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WattCycle 12V 314Ah Mini Bluetooth LiFePO₄ Battery – 4.02kWh 200A BMS for Caravans & Off-Grid Touring
Compact 4.02kWh Power: Measuring only 15.12 × 7.64 × 9.82 inches and weighing 59.52 lbs, it delivers 314Ah of capacity while taking up approximately 33% less space than a conventional 12V 300Ah LiFePO₄ battery.
Built for Australian Big Lap Adventures: An ideal house battery for caravans, off-road campers, motorhomes and 4WD ute canopies, powering fridges, lights, water pumps, TVs, laptops and other touring essentials.
Up to 3 Days of Off-Grid Power: Provides 314Ah / 4,019Wh from a single compact battery—suitable for weekend escapes and extended free camping. Actual runtime depends on appliance loads, inverter efficiency and solar input.
200A BMS for High-Power Appliances: Delivers up to 2,560W continuous output, making it suitable for high-demand caravan appliances through a correctly sized inverter, with 15+ protections against overcharge, over-discharge, overcurrent, short circuits and temperature extremes.
Choose Basic or Bluetooth: Select the Basic model for maximum value or upgrade to the Bluetooth model for real-time monitoring of SOC, voltage, current and temperature through the WattCycle app.
Smarter Parallel Battery Management: The Bluetooth model supports WattCycle App monitoring and one-button equal discharging, helping matching batteries work more consistently in parallel systems.
Expandable for Larger Caravans: Start with one 4.02kWh battery and expand up to a 4S4P system with 64.30kWh of total energy—ideal for larger caravans, long-term touring and off-grid installations.
Long-Lasting Grade-A LiFePO₄ Cells: Provides 6,000+ cycles at 80% DOD, offering a significantly longer service life and lower replacement cost than traditional lead-acid batteries.
Protected in Australian Conditions: Features an IP65-rated enclosure, internal metal frame, durable housing and integrated heat-dissipation design for touring, camping and demanding outdoor environments.
Low-Temperature Protection: Automatically stops charging around 0°C and discharging around -20°C / -4°F, helping protect the cells during cold-weather use and storage.
5+2-Year Warranty for Greater Confidence: Supported by free shipping, shipping insurance and up to seven years of warranty coverage, giving customers added confidence for long-term touring and off-grid use.
Certified for Safety and Transport: Complies with applicable IEC 62619, RoHS, CE, FCC, UN38.3 and Class 9 requirements.
Free local shipping for all orders, except some areas need extra shipping cost.
Our batteries come with a 5-year warranty, which can be extended to 7 years total upon product registration. Accessories are covered by a 1-year warranty, and like-new (refurbished) batteries include a 1-year warranty.
For full terms, conditions, and claim details, please visit:
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Fast, Free Shipping
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30-Day Money-Back Guarantee
-
Hassle-Free Warranty
-
Lifetime Customer Support
Which Setup Is Right for You?
Choose the battery setup that best matches your travel style and off-grid power needs. 1 battery (4.02kWh) is ideal for weekend getaways, couples, camper trailers and 4WD canopy setups. 2 batteries (8.04kWh) are a great choice for family caravans and around 3–5 days of free camping. For extended Big Lap touring, 3 batteries (12.06kWh) provide extra capacity for more appliances and longer stays with limited access to grid power. For large caravans, motorhomes or long-term off-grid basecamps, 4 batteries (16.08kWh) deliver maximum capacity for more demanding power needs.
Tested by MarineHowTo (Rod “RC” Collins) — an independent ABYC Certified Marine Electrical Systems Specialist focused on marine energy management systems.
In real-world marine testing, RC noted that the WattCycle 314Ah BT Mini is well-suited for boating applications, striking a strong balance between safety and price—and he described it as one of the best-built batteries he’s seen at an entry-level price point. Our sincere thanks to RC for sharing honest, reliable data and feedback to help customers make smarter decisions.
Smarter Monitoring
With Bluetooth 5.0, the WattCycle app on Android/iOS lets you check voltage, temperature, and depth of discharge in seconds. Wireless tracking is essential for remote solar arrays or under-floor RV banks—no crawling into tight compartments to verify your LiFePO4 battery health.
Smarter Monitoring
With Bluetooth 5.0, the WattCycle app on Android/iOS lets you check voltage, temperature, and depth of discharge in seconds. Wireless tracking is essential for remote solar arrays or under-floor RV banks—no crawling into tight compartments to verify your LiFePO4 battery health.
High-Capacity Performance
Compared with our 12V 280Ah MINI model, the new 314 Ah battery packs 15 % higher energy density and a 12 % capacity bump—ending your energy anxiety once and for all. For those eyeing a “300Ah slim lithium battery 12V,” this is the same sleek form factor with extra juice. At just 59.5 lbs (15.12×7.64×9.76 in), it’s one-third the weight of lead-acid equivalents yet doubles the usable energy. Perfect when you need a “solar battery 12V 300Ah” solution without sacrificing cargo space.
