12V Lithium Battery Manufacturer
Custom 12V lithium battery packs engineered for RVs, marine equipment, solar energy storage, mobility devices, power tools, security systems, and industrial applications.
Nuranu Battery designs and manufactures 12V lithium battery systems for OEM, ODM, replacement, and custom applications. Choose from lithium-ion/NMC and LiFePO4 chemistries, custom capacities, battery enclosures, connectors, BMS configurations, communication interfaces, and charging requirements.
Whether you need a compact 12V 5Ah battery pack or a high-capacity 12V 100Ah, 200Ah, or 300Ah battery, our engineering team can develop the battery around your equipment rather than forcing your product to fit a standard battery.
12V Lithium Battery Solutions for OEM Applications
A 12V lithium battery is one of the most widely used battery platforms for portable equipment, vehicles, backup power, and energy storage. However, “12V” can describe different battery chemistries and electrical configurations.
For example, a LiFePO4 battery designed for a 12V-class application commonly has a 12.8V nominal voltage, while a lithium-ion/NMC pack may use a different cell configuration depending on the required operating voltage.
For this reason, selecting a 12V battery is not simply a matter of choosing the voltage.
The battery must also be matched to:
- Required capacity
- Continuous discharge current
- Peak discharge current
- Charging voltage
- Battery chemistry
- BMS protection
- Operating temperature
- Available installation space
- Connector and terminal configuration
- Communication protocol
- Certification requirements
Nuranu helps OEM customers specify these parameters before production.
12V Lithium Battery Specifications
Our 12V battery platform can be configured for different capacities, dimensions, discharge rates, and applications.
| Battery Model | Nominal Voltage | Typical Energy* | Typical Applications |
|---|---|---|---|
| 12V 5Ah | 12V-class | ~64Wh | Portable equipment, backup power |
| 12V 10Ah | 12V-class | ~128Wh | Tools, medical equipment |
| 12V 20Ah | 12V-class | ~256Wh | Mobility equipment, scooters |
| 12V 50Ah | 12V-class | ~640Wh | Marine, camping, solar backup |
| 12V 100Ah | 12V-class | ~1,280Wh | RV, marine, solar, golf carts |
| 12V 200Ah | 12V-class | ~2,560Wh | RV, off-grid energy storage |
| 12V 300Ah | 12V-class | ~3,840Wh | Large energy storage, commercial applications |
| Custom | Custom | Custom | OEM / ODM applications |
- Energy is calculated using nominal voltage × rated capacity. Actual usable energy depends on battery chemistry, BMS settings, discharge conditions, temperature, and application requirements.
Need a different capacity?
We can develop custom 12V battery packs according to your required Ah, Wh, dimensions, current, and runtime.
12V LiFePO4 Battery
For many deep-cycle and energy-storage applications, 12V LiFePO4 batteries are an excellent alternative to traditional lead-acid batteries. A typical 12V-class LiFePO4 battery uses a 4-cell series configuration and has a nominal voltage of approximately 12.8V. The exact charging voltage and operating range depend on the cell specification and BMS configuration.
Why Choose 12V LiFePO4?
- High usable energy
- Long cycle life
- Lower maintenance requirements
- Stable discharge characteristics
- Integrated BMS protection
- Suitable for deep-cycle applications
- Lower weight than comparable lead-acid systems
- Available in compact and high-capacity configurations
12.8V LiFePO4 battery packs are commonly available across a wide range of capacities, including small portable packs and large 100Ah–300Ah systems.
12V Lithium-Ion Battery
For applications where high energy density, compact dimensions, and high power output are important, lithium-ion/NMC chemistry can be a better choice.
Nuranu can configure 12V-class lithium-ion battery packs using cylindrical or other suitable cell formats depending on your application.
Typical applications include:
- Cordless equipment
- Power tools
- Portable electronics
- Medical devices
- Robotics
- Security equipment
- Cleaning equipment
- Lawn and garden equipment
- Portable power systems
The cell chemistry is selected according to your required energy density, discharge rate, operating temperature, cycle life, dimensions, and cost target.
