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Custom 12V Lithium Battery Manufacturer
12V lithium batteries are widely used in industrial equipment and portable systems, where higher requirements are placed on size, weight, and runtime.
LARGE specializes in customized 12V lithium battery solutions, providing end-to-end development from cell selection and BMS design to structural engineering. This ensures an optimal balance between energy density, safety, and mechanical integration, improving overall system stability and efficiency.
12V Lithium Battery Customization Capabilities
- Chemistry Selection
NMC / NCA / LFP options available based on application requirements - Advanced Structural Customization
Optimized for space constraints, vibration resistance, and harsh operating environments - High Power Output
Supports high peak current and dynamic load conditions
- Smart BMS Development
Supports CAN / RS485 / SMBus for real-time monitoring and fault diagnostics - Safety & Thermal Management
Protection against overcharge, over-discharge, short circuit, and over-temperature for stable operation
Technical Specifications
| Nominal Voltage | 11.1V / 12.8V |
| Capacity Range | 2Ah – 100Ah |
| Charge Voltage | 12.6V / 14.6V |
| Discharge Cut-off | 9.0V – 10.0V (configurable) |
| Series Configuration | 3S / 4S |
| Discharge Rate | 0.2C – 5C |
| Cycle Life | 500 – 1500 cycles |
| Operating Temperature | -20°C ~ 60°C (standard) |
Note: Specifications can be customized based on application requirements.
12V Lithium ion Battery Pack
Selected case references, customizable for different application scenarios.
12V Lithium Battery Applications
Portable Medical Devices
Portable monitors, infusion pumps, oxygen concentrators, CPAP devices
High safety | Compact structure | Low failure rate
Industrial Instruments
Gas detectors, thermal imagers, water quality analyzers
Stable output | Lightweight | Long runtime
Security & Communication Equipment
Outdoor cameras, vibration sensors, inspection terminals
Wide temperature range | Strong anti-interference | Long standby
Robotics & Smart Devices
Service robots, inspection robots, mobile terminals
High peak power | Compact design | Stable operation
Power & Railway Inspection Equipment
Inspection terminals, infrared thermometers, rail testing devices
Vibration-resistant | Continuous stable power | Harsh environment adaptability
Outdoor & Special Operation Equipment
Portable lighting, outdoor tools, emergency equipment
Durable | Lightweight | High reliability
Looking for the Right Battery Solution?
12V Lithium ion Battery Application Case
12V 6Ah Portable Medical Monitor Lithium Battery Solution
Project Background
A listed medical device company developed a portable patient monitor for ward transfer and emergency monitoring scenarios, requiring lightweight design and stable power supply.
Project Challenges
- Stable power supply within extremely limited space
- Strict constraints on weight and size
- Continuous and stable output during monitoring
- High safety and reliability requirements for medical use
Solution
- 12V 6Ah LiFePO4 battery system for improved safety and cycle life
- Optimized low-power design for short-term continuous monitoring
- Integrated smart BMS with overcharge, over-discharge, and temperature protection
- Ultra-compact structural design for portable devices
Stable voltage output control for uninterrupted monitoring
Results
- Meets stable power requirements for transport and short-term monitoring
- Overall device size reduced by ~20%
- Supports 2–4 hours of continuous operation (depending on load)
- Improved voltage stability ensures reliable monitoring data
How to Choose Lithium Battery Chemistry
Different lithium battery chemistries offer different performance characteristics. Proper selection helps balance energy density, safety, and lifespan.
Lithium Battery Chemistry Comparison
| Parameter | NMC | NCA | LFP |
|---|---|---|---|
| Energy Density | High | Very High | Medium |
| Cycle Life | Medium | Medium | Very High |
| Safety | Medium | Medium | Very High |
| Key Feature | Balanced performance | Ultra-lightweight | High safety & long life |
| Applications | Industrial / portable | Space-constrained devices | Industrial / long-term systems |
Engineering Selection Guidelines
Prioritize lightweight & runtime → NMC / NCA
Prioritize safety & long-term stability → LFP
Balanced performance (power + runtime) → NMC
Extremely limited space → NCA
Related Lithium Battery Voltages
12V Lithium-ion Battery FAQs
Can capacity and size be customized?
Yes. Both capacity and dimensions can be customized based on your device’s structure and power consumption requirements.
What is a 12V lithium battery?
A 12V lithium battery typically refers to a lithium-ion battery system with a nominal voltage of 11.1V or 12.6V, widely used in industrial equipment and portable electronics.
What chemistries are available for 12V lithium batteries?
Common options include NMC (Nickel Manganese Cobalt), NCA (high energy density), and LFP (Lithium Iron Phosphate), selected based on application needs.
Can a 12V lithium battery replace a lead-acid battery?
In most cases, yes. However, proper matching of size, charging parameters, and BMS configuration is required for safe replacement.
How many cells are in a 12V lithium-ion battery?
A 12V lithium-ion battery typically uses:
- 3S (3 cells in series): 11.1V nominal (3.7V per cell)
- 4S (4 cells in series): 14.8V nominal (commonly used in systems labeled as 12V class)
How to charge a 12V lithium-ion battery?
Use a dedicated lithium-ion charger with CC/CV (constant current / constant voltage) charging mode.
Typical charging voltages:
- 12.6V for 3S systems
- 16.8V for 4S systems
The BMS ensures protection during the charging process.
How long does it take to charge a 12V lithium battery?
Charging time depends on battery capacity and charger current:
- Typically 2–6 hours under standard conditions (0.2C–0.5C)
- Larger capacity or lower charging current will increase charging time
Get Your Custom Lithium Battery Solution
We provide integrated support from engineering design to mass production.


