Rolls S48-100LFP ESS – 51.2V 100Ah LiFePO4 Rack-Mount Lithium Battery

The Rolls S48-100LFP ESS is a 51.2V, 100Ah (5.12 kWh) lithium iron phosphate energy storage battery from Rolls Battery Engineering, based in Nova Scotia, Canada. Built in a 19" 4U rack-mount format, it is designed for residential and commercial solar, off-grid and backup power systems, and scales up to 16 units in parallel.

Key Features:

• LiFePO4 chemistry: over 6,000 cycles at 80% depth of discharge (over 3,000 at 100%)
• 5.12 kWh usable energy per unit; connect up to 16 in parallel for over 80 kWh
• Integrated screen and controls with state-of-charge display
• Built-in BMS with independent charge and discharge protection, plus secondary protection against short circuit, over/under-voltage, over-current and over/under-temperature
• CAN bus and 2× RS-485 communication for closed-loop inverter integration, plus PC connectivity
• Separate BMS breaker and external breaker access
• 19" 4U rack-compatible; fits the optional Rolls LFP ESS Cabinet (up to 8 units)
• IP54 rated, with built-in handles
• Dimensions: 21.8" L × 17.4" W × 6.8" H (555 × 442 × 173 mm)
• Weight: 50.5kg (111.3 lbs)

Specifications:

• Nominal Voltage: 51.2V (48V class)
• Capacity: 100Ah · Energy: 5.12 kWh
• Cells: LiFePO4, cylindrical 26700
• Charge Voltage: 56.0–58.4V (57.6V recommended)
• End-of-Discharge Voltage: 48.0V recommended · 41.6V protection cut-off
• Max Continuous Charge / Discharge Current: 50A / 63A
• Peak Current: 500A (300 ms)
• Recommended Charge Current: 20A (0–10°C) · 50A (10–35°C) · 20A (35–50°C)
• Operating Temperature: charge 0–55°C · discharge -20–60°C · storage -5–45°C
• Communication: 1× CAN, 2× RS-485
• Terminals: M6
• Certifications: UL 1642, UL 1973, IEC 62133, IEC 62619, UN 38.3, CE, RoHS

Shipping: At 50.5kg, this battery ships by freight. Choose freight delivery at checkout and we'll contact you with a quote, or choose pickup from our warehouse and we'll email you when it's ready.

Covered by the Rolls Battery manufacturer's warranty. Check the Rolls operating manual for compatible inverters and communication protocols.