Custom 12V Lithium Battery for Different Applications
RV Electrical Systems
Nuranu manufactures reliable 12V lithium battery packs for RVs, motorhomes, camper vans, and travel trailers.
Marine Equipment
Designed to handle vibration, humidity, changing temperatures, restricted installation space, high discharge demands, and frequent cycling.
Solar Energy Storage
Nuranu supplies battery systems for off-grid solar, backup power, solar lighting, remote equipment, portable generators, telecom, security.
Golf Carts
Nuranu provides battery packs for golf carts, utility carts, neighborhood electric vehicles, maintenance vehicles, small electric vehicles, and ground-support equipment.
Mobility Equipment
Nuranu develops lightweight battery packs for electric wheelchairs, mobility scooters, patient and stair lifts, personal mobility devices, and portable medical equipment.
Power Tools
Nuranu develops battery packs for cordless drills, impact drivers, screwdrivers, vacuum cleaners, lawn and hedge equipment, portable cleaning machines, and professional tools.
Security Systems
Nuranu develops compact 12V backup battery systems for CCTV, alarms, access control, electric gates, barriers, sensors, intrusion detection, and communication equipment.
Emergency Lighting
Nuranu develops 12V lithium battery packs for emergency exit lights, portable emergency lamps, safety lighting, backup lighting, industrial lighting, and emergency communication equipment.
12V Lead-Acid Replacement Battery
One of the most common reasons customers choose a 12V lithium battery is to replace an existing lead-acid battery.
A lithium replacement project should not be based only on physical dimensions.
The following parameters should be checked:
| Parameter | Existing Battery | Replacement Requirement |
|---|---|---|
| Nominal Voltage | 12 V | 12 V-class |
| Capacity | Ah | Equivalent or optimized |
| Dimensions | L × W × H | Same or redesigned |
| Terminal | Various | Customizable |
| Discharge Current | Application dependent | Match or exceed |
| Charger | Lead-acid profile | Verify compatibility |
| BMS | Usually external/internal | Integrated/custom |
| Weight | Usually higher | Lithium optimized |
| Communication | Usually limited | Optional smart BMS |
A properly engineered replacement battery can reduce weight, improve usable energy, and simplify maintenance.
However, the charging system and BMS must be evaluated before replacing a lead-acid battery with lithium.
12V Lithium Battery BMS
The Battery Management System is one of the most important components in a custom 12V battery pack.
Depending on the application, Nuranu can integrate BMS functions such as:
- Overcharge protection
- Over-discharge protection
- Overcurrent protection
- Short-circuit protection
- Over-temperature protection
- Low-temperature protection
- Cell balancing
- Voltage monitoring
- Current monitoring
- SOC estimation
- SOH monitoring
- Bluetooth communication
- CAN communication
- RS485 communication
- UART communication
For OEM products, the BMS can be configured around the electrical and communication requirements of the host system.
Custom 12V Lithium Battery Pack Design
A standard battery may work for a standard application. But OEM products often require something different.
Nuranu can customize the complete battery system, including:
Custom Voltage
12V-class battery configurations can be engineered around your equipment’s actual operating voltage and controller requirements.
Custom Capacity
Choose the required Ah and Wh based on runtime, load profile, and available space.
Custom Battery Enclosure
Battery housings can be designed around your mechanical dimensions, mounting points, connectors, and installation environment.
Custom Connector
We can integrate the connector required by your equipment, including wire harnesses and custom terminal configurations.
Custom BMS
BMS protection parameters can be selected according to current, temperature, communication, and system requirements.
Custom Communication
For smart applications, CAN, RS485, UART, Bluetooth, or other communication solutions can be evaluated.
Custom Charging
Charging voltage, current, charger interface, and charging strategy can be matched to the battery chemistry and application.
Custom 12V Battery Capacity
Battery capacity determines how much energy the battery can store.
