Why Choose WattCycle 12V LiFePO4 Batteries?
High quality battery cells
All WattCycle's batteries use EV-grade A+ cells, providing up to 15,000 cycles @ 60% DoD, ensuring 10 Years battery life, reducing the frequency of battery replacement and the worry of energy depletion.
Comprehensive Protection
All WattCycle's batteries are equipped with a Battery Management System(BMS) to safeguard the battery from over-charge, over-discharge, over-current, short-circuit, high-temperature and low-temperature.
Ultra Compact Design
WattCycle adheres to the innovation of the energy density of the battery. The size of a WattCycle 12V 280Ah Mini battery is equivalent to that of a 12V 100Ah lead-acid battery, but the capacity is three times that of a lead-acid battery.
Scalable Energy Solution
WattCycle 12V battery supports Max 4P4S battery expansion. This means 4 batteries in parallel and 4 batteries in series, which will form a 48V LiFePO4 battery system. Expand arbitrarily to meet your different energy needs.
Μπαταρίες 12V
WattCycle 12V LiFePO4 Batteries Teardown - Trustworthy Battery Cells And Frames
Let's look at what the battery expert says about WattCycle 12V LiFePO4 Batteries! WattCycle batteries are made of high-performance EV cells, and there is a solid framework to tighten the cells, which ensures your battery survives the turbulence.
WattCycle 12V LiFePO4 Batteries Advantages
It's always your FIRST choice in 12V LiFePO4 Batteries.
- Best replacements for a lead-acid batteries
- Lithium iron phosphate batteries are stable and not prone to explosion
- Intelligent: Built-in battery management system(BMS) provides multiple protections
- Passive battery balancing function
- Free maintenance
- Low self-discharge rate
- Support 1C discharge
- Fast and safe charging
- Low-temperature cut-off protection
- Long Lifespan & 10 Years Stable Service
- Pollution-free & Green Energy

WattCycle Review - Real Feedback from Customers
FAQs
Can WattCycle 12V LiFePO4 batteries be used in extreme temperatures?
The recommended operating temperatures for WattCycle 12V LiFePO4 batteries are:
- Charging: 0°C – 65°C
- Discharging: -20°C – 70°C
- Storage: 0°C – 60°C
The built-in Battery Management System (BMS) provides high- and low-temperature protection, ensuring safe operation. For example:
- Low-Temperature Protection: Automatically halts charging if the temperature drops below -20°C to prevent damage.
- High-Temperature Protection: Stops charging/discharging if temperatures exceed 65°C (charging) or 70°C (discharging).
Key Notes:
- Performance in Extreme Conditions: While the battery can operate in these ranges, optimal performance is achieved within 20°C – 25°C.
- Avoid Prolonged Exposure: Extended use outside the recommended ranges may reduce lifespan or efficiency.
- Storage: Keep the battery in a dry, temperature-controlled environment when not in use.
Safety First!
The BMS ensures safe usage, but always monitor battery conditions in extreme environments.
Can I connect 12V 100Ah LiFePO4 battery with a 12V 100Ah Mini battery?
Not recommended. WattCycle requires four rules for safely connecting batteries in series or parallel:
- Same brand
- Same voltage
- Same current (capacity)
- Purchased within 6 months
Why Mixing Different Batteries Is Risky:
- Imbalanced Performance: The 12V 100Ah LiFePO4 battery and mini battery likely differ in capacity, internal resistance, or age, leading to uneven charging/discharging.
- Reduced Efficiency: One battery may drain faster, forcing the other to overwork.
- Safety Risks: Mismatched batteries can overheat, degrade prematurely, or even fail.
Recommendation:
- Use identical batteries (same brand, voltage, capacity, and age) for safe and stable operation.
- If you need more capacity or voltage, stick to one battery type (e.g., If you need a 24V 100Ah battery system, then it is recommended to purchase a 24V 100Ah battery instead of 2 x 12V 100Ah LiFePO4 batteries).
What is the difference between a 12V 100Ah LiFePO4 battery and a 12V 100Ah Mini battery?
