Rolls VB12-150LFP 12V 150Ah LiFePO4 Battery

  
By Rolls Battery
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Rolls VB12-150LFP 12V 150Ah LiFePO₄ Battery

Key benefits

  • 12V 150Ah LiFePO₄ leisure battery in a standard Group 31 case, ideal as a drop‑in upgrade for deep‑cycle lead‑acid in caravans, motorhomes, boats and off‑grid systems.
  • Long service life with >6000 cycles at 80% depth of discharge and >3000 cycles at 100% DOD, helping to cut whole‑life energy storage cost.
  • Integrated hardware BMS plus Bluetooth connectivity and dedicated iOS/Android app for straightforward monitoring and protection.

Brief description

The Rolls VB12-150LFP 12V 150Ah LiFePO₄ Battery (R12‑150LFP) is part of the R‑Series LFP range, using cylindrical LiFePO₄ cells in a robust ABS BCI Group 31 enclosure. With 1.92kWh of usable energy, fast charge/discharge capability and maintenance‑free operation, it suits leisure vehicles, marine house banks, commercial service vans and small off‑grid setups needing reliable 12V storage. A built‑in 4S150A BMS manages safety functions, while Bluetooth and the Rolls app provide an at‑a‑glance view of state of charge and operating conditions.

Key features

  • 12.8V nominal, 150Ah capacity and 1.92kWh total energy in a compact Group 31 footprint.
  • Standard‑size ABS case with rope/plastic handles and M8 terminals for easy replacement of VRLA or AGM batteries.
  • Fast charge/discharge performance with up to 75A charge and 150A continuous discharge, plus 800A surge (300ms) for starting high inrush loads.
  • Wide operating temperature range and IP65 enclosure for demanding leisure and light commercial environments.
  • Configurable up to 4 in series and 4 in parallel (4S4P at 48V) or up to 6 in parallel at 12V for scalable storage banks.

Technical specifications 

General

Series R‑SERIES LFP
Warranty See Warranty Terms
Volts 12
Design Grp 31
Terminal Type M8
Included Hardware M8 stainless bolts & washers

Charge / Discharge

Charge Voltage Range 14.0 - 14.6V
Recommended End of Discharge Voltage 12.0 V
End of Discharge Protection Voltage 10.0 V
Recommended Charge Voltage 14.4 V
Recommended Charge Current 0~10°C (32‑50°F) 0.2C 30A
Recommended Charge Current 10~35°C (50‑95°F) 0.5C 75A
Recommended Charge Current 35~50°C (95‑122°F) 0.2C 30A
Charge Mode Charge at recommend voltage & current by temperature until charge current drops to ≤ 0.05C (CC,CV)
Charge Mode Notes DO NOT USE TEMPERATURE COMPENSATION; No BTS (Battery Temperature Sensor)
Max Continuous Charge Current 75 A
Max Continuous Discharge Current 150 A
Surge Current Limit 800 A (300ms)
Charge Temperature Range 0°C~55°C (32~131°F)
Discharge Temperature Range -20°~60°C (-4~140°F)
Storage Temperature Range -5°~45°C (23~113°F)

Capacity

Nominal Capacity 150 AH
Total Energy 1.92 kWh
Nominal Voltage 12.8 V

Safety

Cell type Cylindrical LiFePO4 cells (UL1642)
Standards IEC62133 (cell), IEC62619(cell), UN38.3 (cell/pack)
Certifications ROHS (cell), CE system certification, IP65 Rating

Design

Container ABS
Cover ABS
Handles Rope / Plastic Handle
Design features Standard-size (BCI) ABS container for easy VRLA replacement; Fast charge/discharge performance; Maintenance-free operation; Bluetooth Connectivity & dedicated IOS & Android App

Battery Management System (BMS)

Type Integrated hardware BMS inside
Internal BMS Model 4S150A
Protection topology Independent charge & discharge protection
Protection functions Short-Circuit Protection, Over-Voltage Protection, Low-Voltage Protection, Over-Current Protection, Low-Temperature Protection, Over-Temperature Protection

12V LFP profile – mechanical

Weight 15.5 kg / 34.2 lbs
Length 330 mm / 13"
Width 173 mm / 6.81"
Height 216 mm / 8.5"
Height Incl. Term. 219 mm / 8.62"
Measurement note Product measurements & weights are calculated based on sample data. Individual specifications are subject to vary due to the manufacturing process & battery components.

Operational limits and configuration

Expected Cycle Life >6000 @ 80% DOD, >3000 @ 100% DOD
Series Connection 4 UNITS MAX (48V)
Parallel Connection 4 UNITS MAX (48V) or 6 UNITS MAX (12V)
Connectivity Up to 4S4P (in 48V configuration) or 1S6P (in 12V configuration)
Revision Rev.#1 | May 2023

Shipping

Shipping is available to the UK, Ireland, Africa, the Caribbean and worldwide. If the shipping rate is not shown at checkout, please contact us on +44 2080640335 or info@energian.co.uk for a tailored shipping quote.

UK expert support

UK expert support is available to help with battery selection, sizing and configuration of the Rolls VB12-150LFP 12V 150Ah LiFePO₄ Battery in leisure, marine and off‑grid systems. For larger banks or systems with inverters, chargers and DC distribution we recommend installation and commissioning via our trusted partners to ensure safe operation and correct protection settings.

You can contact us by phone, email or live chat, or visit our office for an in‑person consultation to discuss your project and preferred system layout.

Documents available for download