A simple calculation is:
Energy (Wh) = Voltage (V) × Capacity (Ah)
For a 12.8V LiFePO4 battery:
- 10Ah ≈ 128Wh
- 20Ah ≈ 256Wh
- 50Ah ≈ 640Wh
- 100Ah ≈ 1,280Wh
- 200Ah ≈ 2,560Wh
- 300Ah ≈ 3,840Wh
Actual available energy depends on the battery chemistry, discharge conditions, BMS limits, temperature, and application.
If you know the required operating time and load power, Nuranu can help calculate the required battery capacity.
12V Battery Series and Parallel Configuration
A 12V battery can also be used as a building block for higher-voltage or higher-capacity systems when the battery design supports the required configuration.
For example:
2 × 12V-class batteries in series → approximately 24V-class system
3 × 12V-class batteries in series → approximately 36V-class system
4 × 12V-class batteries in series → approximately 48V-class system
Parallel configurations can be used to increase available capacity when supported by the battery and BMS design.
Series and parallel configurations should be confirmed with the battery manufacturer before implementation because BMS architecture, balancing, charging, protection, and communication requirements can vary.
Custom 12V Battery Enclosure
The battery enclosure is often just as important as the cells.
Nuranu can customize:
- Length
- Width
- Height
- Mounting points
- Handle design
- Brackets
- Terminal position
- Connector location
- Cable exit
- Display openings
- Ventilation
- Waterproofing
- Heat dissipation
- Material selection
Common enclosure materials may include:
- ABS
- PC
- Aluminum
- Sheet metal
- Custom molded housings
If you already have a CAD drawing or existing battery housing, our engineers can use it as the starting point for battery development.
12V Battery Manufacturing Process
Our custom battery development process can be structured around your product requirements.
1. Application Analysis
We review:
- Equipment type
- Voltage
- Current
- Runtime
- Operating environment
- Charging method
- Installation space
2. Cell Selection
Cell chemistry, format, capacity, discharge rate, and supplier are selected according to the application.
3. Battery Configuration
We determine the appropriate series and parallel configuration.
4. BMS Design
Protection parameters and communication requirements are defined.
5. Mechanical Design
The enclosure, connectors, mounting system, and internal layout are developed.
6. Prototype
Engineering samples are produced for functional testing.
7. Testing
The battery is evaluated for electrical, mechanical, thermal, and application-specific requirements.
8. Certification
Required compliance documentation and testing can be coordinated according to the target market.
9. Mass Production
After approval, the battery moves into controlled production and quality inspection.
12V Battery Quality Control
Every custom battery project should include quality control from the cell level through final pack assembly.
Typical inspection points include:
Cell Inspection
- Cell voltage
- Internal resistance
- Capacity
- Cell consistency
- Appearance
Pack Assembly
- Welding quality
- Insulation
- Wiring
- Connector installation
- Polarity
- Mechanical assembly
BMS Testing
- Overcharge protection
- Over-discharge protection
- Overcurrent protection
- Temperature protection
- Cell balancing
- Communication functions
Final Battery Testing
- Voltage
- Capacity
- Discharge performance
- Charging performance
- BMS operation
- Appearance
- Dimensions
- Weight
Application-specific testing can also be added to the production inspection plan.
12V Lithium Battery Certifications & Compliance
Different markets and applications require different documentation and certification.
Depending on the battery application and destination market, support may include:
- UN38.3
- IEC 62133
- CE
- MSDS
- UL-related requirements
- Transportation documentation
- RoHS
- Regional compliance requirements
Certification requirements should be determined at the beginning of the project because cell chemistry, BMS design, enclosure construction, and production configuration can affect the applicable testing requirements.
OEM / ODM 12V Lithium Battery Manufacturing
Nuranu works with companies that need more than an off-the-shelf battery. We can support:
OEM Battery Manufacturing
You provide the product requirements, specifications, drawings, or existing battery sample.
We develop and manufacture the battery according to your requirements.
