【BOX DAY SALES】WattCycle - 48V 100Ah Server Rack - LiFePO₄ Battery with Bluetooth, LCD Display & Communication
【BOX DAY SALES】WattCycle - 48V 100Ah Server Rack - LiFePO₄ Battery with Bluetooth, LCD Display & Communication
40 in stock
WattCycle Flagship All-in-One Home & Off-Grid LiFePO₄ Energy System
High-craftsmanship & ultra-reliable power for Home Storage Emergency, Off-Grid, Industrial, Commercial, and UPS.
Key Features
- Active Balancing (3A): Fast multi-channel equalization improves efficiency and extends battery life.
- BYD Grade A Prismatic Cells: Support 1C charge/discharge & 10+ years lifecycle.
- 100A BMS Intelligent Protection: 20+ protections & 200A (2s) peak.
- All-Weather Protection: Low-temperature cutoff & overheating protection.
- 5120Wh | 5120W safe & reliable power supply.
- Smart LCD Monitoring & real-time status.
- App remote monitoring & control.
- CAN / RS232 / RS485 inverter integration.
- Up to 20 units parallel master/slave auto recognition.
Technical Highlights
| BMS | 100A / 200A peak |
| Capacity | 5120Wh / 5120W |
| Dimensions | 48.49 × 45.01 × 13.31 cm |
| Weight | 41.69 kg |
| Charging | 1C fast charging solar/charger/generator |
| Warranty | 5 years warranty |
| Certifications | SDS / UL / UN38.3 / IEC / CE / FCC |
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- 5-Year Warranty
- Hassle-free Returns
- 7/24 Help & Advice
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Discover the all-new WattCycle 48V100Ah Rack Battery Upgrade
Gen2 3U chassis, adds hi-vis touch LCD, active-balancing BMS, Bluetooth monitoring, and parallel-up-to-20 for whole-home backup.
Premium BYD LiFePO₄ Cells
Powered by BYD-grade LiFePO₄ battery cells, this system delivers industry-leading safety, chemical stability, and consistency. These cells are widely recognized for their low thermal risk and long service life, making them ideal for demanding energy storage applications.
100× Faster Balancing. Smarter Energy Use.
Equipped with an advanced 3A active balancing system, this battery delivers up to 100× higher balancing efficiency compared to traditional 0.03A passive balancing. Energy is redistributed intelligently between cells instead of being wasted as heat, ensuring faster equalization, lower power loss, and improved consistency across the pack. The result is longer battery life, higher usable capacity, and reduced heat generation, keeping the system safer, more efficient, and more reliable over the long term.
Second-troubleshooting capability, flexibly handling all situations
Power button and short-circuit valve – one switch handles all emergencies, giving your battery a dual boost of emergency and flexibility! Powerful BMS chip automatically cuts off faults in seconds, promptly responding to short circuits, overloads, and other situations, suitable for safe use in high-power devices.
Multiple Intelligent Monitoring Features
WattCycle 48V 100Ah 3U rack battery supports remote control via a mobile app, and the battery itself features an LCD touchscreen, helping you monitor your battery status in real time.
Customizable system power, compatible with all inverters
WattCycle 48V 100Ah 3U rack lithium battery can be easily expanded to 20 batteries (automatic addressing). Seamless insertion into the 3U rack makes it simple and convenient. Its CAN/RS485/RS232 is compatible with various inverter brands on the market, easily adapting to multiple scenarios, with strong anti-electromagnetic interference capabilities and millisecond-level command interaction.
Modular stacking for seamless capacity expansion
The WattCycle 3U Rack battery is suitable for small spaces with simple plug-and-play functionality. Expansion is as easy as building with blocks, ensuring every inch of space is utilized! Whether for emergency power needs or everyday electricity usage, it provides a continuous and stable power supply, eliminating energy worries.
Only provide the best guarantees and services.
Our products undergo rigorous testing and professional certification. We provide 5 years guarantee. Don't hesitate, owning a WattCycle lithium battery can quickly recoup your investment.
Superior craftsmanship is reflected in the details
WattCycle LiFePO4 batteries use the highest quality core components, featuring a neat internal structure and a metal bracket for enhanced internal stability. Externally, they offer four interface terminals and a detachable handle for easy use, transport, and installation.
Tech Specs
| Dimensions | 19.09 x17.72 x5.24 inch (485 × 450 × 133 mm) |
| Weight | 41.69 kg |
| Rated Voltage | 51.2V |
| Rated Capacity | 100Ah |
| Energy | 5120Wh |
| Charger Limit Voltage | 58.4V |
| Over-charge Protection Voltage | 58.4V |
| Over-charge Recovery Voltage | 56V |
| Recommended Charge Current | 20A |
| Continuous Maximum Charger Current | 100A |
| Continuous Maximum Discharge Current | 100A |
| Peak Current | 200A (≤2s) |
| Over-discharge Protection Voltage | 36.8V |
| Over-discharge Recovery Voltage | 43.2V |
| Recommended Charging Voltage | 58.4V |
| Charge Low-temperature Protection | 23°F ~ 41°F |
| Charge Low-temperature Recovery | 32°F ~ 50°F |
| Charge High-temperature Protection | 140°F ~ 158°F |
| Charge High-temperature Recovery | 122°F ~ 140°F |
| Discharge Low-temperature Protection | -13°F ~ 5°F |
| Discharge Low-temp Recovery | -4°F ~ 14°F |
| Discharge High-temperature Protection | 158°F ~ 176°F |
| Discharge High-temp Recovery | 140°F ~ 158°F |
| Storage Environment (50% Charge) |
Storage ≤3 months: -20 ~ 45°C, Humidity 65±20%RH Storage >3 months: 25±3°C, Humidity 65±20%RH |
Case Material | Steel Plate Cold Common (SPCC) |
| Certifications | IEC/CE/FCC/UL1642/UL2580/UN38.3 |