51.2v100a
Nominal Voltage 51.2V
Operating Voltage Range 44.8V – 57.6V
Capacity 100Ah
Energy 5.12kWh
Charge Voltage 57.6V ± 0.2V
Discharge Cut-off Voltage 44.8V
Standard Charge Current 20A (0.2C)
Max Charge Current 50A (0.5C)
Standard Discharge Current 20A (0.2C)
Max Continuous Discharge Current 50A (0.5C)
Peak Discharge Current 100A (5 seconds)
Charge Temperature 0°C – 55°C
Discharge Temperature -20°C – 55°C
Cycle Life 6,000+ cycles @ 80% DoD
Calendar Life 15+ years
Self-Discharge Rate ≤3% per month
Round-Trip Efficiency ≥95%
V-Link E 51.2V 100Ah LiFePO4 Battery
This battery is a compact, versatile 5.12kWh energy storage module designed to serve as a foundational component for any residential or light commercial solar system. Its lightweight design (approx. 45 kg) and compact dimensions make it exceptionally easy to handle and install—ideal for utility spaces with limited room, apartments, and standalone backup power solutions.
Don't let its compact size fool you. Built with Grade A LiFePO4 cells and an advanced Battery Management System (BMS), the BU-ESS-5K-100 delivers the same 6,000+ cycle lifespan and >95% round-trip efficiency as our larger models. It communicates seamlessly with all major hybrid inverters via CAN/RS485 and supports parallel connection of up to 16 units, enabling scalable energy storage capacities ranging from 5kWh to 82kWh.
For installers, the 100Ah model is a top choice; its light weight allows a single technician to perform wall-mounted installations independently, thereby reducing installation time and labor costs. For homeowners, it offers an accessible entry point into LiFePO4 energy storage, backed by a 10-year warranty.
Key Highlights
• 5.12kWh per module — An ideal building block for systems of any size
• 6,000+ cycles at 80% Depth of Discharge (DoD) — Over 15 years of daily use
• Grade A LiFePO4 cells — The safest lithium battery chemistry; zero risk of thermal runaway
• Smart BMS + Mobile App — Real-time monitoring of battery level, voltage, and temperature
• Lightweight (approx. 45 kg) — Single-person installation; no lifting equipment required
• Parallel support — Connect 2 to 16 units for a total capacity of 10 to 82 kWh
• Universal inverter compatibility — Growatt, Deye, Sungrow, SMA, Victron, GoodWe
• 10-year warranty — Comprehensive manufacturer's warranty