Triple-Shield Safety
The WattCycle 12V 314Ah LiFePO4 Battery stands up to harsh conditions thanks to its unique full-aluminum internal frame,Which not only reinforces the cell structure but also integrates cooling fins that improve heat dissipation by 30 %. That means during heavy discharge or rapid charging, excess warmth is whisked away faster—protecting cell health and maintaining peak performance. Meanwhile, braided copper wires have been newly added inside the battery, enabling it to provide more than 50% of the power with the minimum voltage drop. This three-tier design makes it one of the safest 12V 300Ah deep cycle battery options on the market.
Simplified Comparison
For those running three 12V 100Ah batteries in parallel, you’d typically combine to 300 Ah. That setup adds weight, wiring complexity, and more points of failure. By choosing one WattCycle 314Ah MINI battery instead. you get additional benefits.
Scalable Energy Expansion
Scale up your array with extra WattCycle battery to build a 4S4P (64.3 kWh) mega-bank ideal for large solar arrays or whole-home backup. your go-to for WattCycle 12V 314Ah batteries that need to grow as your demand does.
Tech Specs
General
| Dimensions | 15.12 × 7.64 × 9.76 in | 384 × 194 × 248 mm) |
| Weight | 59.52lbs / 27kg |
| Waterproof Rating | IP65 |
| Warranty | Sign Warranty to extend for 7 years |
| Case Material | ABS+PC/UL94 V-0 |
| Terminal | M8 bolts |
Battery BMS
| BMS | 12.8V/200A |
| Standard/Max. Continuous Charging | 62.8A/200A |
| Max. Continuous Discharge Current | 200A |
| Over-current Discharge Protection | 210A±10A |
| Over-current Charge Protection | 210A±10A |
| Short Circuit Current Protection | Support |
| Release Condition | Cut Load |
| Charging High Temperature Protection | 140°F ~ 158°F / 60°C ~ 70°C |
| Discharging High Temperature Protection | 149°F ~ 167°F / 65°C ~ 75°C |
| High Temperature Protection Release Condition | Drop by 41°F ~ 59°F / 5°C ~ 15°C |
| Charging Low Temperature Protection | 23°F ~ 41°F / -5°C ~ 5°C |
| Discharge Low Temperature Protection | -13°F ~ 5°F / -25°C ~ -15°C |
| Low Temperature Protection Release Condition | Rise by 41°F ~ 59°F / 5°C ~ 15°C |
| Rated Voltage | 12.8V |
| Standard Charging Voltage | 14.6V±0.2V |
| Shipping Voltage | 12.8V~13.5V |
| Shipping Capacity | 50% |
| Cycle Life | 6000@80%DOD |
| Self Discharge Rate | <3%/Month |
| Series & Parallel Connections | Max. 4 Parallel 4 Series |
| Cell Certifications | UL1642/UL2580/UN38.3 |
Upgraded WattCycle 12V 314Ah Mini LiFePO4 Battery with Bluetooth
This battery is perfectly suitable for a variety of application scenarios, From RV solar boondocking to home backup circuits, including trolling motors and on-board equipment. This module replaces bulky lead-acid stacks and standard 12V 300Ah deep cycle battery setups, streamlining power wherever you deploy it.
1. High-Capacity Upgrade to 314Ah & 4.01 kWh
WattCycle 12V 314Ah LiFePO4 Battery delivers 4019Wh energy, higher than three 12V100Ah lithium batteries connected in parallel—ideal for RVs, solar systems, home storage, trolling motors, and marine. Support Max. 4S4P to 64.307kWh—hassle-free ENERGY anxiety
2. Advanced Conductive System
Wattcycle LiFePO4 battery improves 50% higher current output efficiency with high-grade braided oxygen-free copper wires, supporting 2000W+ devices. Ideal for heavy-duty applications.
3. All-Round BMS Protection & Low-Temperature cut-off Protection
It has a built-in 200A BMS to provide 100% protection and is equipped with high-grade aluminum cooling fins that dissipate heat 30% faster and a low-temperature cut-off function to protect the battery below -4°F (-20°C), hassle-free in harsh weather.
4. Unique Internal Metal Frame Safety Design
The Wattcycle LiFePO4 battery has zero swelling risk and a solid internal battery structure with a unique internal metal frame, passing UL62133 safety tests, and is shock-resistant with a durable ABS case.
5. Bluetooth Smart Management
Monitor battery voltage/temperature in real-time via Bluetooth 5.0 (300ft range). Compatible with Wattcycle 12V battery systems for golf carts, campers, and backup power.
6. 10 Years Longer Using
Equipped with Grade-A cells only, the Wattcycle LiFePO4 battery can escort you for ten more years with 5,000-15,000 deep cycles. Safe, long life cycles, cost-effective & eco-friendly.
7. Good Choice to Replace Lead-Acid
Weighing 59.52 lbs(15×7.64×9.76inch), it is 1/3 the weight of a 12V 300Ah lead acid battery (appr.180 lbs), but 2X in energy and 3- 5X longer using years. Smaller, lighter, faster to charge, and no hassle of line connection.
