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⚡️Early Driver Price: $699⚡️WattCycle 12V 314Ah Dual Purpose LiFePO4 Battery for Semi Truck Starter & Sleeper Cab | 1800 CCA | Bluetooth & Self-Heating
- Dual-Purpose Truck Battery: Starts your truck and powers sleeper cab essentials from one 12V 314Ah LiFePO4 battery.
- 1800 CCA Starting Power: Strong cranking output for heavy-duty diesel engine starts.
- 4019Wh Sleeper Energy: Runs lights, fridge, laptop, fan, small appliances, and onboard electronics.
- Reduce Idle Time: Helps power parked cab loads without running the engine every time.
- Up to 8H at 500W: Supports a 500W DC-equivalent load for up to 8 hours. Runtime varies by inverter, load, temperature, and setup.
- Cold-Weather Self-Heating: Built-in heating activates below 32°F / 0°C to support safer lithium charging.
- Bluetooth Monitoring: Check SOC, voltage, temperature, and battery status from your phone.
- 200A BMS Safety: Helps protect against overcharge, over-discharge, overcurrent, short circuit, and temperature issues.
- Road-Ready Protection: IP65 enclosure and reinforced internal structure help handle dust, moisture, vibration, and long-haul use.
- Installation Note: Confirm fitment, wiring, inverter, and lithium-compatible charging setup before installation.
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:
Not just a house battery. One battery built to do both.
It combines 1800 CCA starting power with 4019Wh of deep-cycle energy, giving you one battery that can help start your truck and support essential sleeper cab loads.
- Engine-starting power for heavy-duty truck use.
- Deep-cycle energy for onboard appliances and electronicsOne compact lithium battery for starting and power storage.
- Designed for semi trucks, RVs, utility vehicles, and off-grid setupsNot just a starter battery.
1800 CCA Starting Power
Designed for heavy-duty diesel starting, this battery delivers up to 1800 Cold Cranking Amps for strong start-up performance. It provides the burst of power needed for demanding cranking moments, especially when reliability matters on long routes.
4019Wh Sleeper Cab Energy + Up to 8 Hours at 500W
With 314Ah capacity and 4019Wh of stored energy, this battery helps power essential sleeper cab devices when parked, including lights, fans, refrigerators, laptops, small appliances, and onboard electronics. Under ideal conditions, it can support a 500W DC-equivalent load for up to 8 hours, with actual runtime depending on inverter efficiency, appliance type, temperature, battery status, and system setup.
Advanced BMS Protection
The integrated BMS helps protect the battery during charging, discharging, and daily high-demand use. It provides protection against overcharge, over-discharge, overcurrent, short circuit, and temperature-related issues for safer operation.
Bluetooth Monitoring
Built-in Bluetooth allows you to check key battery data directly from your phone. You can monitor state of charge, voltage, temperature, working status, and system alerts without opening the battery compartment.
Premium LiFePO4 Cells
Built with Grade-A prismatic LiFePO4 cells, this battery is designed for long-term performance and stable power delivery. The chemistry offers longer service life, higher efficiency, and lower long-term cost compared with traditional lead-acid options.
Compact & Flexible Installation
With a size of 20.47 × 9.45 × 8.66 inches, this battery is designed for flexible installation in truck and mobile power systems. It may fit in areas such as frame rail spaces, under-bunk compartments, behind-cab areas, or custom auxiliary battery setups, depending on the vehicle.
Tested Performance + Reduce Idle Time
For a dual-purpose truck battery, real-world performance matters. Cold cranking tests, diesel engine start tests, voltage drop data, peak current results, and low-temperature performance help verify reliability, while stored lithium energy helps drivers reduce unnecessary idling, save fuel over time, and enjoy quieter rest periods when powering basic cab loads.
Built for Multiple Applications
This battery is primarily designed for semi truck starting and sleeper cab power, but it can also support RVs, utility vehicles, off-grid systems, and custom mobile power setups. For best performance, always match the battery with the correct installation, charging method, and load requirements.
Tech Specs
General
| Dimensions (L × W × H) | 20.47 * 9.45 * 8.66 inches / 520 * 240 * 220 mm |
| Weight | 66.14 lbs ± 3% / 30.00 kg ± 3% |
| Nominal Voltage | 12.8V |
| Capacity | 314Ah |
| Energy Storage | 4.02kWh |
| Self Discharge Rate | ≤3% / Month |
| Bluetooth | Support |
| Self-Heating | Support |
Battery BMS
| Max. Charge Voltage | 14.6V |
| Standard/Max. Continuous Charging | 62.8A / 200A |
| Max. Continuous Discharge Current | 200A |
| Cold Cranking Amps | 1800A |
| Charge Temperature Range | 32~167°F / 0~75°C |
| Discharge Temperature Range | -40~185°F / -40~85°C |
| Discharge Cut-off Voltage | 12.2 ± 0.4V |
FAQ
Yes, this battery is designed with 1800 CCA starting power for heavy-duty diesel engine starting. Actual starting performance depends on your truck’s engine, wiring, battery temperature, SOC, and installation setup.
This battery can help reduce idle time and power essential sleeper cab loads, but it should not be treated as a full diesel APU replacement for every truck, climate, or HVAC setup. High-power air conditioning or heating may require a larger system.
It depends on your truck’s electrical system. A lithium-compatible DC-DC charger or voltage-regulated charging setup may be required. Professional installation is recommended.
Directly mixing lithium and lead-acid batteries is not recommended unless your system is professionally designed for it. Different battery chemistries charge and discharge differently.
The battery stores about 4019Wh of energy. In ideal DC-equivalent conditions, that is up to about 8 hours at 500W. Actual runtime depends on inverter efficiency, appliance type, temperature, and battery settings.
No. This battery measures 20.47 × 9.45 × 8.66 inches / 520 × 240 × 220 mm. Please confirm your available installation space before purchase.
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