Rolls VB24-150LFP 24V 150Ah LiFePO₄ Battery Suitable for Leisure, Marine and Off-Grid Power Systems The Rolls VB24-150LFP 24V 150Ah LiFePO₄ Battery (R24-150LFP) is part of the R-Series LFP range and uses cylindrical LiFePO₄ cells in a robust 8D ABS enclosure. With 3.78kWh of energy, fast charge/discharge behaviour and IP65 protection, it is well suited to 24V boat systems, larger campervans, off-grid cabins and small commercial DC banks. An integrated 8S150A BMS manages protection, while the standard BCI footprint makes it straightforward to replace existing deep-cycle lead-acid batteries. The battery offers maintenance-free lithium storage for systems where dependable deep-cycle performance and lower whole-life cost are important. Key Benefits 24V 150Ah LiFePO₄ battery providing 3.78kWh of storage in a single 8D case, ideal for larger leisure, marine and off-grid systems Long service life with >6000 cycles at 80% depth of discharge and >3000 cycles at 100% DOD, reducing whole-life cost versus lead-acid Drop-in style replacement for VRLA with integrated BMS, full electronic protection and maintenance-free operation Key Features 24V class battery with 25.6V nominal voltage, 150Ah capacity and 3.78kWh total energy in an 8D form factor Standard-size BCI ABS container with moulded handles and M8 terminals supplied with stainless bolts and washers Fast charge/discharge performance with up to 75A continuous charge current and 150A continuous discharge current, plus 800A surge for 300ms Wide operating temperature range: charge from 0°C to 55°C and discharge from -20°C to 60°C Can be configured up to 2 units in series and 4 units in parallel, 2S4P at 48V, or up to 6 in parallel at 24V for scalable storage banks Integrated Battery Management System The Rolls VB24-150LFP includes an integrated hardware Battery Management System inside the battery. The 8S150A BMS provides independent charge and discharge protection and is designed to help protect the battery from common electrical and temperature-related faults. BMS protection functions include short-circuit protection, over-voltage protection, low-voltage protection, over-current protection, low-temperature protection and over-temperature protection. Technical Specifications General Series R-Series LFP Warranty See Warranty Terms Volts 24 Design 8D Terminal Type M8 Included Hardware M8 stainless bolts & washers Charge / Discharge Charge Voltage Range 28.0 - 29.2V Recommended End of Discharge Voltage 24.0 V End of Discharge Protection Voltage 20.0 V Recommended Charge Voltage 28.8 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 recommended 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 3.78 kWh Nominal Voltage 25.6 V Safety Cell Type Cylindrical LiFePO4 cells [ITR26-70/46E 4.6Ah, 26700] (UL1642) Standards IEC62133 (cell), IEC62619(cell), UN38.3 (cell/pack) Certifications ROHS (cell), CE system certification, IP65 Rating Design Container ABS Cover ABS Handles Moulded Design Features Standard-size (BCI) ABS container for easy VRLA replacement; Fast charge/discharge performance; Maintenance-free operation Battery Management System (BMS) Type Integrated hardware BMS inside Internal BMS Model 8S150A 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 Mechanical Specifications Weight 33.5 kg / 73.6 lbs Length 521 mm / 20.5" Width 267 mm / 10.51" Height 220 mm / 8.66" Height Incl. Term. 223 mm / 8.78" Measurement Note Product measurements & weights are calculated based on sample data. Individual specifications may vary due to the manufacturing process & battery components. Operational Limits and Configuration Expected Cycle Life >6000 @ 80% DOD, >3000 @ 100% DOD Series Connection 2 UNITS MAX (48V) Parallel Connection 4 UNITS MAX (48V) or 6 UNITS MAX (24V) Connectivity Up to 2S4P (in 48V configuration) or 1S6P (in 24V configuration) Revision Rev.#1 | May 2023 System Design and Installation Notes This battery should be installed with correctly rated DC protection, suitable cabling and compatible charging equipment. Charger, inverter and solar charge controller settings must be configured to match the battery manufacturer's requirements. For larger systems, 48V configurations or installations involving inverters, chargers, DC distribution and multiple batteries, professional installation and commissioning is strongly recommended. 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 [email protected] for a tailored shipping quote. UK Expert Support UK expert support is available to help with battery selection, sizing and configuration of the Rolls VB24-150LFP 24V 150Ah LiFePO₄ Battery in marine, leisure 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 to Download Rolls VB24-150LFP / VB24-150LFP Datasheet Rolls VB-Series LFP Installation / User Manual
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