ODM Battery Development
If you need a battery solution but do not have a complete design, our engineering team can help develop:
- Cell configuration
- BMS
- Enclosure
- Connector
- Wiring
- Charging solution
- Communication system
- Labeling
- Packaging
This allows you to develop a battery around your product instead of adapting your product to an existing battery.
Why Choose Nuranu for 12V Lithium Batteries?
Nuranu focuses on battery solutions for OEM and industrial applications.
Custom Engineering
Your battery can be designed around voltage, capacity, dimensions, current, BMS, connector, and communication requirements.
Flexible Capacity
From compact low-capacity battery packs to large energy-storage systems, capacity can be customized around your application.
BMS Integration
Protection and monitoring functions can be configured according to your equipment.
Custom Mechanical Design
Battery enclosures can be designed to fit your existing equipment and installation environment.
OEM/ODM Support
From prototype development to production, Nuranu can support custom battery projects.
How to Request a Custom 12V Lithium Battery
To receive an accurate battery recommendation and quotation, please provide as much of the following information as possible:
- Required voltage
- Required capacity or runtime
- Continuous discharge current
- Peak discharge current
- Charging voltage/current
- Battery chemistry preference
- Battery dimensions
- Connector type
- Operating temperature
- Application
- Required communication interface
- Estimated order quantity
- Target market
- Required certifications
If you already have an existing battery, send us the battery model, label, photos, dimensions, or datasheet.
Our engineers can use the existing battery as the starting point for a replacement or upgraded design.
12V Lithium Battery FAQ
What is a 12V lithium battery?
A 12V lithium battery is a rechargeable battery system designed for equipment using a 12V-class electrical platform. The exact nominal voltage depends on the battery chemistry and cell configuration. For example, LiFePO4 batteries designed for 12V applications commonly have a nominal voltage of 12.8V.
Is a 12V lithium battery actually 12V?
Not necessarily.
“12V” is often used as a system or application classification. A 12V LiFePO4 battery typically has a nominal voltage of 12.8V, while its actual voltage changes during charging and discharge.
Always check the required operating and charging voltage of your equipment before selecting a battery.
What is the difference between a 12V lithium-ion and 12V LiFePO4 battery?
The main differences are chemistry, energy density, voltage characteristics, thermal behavior, cycle-life characteristics, and application suitability.
LiFePO4 is commonly selected for deep-cycle and energy-storage applications, while NMC/lithium-ion may be preferred where compact size and higher energy density are priorities.
Can a 12V lithium battery replace a 12V lead-acid battery?
In many applications, yes, but compatibility must be verified.
The replacement battery should match the system’s voltage, charging requirements, current requirements, physical dimensions, and BMS requirements.
Can you make a custom 12V 100Ah lithium battery?
Yes. Nuranu can develop custom 12V 100Ah battery packs with custom dimensions, BMS, connectors, enclosure, communication interfaces, and other specifications.
Can multiple 12V batteries be connected together?
Depending on the battery design, 12V-class batteries may be configured in series or parallel to increase system voltage or capacity.
The exact configuration should be approved by the battery manufacturer to ensure the BMS, charging system, and protection architecture are compatible.
Can you make a 12V battery with a custom enclosure?
Yes. Custom battery housings can be designed around your available installation space, mounting holes, connectors, cable routing, and environmental requirements.
Can you add Bluetooth or CAN communication?
Yes. Smart BMS solutions can be configured with communication interfaces such as Bluetooth, CAN, RS485, or UART depending on the application.
What information do you need for a custom 12V battery?
The most useful information includes voltage, capacity, current, dimensions, application, charging method, connector, operating temperature, and required certifications.
If you have an existing battery, sending its label and dimensions can significantly speed up the engineering process.
Need a Custom 12V Lithium Battery?
Tell us your voltage, capacity, dimensions, current, and application. Our engineering team will help you select the appropriate cell chemistry, battery configuration, BMS, enclosure, and charging solution.
