Rolls VB24-200LFP 24V 200Ah LiFePO₄ Battery
Suitable for Off-Grid, Marine and Leisure Power Systems
The Rolls VB24-200LFP 24V 200Ah LiFePO₄ Battery is a high-capacity lithium battery designed for reliable deep-cycle energy storage in 24V systems. With a nominal voltage of 25.6V, 200Ah capacity and 5.12kWh of total energy, it is well suited to boats, larger motorhomes, off-grid cabins, commercial DC systems and other applications where dependable lithium storage is required.
Part of the Rolls VB Series LFP range, this battery uses prismatic LiFePO₄ cells in a robust ABS enclosure and includes an integrated hardware BMS for electronic protection. It offers fast charge and discharge performance, maintenance-free operation, Bluetooth connectivity, IP65 protection and built-in heating for low temperature operation.
Key Benefits
- 24V 200Ah LiFePO₄ battery with 5.12kWh total energy in a single 8D enclosure
- Designed for higher-demand leisure, marine, commercial and off-grid systems
- Long service life with 6000 cycles at 80% depth of discharge
- Integrated hardware BMS with independent charge and discharge protection
- Built-in heating for low temperature operation
- Bluetooth connectivity with dedicated iOS and Android app
- IP65 rated ABS enclosure for demanding environments
- Maintenance-free lithium alternative to traditional lead-acid battery banks
Key Features
- 25.6V nominal voltage and 200Ah nominal capacity
- 5.12kWh total energy storage
- VB Series LFP battery in 8D design format
- Prismatic LiFePO₄ cells
- Recommended charge voltage range: 28.4-29.2V
- Recommended charge current: 0.5C / 100A from -20°C to 50°C
- Maximum continuous charge current: 150A
- Maximum continuous discharge current: 200A
- Charge temperature range: -20°C to 50°C
- Discharge temperature range: -20°C to 55°C
- Storage temperature range: -5°C to 45°C
- M8 terminals with M8 stainless bolts and washers supplied
- ABS container and cover with rope / plastic handles
- Integrated RD-RJ8S200A hardware BMS
- Can be configured up to 2 units in series and 4 units in parallel
- Supports up to 2S4P configuration for 48V battery banks
Integrated Battery Management System
The Rolls VB24-200LFP includes an integrated hardware Battery Management System inside the battery. The 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.
Low Temperature Operation
The VB24-200LFP includes heating for low temperature operation, making it more suitable for demanding installations where batteries may be exposed to colder conditions. The battery has a charge temperature range of -20°C to 50°C and a discharge temperature range of -20°C to 55°C.
As with all lithium battery installations, charging sources should be configured correctly. The Rolls datasheet states that temperature compensation should not be used and that no battery temperature sensor should be fitted for charge compensation.
Bluetooth Monitoring
Bluetooth connectivity and a dedicated iOS and Android app allow battery information to be viewed more conveniently during operation. This is useful for checking battery status in leisure, marine and off-grid systems where batteries may be installed in compartments or plant areas.
Technical Specifications
General
| Series | VB Series LFP |
| Warranty | See Warranty Terms |
| Volts | 24 |
| Design | 8D |
| Terminal Type | M8 |
| Included Hardware | M8 stainless bolts & washers |
| Size & Thread | M8 |
Charge / Discharge
| Charge Voltage Range | 28.4-29.2V |
| End of Discharge Protection Voltage | 22.4 V |
| Recommended Charge Current -20~50°C (-4-122°F) | 0.5C / 100A |
| Charge Mode | Charge at recommended voltage and 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 | 150 A |
| Max Continuous Discharge Current | 200 A |
| Charge Temperature Range | -20~50°C (-4~122°F) |
| Discharge Temperature Range | -20~55°C (-4~131°F) |
| Storage Temperature Range | -5~45°C (23~113°F) |
Capacity
| Nominal Capacity | 200 AH |
| Total Energy | 5.12 kWh |
| Nominal Voltage | 25.6 V |
Safety
| Cell Type | Prismatic LiFePO4 cells [CB27173204EA] |
| Standards | IEC62619 (cell), UL 1973 (cell), UN38.3 (cell/pack) |
| Certifications | ROHS (cell), CE system certification, IP65 Rating |
Design
| Container | ABS |
| Cover | ABS |
| Handles | Rope / Plastic Handle |
| Design Features | ABS container; Fast charge/discharge performance; Maintenance-free operation; Heating for low temperature operation; Bluetooth Connectivity & dedicated iOS & Android App |
Battery Management System (BMS)
| Type | Integrated hardware BMS inside |
| Internal BMS Model | RD-RJ8S200A |
| 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 | 40.5 kg / 89.3 lbs |
| Length | 520 mm / 20.47" |
| Width | 268 mm / 10.55" |
| Height | 220 mm / 8.66" |
| Height Incl. Term. | 225 mm / 8.86" |
| 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 |
| Series Connection | 2 UNITS MAX (48V) |
| Parallel Connection | 4 UNITS MAX |
| Connectivity | Up to 2S4P (in 48V configuration) |
| Revision | Rev.#2 | November 2025 |
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 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 VB24-200LFP 24V 200Ah LiFePO₄ Battery in marine, leisure, commercial and off-grid systems. We can help check suitability for your inverter, charger, solar controller and intended system layout before ordering.
You can contact Energian by phone, email or live chat, or visit our office for an in-person consultation to discuss your project and preferred system layout.