WattCycle 12V 314Ah Lithium Leisure Battery UK | LiFePO4 Campervan Battery with Bluetooth
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Local UK warehouse, more details in Shipping Policy.
Please see our Warranty Policy for more details.
Please feel free to contact us via Email (support.uk@wattcycle.com) or WhatsApp(+852 5473 5422).
- 1 Pack - £555.99
- 2 Pack - £1,111.99
- 3 Pack - £1,667.99
- 4 Pack - £2,223.99
WattCycle 12V 314Ah Lithium Leisure Battery UK | LiFePO4 Campervan Battery with Bluetooth
12V 314Ah Mini Smart Battery In Real Use
Compact 12V 314Ah LiFePO4 Battery Designed for Campervan & Off-Grid Power Systems
🔋 Verified Performance & Real-World Testing
This WattCycle 12V 314Ah Mini LiFePO4 leisure battery has been tested in real off-grid and motorhome applications to confirm its true usable capacity, internal structure, and long-term performance. Built with EV-grade lithium cells, it delivers stable power output and consistent energy storage for campervans, caravans, and solar systems. Users can also monitor real-time performance via the built-in Bluetooth app, ensuring transparent and reliable battery management in everyday use.
12V 314Ah LiFePO4 Leisure Battery for Campervans & Off-Grid Power Systems
The WattCycle 12V 314Ah Mini Bluetooth LiFePO4 battery delivers 4.01kWh of usable energy in a compact, space-saving design, making it ideal for UK motorhomes, caravans, and off-grid solar storage systems.
Built with EV-grade A+ lithium cells and a 200A Battery Management System (BMS), it supports stable high-power discharge performance for inverters and demanding electrical systems used in campervan and caravan setups.
Designed for real-world UK off-grid living, this lithium leisure battery combines high energy density, built-in safety protection, and smart Bluetooth monitoring for reliable everyday performance.
Why Choose the 12V 314Ah Mini Bluetooth LiFePO4 Leisure Battery
Designed for UK campervans, caravans, and off-grid energy systems, this 12V 314Ah lithium leisure battery delivers 4.01kWh of usable energy and up to 200A continuous output, making it suitable for inverters and high-demand electrical setups.
Built with EV-grade A+ lithium cells and an advanced 200A Battery Management System (BMS), it provides strong safety protection including overcharge, over-discharge, short circuit, and temperature control for reliable long-term use.
With a cycle life of up to 10,000–15,000 cycles, the battery is designed for long-term off-grid performance. Its IP65-rated enclosure helps protect against water and dust, making it suitable for outdoor and marine environments.
Built-in Bluetooth 5.0 monitoring allows real-time battery status tracking via mobile app, helping users easily manage power usage in motorhomes and off-grid setups.
Flexible Installation for Multi-Scenario Energy Storage
The WattCycle 12V 314Ah Mini Smart LiFePO4 battery is designed for flexible installation in tight spaces, making it ideal for UK motorhomes, campervans, and off-grid energy systems.
With compact dimensions of L384 x W194 x H248 mm, it fits easily into narrow battery compartments while still delivering high-capacity 4.01kWh usable energy.
It can be installed upright, sideways, or flat, providing installation flexibility for campervan conversions, caravans, marine systems, and portable off-grid power setups.
Its stable internal structure ensures consistent performance and safe operation in different mounting positions, making it suitable for travel and mobile energy applications.
Enhanced Internal Structure for Improved Stability and Safety
The WattCycle 12V 314Ah Mini LiFePO4 leisure battery features an upgraded internal structure designed for improved mechanical stability and long-term durability in mobile and off-grid applications.
Built with an internal metal frame, the battery is reinforced to reduce movement and improve structural integrity, making it suitable for campervans, caravans, and marine environments.
It uses flexible copper conductors and aluminium cooling components to support efficient thermal management and stable power delivery during continuous use.
Lightweight Lithium Upgrade from Traditional AGM Batteries
The WattCycle 12V 314Ah Mini Bluetooth LiFePO4 battery offers a modern replacement for traditional AGM lead-acid battery systems, delivering higher usable energy in a significantly smaller and lighter design.
With compact dimensions (L384 × W194 × H248mm, L340mm without handles) and a lightweight 27kg structure, it replaces multiple heavy lead-acid batteries that are typically used in campervans and motorhomes.
Providing up to 4019Wh of usable energy and 2560W output, it offers improved energy efficiency and space optimisation for modern off-grid and mobile power systems.
Effortless Bluetooth Connectivity To Control Battery Smartly
Gain complete oversight of your power system in three quick steps: Install the WattCycle App, detect your Bluetooth-enabled battery, and pair it through the interface. The App is readily available - either scan the provided QR code or locate "WattCycle" directly in the Google Play or Apple App Store.
Expandable Modular Lithium Battery System for Off-Grid Energy Storage
The WattCycle 12V 314Ah Mini Bluetooth LiFePO4 battery supports flexible system expansion with up to 4 batteries in parallel and 4 in series (4P4S), allowing users to build larger energy storage systems based on their power requirements.
