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WattCycle 12V 314Ah Ultra Bluetooth LiFePO₄ Battery with 300A BMS
- Ultra-level Energy: 142Wh/L energy density, 12.8V|314Ah|4019Wh—strong capacity in a compact form at just 61.72lbs, sized at 20.63 × 9.65 × 8.66 inch.
- Ultra-level Scenario Adaptation: built for RV, Off-Grid, UPS, Boat & Fishing, and Home Emergency Storage—one battery ready for all key power needs.
- Ultra-level 300A BMS: supports 3840W continuous output and 350A peak discharge with full protection from overload, short circuit, and imbalance—powering high-demand devices together with confidence.
- LiFePO4 EV-A+ Grade Cells: 6000 cycles @80%DOD, over 10 years of durable lifespan.
- Low-temp Cut-off: Automatic shutdown at -4°F to prevent cold damage.
- Bluetooth: Real-time monitoring, one-click control and viewing via smartphone.
- 4S4P: Expandable to 64.3kWh home-level energy storage.
- IP Rating 65: More reliable for outdoor use in rain and dust.
- Shock-resistant and Durable: Full aluminum internal frame for longer lifespan.
- 30% faster Heat Dissipation: Built-in cooling fins for greater stability under heavy load.
We offer free shipping within the continental U.S. via UPS Ground or FedEx, with orders typically processed in 1–2 business days and delivered within 2–5 business days. Large products such as 12V 628Ah, 48V 314Ah batteries, or 12kW inverters are shipped by truck (LTL) and require signature upon delivery. After order confirmation, we will contact you by email to confirm shipment, and transportation arrangements typically take about 48 hours. Please note that we do not ship to Alaska, Hawaii, Puerto Rico, or PO Box addresses. Delivery times may vary due to external factors such as carrier delays or weather conditions.
For complete details, please visit:
Shipping Policy.
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
-
30-Day Money-Back Guarantee
-
Hassle-Free Warranty
-
Lifetime Customer Support
Tech Specs
General
| Dimensions (Inches) | 20.63 (L) x 9.65 (W) x 8.66 (H) |
| Weight | 61.72lbs / 28kg |
| Waterproof Rating | IP65 |
| Warranty | Sign Warranty to extend for 7 years |
| Case Material | ABS+PC/UL94 V-0 |
| Terminal | M8 bolts |
Battery BMS
| BMS | 300A |
| Standard/Max. Continuous Charging | 62.8V/300A |
| Max. Continuous Discharge Current | 300A |
| Over-current Discharge Protection | 310A±10A |
| Over-current Charge Protection | 310A±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 |
How to Choose the Version
| Version | ![]() |
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| Size | 15.12 x 7.64 x 9.76 inch | 15.12 x 7.64 x 9.76 inch | 20.63 x 9.65 x 8.66 inch |
| Weight | 59.52 lbs | 59.52 lbs | 61.72 lbs |
| Nominal Voltage | 12.8V | 12.8V | 12.8V |
| Energy | 4019Wh | 4019Wh | 4019Wh |
| BMS | 12.8V 200A | 12.8V 200A | 12.8V 300A |
| Bluetooth | × | √ | √ |
| Low-tem Protection | √ | √ | √ |



