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WattCycle 12V 314Ah Mini Super Powerhouse LiFePO4 Battery | 3A Active Balancer | Serviceable Case | Bluetooth & Low-Temp Protection
- Super DIY Serviceable Design: 180L quick-demountable casing, easily swap out cells and parts yourself.
- Super 4-in-1 Switch: One-Key Start/Stop (App-Supported), emergency power cut-off, sleep activation, and low-consumption standby functions.
- Super Mini: Packed in 200% energy in 60% volume of the lead-acid; 15.12*8.03*10.71in|60.41lbs (40% smaller & 66% lighter)
- Super Balance: Gets 50% longer lifespan. Precise 3A active balancing real-time calibrates cell voltage differences to within ≤0.01V.
- 4kWh Massive Energy: 4019Wh Energy | Continuous Output 2560W; Power your RV camping, fishing trips, off-grid living, or household continuous use for over a day.
- Powerful 200A BMS: Supports 220A at 10s peak discharge, easily drives AC and microwaves, while covering over 20 battery protections.
- 15+ Years of High Performance: Automotive-grade prismatic LiFePO4 Cells with stable structure & 6000+ cycles at 80% DOD.
- Intelligent App for Easy Usage: Bluetooth App for smart monitoring and control, supporting remote start/stop of the battery, perfect for beginners.
- Meet Large Energy Needs: Easily expandable to 4S4P to meet power supply needs for large RVs, villas, and industrial backup.
- Military-Grade Craftsmanship: IP65 Waterproof, Metal bracket, organized internal wiring, and foam insulation protection ensure long-lasting safety and stable energy release from -4℉ to 140℉.
- 5+2 Extended Warranty, Shipping Insurance, Fast and free shipping from the warehouse, and 24-hour professional online guidance.
- Authorized Certifications: IEC/FCC/EMC/RoHS/CE/UN38.3
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
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30-Day Money-Back Guarantee
-
Hassle-Free Warranty
-
Lifetime Customer Support
WattCycle 12V 314Ah Mini Super — 4kWh in a Compact, Serviceable Case
Engineered for RVers and off-grid builders who run real loads, the 12V 314Ah Mini Super packs ~4kWh into an ultra-compact, serviceable enclosure. A 200A BMS with 3A active balancing helps keep cells in sync for longer life, while a low-resistance internal structure and copper conductors reduce heat under heavy draw. Finished with IP65-rated protection, it’s built to power harder—and last longer.
Tech Specs
General
| Dimensions (L × W × H) | 15.22 × 8.12 × 10.74 inches (including handle) |
| Weight | 60.30 lbs ±3% |
| Waterproof Rating | IP65 |
| Warranty | Sign Warranty to extend for 7 years |
| Case Material | ABS+PC/UL94 V-0 |
| Terminal | M8 bolts |
| Bluetooth | Bluetooth 5.0 |
| 3A Active Balancing Trigger Condition: | Start: ΔV ≥ 15 mVStop: ΔV ≤ 8 mV |
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 | IEC/FCC/EMC/RoHS/CE/UN38.3 |