A full 16-battery configuration can be combined to form a 48V high-capacity system suitable for extended off-grid applications, including motorhomes, marine systems, and solar energy storage setups.
This modular design allows users to start with a single battery and expand over time, making it suitable for both occasional campervan users and full-time off-grid energy systems.
Reliable Power for Off-Grid Travel and Extended Energy Use
By connecting multiple WattCycle 12V 314Ah Mini LiFePO4 batteries, users can build a scalable energy storage system with a total capacity of up to 64.31kWh, suitable for long-term off-grid power applications.
This modular lithium battery system is designed for extended motorhome travel, marine use, and off-grid living, providing stable power for essential appliances, navigation systems, and onboard electronics.
It offers a flexible solution for users who require reliable energy storage that can grow over time based on their power needs.
COMPARISON
| 3 Pcs 12V 100Ah Lead-acid Battery | WattCycle 12V 314Ah Bluetooth LiFePO4 Battery | Other Brand 12V 300Ah LiFePO4 Battery |
| / | EV Grade A+ LiFePO4 Cells | EV Grade A LiFePO4 Cells |
| 300Ah | 314Ah | 300Ah |
| 3 x L333 x W175 x H218 mm | L384 x W194 x H248 mm | L522 x W240 x H218 mm |
| 87 kg in total | 27 kg | 29.09 kg |
| x Low-Temperature Protection | ✔ Low-Temperature Protection | x Low-Temperature Protection |
| x Bluetooth | ✔ Bluetooth | x Bluetooth |
TECHNICAL SPECIFICATIONS
General
| Battery Technology | LiFePO4 |
| Dimensions | With Handles: L384 x W194 x H248mm Without Handles: L340 x W194 x H248mm |
| Weight | 27kg |
| Terminals | M8 Bolts |
| Casing Material | ABS |
| Waterproof Rating | IP65 |
| Certifications | ECE R10, IEC, FCC, CE-EMC, CE-RoHS, CE-Battery, CE-RED, UN 38.3, PSE, METI, UL1973 |
| Hazard class | 9 |
| Warranty | 5 Years |
Technical Data
| Nominal Voltage | 12,8V |
| Nominal/Usable Capacity | 314Ah |
| Energy | 4019Wh |
| Cell Balancing | Yes, passive balancing |
| Bluetooth | Yes, Bluetooth 5.0 |
| Monthly Self Discharge | ≤3%/Month |
| Series & Parallel Configurations | Max. 4 in Parallel, Max. 4 in Series |
BMS
| BMS | 200A |
| Max. Continuous Output Power | 2560W |
| Overall Over-Charge Detection Voltage | 14,4±0,2V |
| Overall Over-Discharge Detection Voltage | 10±0,2V |
| Standard Continuous Charge Current | 62.8A (0.2C) |
| Max. Continuous Charge/Discharge Current | 200A (1C) |
| Over-current Charge Protection | 210A±10A |
| 1st Discharge Over-Current | 210A±10A @ 10±0,5s |
| 2nd Discharge Over-Current | 250A±10A @ 1±0,5s |
| BMS High Temperature Cut-Off | Charge: 55℃±5℃ Discharge: 65℃±5℃ |
| BMS Low Temperature Cut-Off | Charge: 0℃±5℃ Discharge: - 20℃±5℃ |
| High Temperature Recovery | Charge: 50℃±5℃ Discharge: 60℃±5℃ |
| Low Temperature Recovery | Charge: 2℃±5℃ Discharge: -15℃±5℃ |
Temperature Range
| Charging Temperature | 0℃-55℃ |
| Discharging Temperature | -20℃-60℃ |
| Storage Temperature | 0℃-45℃ |
FAQ's
Does the BMS include low-temperature disconnect?
Do I have to buy a special charger for LiFePO4 batteries?
Are WattCycle 12V 314Ah LiFePO4 batteries safe?
Can I use this battery as a starter battery?
Can I charge WattCycle LiFePO4 lithium batteries with solar panels?
How to store LiFePO4 batteries?
What maintenance does the battery require?
CUSTOMER REVIEWS
Customer Reviews
Excellent upgrade for my campervan,Replaced my old AGM setup with this battery and the difference is huge. Much more capacity and the Bluetooth monitoring is super convenient. Perfect for long trips without worrying about power.
De bestelling en levering was eenvoudig en alles verliep soepel en was binnen een paar dagen geregeld.
Over de accu zelf kan ik zeggen dag deze stevig en degelijk aanvoelt. In reviews (zoals van Will Prowse) komt de accu er best wel heel goed uit. Over mijn eigen praktijkervaring kan ik nog niets zeggen. De accu is zojuist ingebouwd in de camper en we gaan hem ervaren de komende tijd.
A very good product. Does what is promised.Great quality for the price.
Love it
Top. The product is perfect, everything is as described, it will be installed in the camper soon.