh
Cell Type Li-iron (LFP)
Cell Capacity 100Ah
Battery Cell Configuration 1P16S
Nominal Voltage 51.2V
Operational Voltage Range 46.4 ~57.6V
Scalability Max. 12 systems in parallel operation
Installation Floor stand (standard) / Wall mounted (optional)
Depth of Discharge 90%
Battery System Charge Current (Recommended) 50A
Battery System Charge Current (Max) 100A
Battery System Discharge Current (Recommended) 50A
Battery System Discharge Current (Max) 100A
Cooling Natural convention
Communication Port RS232, RS485, CAN
Protection Class IP20
Charging Temperature 32°F ~ 122°F (0°C ~ 50°C)
Discharging Temperature -4°F ~ 122°F (-20°C ~ 50°C)
Humidity 5%~95%
Max. Operating Altitude 2000m (6,562ft.)
Warranty 5 years
Certificates UL 1973

Your cart
Product Product subtotal Quantity Price Product subtotal
【Final Stock】48V (51.2V) 100Ah 3U Server Rack LiFePO4 Battery with Bluetooth
【Final Stock】48V (51.2V) 100Ah 3U Server Rack LiFePO4 Battery with BluetoothWT48V100AH100RACK-3U-US
【Final Stock】48V (51.2V) 100Ah 3U Server Rack LiFePO4 Battery with BluetoothWT48V100AH100RACK-3U-US
Regular price
$1,999.99
Sale price
$949.99/ea
$0.00
Regular price
$1,999.99
Sale price
$949.99/ea
$0.00

Customer Reviews

Based on 6 reviews
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Tim
Seems to be ok

Seems to be ok, the cells balance within 0.05v ofeach other. Watching the review it shows that the high current cutoff does not function- I see no way to set it lower, and the leads are epoxied on each battery. The BMS is different then most other batteries so it will not talk to my other AO lithium but it is working great in an open loop system so, happy with it.

M
Maria Chen
Solved Our Peak Demand Charges

My solar company installed 8 units for a commercial client. The 100% depth of discharge and 6,000-cycle lifespan crushed competitors. Client peak utility charges dropped 65%! Installation was tool-free ?slid right into standard racks. Customer service even helped tweak BMS settings remotely. Highly recommend for commercial scale.

R
Rebecca Torres
Finally, a Truly Modular Industrial Solution

As an industrial automation engineer, Ie tested dozens of rack batteries. Wattcycle stands out for TRUE modularity ?hot-swapped 4 modules in <10 mins when we needed extra capacity. The UL1973 certification gave our facility manager peace of mind. 200A continuous discharge handles our CNC machines perfectly. No cooling fans = silent operation!

T
Thomas Wright
Silent & Efficient for Off-Grid Cabin

Paired this with my Victron inverter in a remote cabin. Zero noise vs. my old gas generator! At -10C, the self-heating function kicked in flawlessly. Delivered 9.6kWh consistently (96% efficiency). Minus one star because manual could detail low-temp performance better.

D
Daniel Kim
Reliable Backup for Home Server Farm

The 5-year warranty and LiFePO4 cells convinced me. Energy density is insane ?replaced my old lead-acids at 1/3 the space. Runtime: 14hrs at 800W load. Solid purchase.