The primary difference lies in their physical size:
12V 100Ah battery dimensions: L260 x W168 x H209mm
Mini batterydimensions: L229 x W138 x H208mm
How do I download the WattCycle App?
You can search for WattCycle on Google Play or Apple Store, and you will find the app named WattCycle.
What data can I view through the WattCycle App?
After you connect the battery, you can see the state of charge (SOC), temperature, voltage & current, control battery charging and discharging, and warnings on the data center interface. In the advanced settings, you can set the maximum charge and discharge current and temperature.
What’s the difference between the 12V 100Ah LiFePO4 battery, 12V 100Ah Mini bluetooth battery, and 12V 100Ah Mini battery?
Size Comparison:
- 12V 100Ah Standard Battery Dimensions: L260 × W168 × H209mm
- 12V 100Ah Mini Battery & 12V 100Ah Mini Bluetooth Battery Dimensions: L229 × W138 × H208mm
Functional Differences:
- 12V 100Ah LiFePO4 Battery & 12V 100Ah Mini Battery:
Low-Temperature Protection: Automatically stops discharging when temperatures drop below -20°C to prevent damage.
No Bluetooth Connectivity. - 12V 100Ah Mini Bluetooth Battery:
Low-Temperature Protection: Same as above.
Bluetooth Monitoring: Allows real-time tracking of battery status (e.g., voltage, charge level, temperature) via a smartphone app.
How should I discharge my WattCycle 12V LiFePO4 batteries in Sub-Zero temperatures?
No worries! All WattCycle LiFePO4 batteries feature built-in low-temperature protection, allowing safe discharge even at temperatures as low as -20°C. This means that devices that are operated in freezing temperatures can continue to be reliably supplied with power.
How many hours does a 12V 200Ah LiFePO4 battery last?
The battery’s runtime is influenced by multiple factors, including its capacity, connected load, and condition. For example, a new battery performs better than a used one, as its capacity slightly decreases with repeated charge cycles. However, you can estimate runtime using a simple formula based on power consumption and battery capacity:
Runtime (hours) = Battery Capacity (Wh) / Total Device Power Consumption (W)
Example:
If you have a 12V 200Ah LiFePO4 battery and connect a 50W lamp and a 50W speaker, the runtime will be:
2560Wh / (50W + 50W) = 25.6 hours
Is it better to have two 12V 100Ah LiFePO4 batteries or one 12V 200Ah LiFePO4 battery?
Two 12V 100Ah LiFePO4 batteries in parallel and a single 12V 200Ah LiFePO4 battery provide the same total capacity (200Ah). However, using a single 200Ah battery offers key advantages:
- Consistency & Stability
A single battery ensures uniform cell aging, voltage balance, and consistent performance.
Parallel configurations risk imbalances due to differences in internal resistance or slight capacity variations between batteries. - Simpler Setup
Fewer wiring connections reduce complexity and potential failure points.
Saves space and minimizes installation effort. - Compact Design
A single 12V 200Ah LiFePO4 battery occupies less physical space than two 12V 100Ah LiFePO4 batteries.
When to Choose Two 12V 100Ah LiFePO4 Batteries:
Redundancy: If one battery fails, the other can still provide partial power.
Scalability: Easier to expand capacity incrementally (e.g., adding more batteries later).
Final Recommendation:
For most applications (e.g., solar storage, RVs, backup power), a single 12V 200Ah LiFePO4 battery is preferred for simplicity, reliability, and space efficiency. Use parallel setups only if redundancy or scalability is a critical priority.
How long will a 12V 280Ah Mini battery last?
Battery runtime is influenced by multiple factors, including battery capacity, connected load, and the battery’s condition. For example, a new battery performs better than a used one, as its capacity slightly decreases with repeated charge cycles. However, you can estimate runtime using a simple formula based on power consumption and battery capacity:
Runtime (hours) = Battery Capacity (Wh) / Total Device Power Consumption (W)
Example:
If you have a 12V 280Ah Mini battery and connect a 50W lamp and a 50W speaker, the runtime will be:
3584Wh / (50W + 50W) = 35.84 hours
This straightforward formula helps estimate runtime under different loads. Always consider real-world factors like temperature and battery aging for more accurate predictions.