Custom Battery Pack Manufacturer

Custom Lithium Battery Solutions Designed for Your Product

Nuranu provides custom lithium battery pack design, engineering, and OEM/ODM manufacturing services for companies that need batteries built around their products.

From a simple voltage or capacity requirement to a fully customized battery system with an enclosure, smart BMS, Bluetooth communication, waterproof protection, certification support, and private labeling, our engineering team helps turn your battery requirements into production-ready solutions.

We work with product manufacturers, distributors, engineering companies, startups, and established brands across a wide range of industries.

Custom Battery Solutions From Design to Production

A battery is not simply a collection of cells. The right battery pack must match the electrical, mechanical, thermal, safety, and operating requirements of the final product.

Nuranu provides an integrated battery development process covering:

Battery requirement analysis
Cell selection
Voltage and capacity design
Battery pack configuration
BMS integration
Battery enclosure design
Connector selection
Charging system compatibility
Waterproof battery design
Communication functions
Prototype development
Performance testing
Certification support
Mass production
OEM / ODM manufacturing

This allows customers to work with one battery manufacturing partner from initial concept through commercial production.

Our Custom Battery Services

Explore Nuranu’s complete custom battery engineering and manufacturing capabilities.

Custom Voltage Battery Pack

Need a battery pack with a specific voltage output?

Nuranu designs custom battery configurations according to your device’s electrical requirements.

We can optimize:

Nominal voltage
Maximum voltage
Minimum operating voltage
Series cell configuration
BMS specifications
Charging requirements

Custom Capacity Battery Pack

Different applications require different energy capacities.

Nuranu can customize battery capacity based on:

Required runtime
Available installation space
Power consumption
Weight limitations
Cell specifications
Discharge requirements

Whether you need a compact battery or extended-runtime battery pack, our engineers can optimize the configuration.

Custom Battery Enclosure

The battery enclosure protects internal cells and electronics while allowing the battery to fit precisely inside your product.

Nuranu supports customized:

Battery housing
Plastic enclosures
Structural components
Mounting systems
Connector openings
Cable exits
Internal cell arrangement

Custom enclosure design is especially important when the available installation space is limited.

Smart BMS Integration

A Battery Management System is an essential part of a rechargeable lithium battery pack.

Nuranu can integrate customized BMS solutions for:

Overcharge protection
Over-discharge protection
Over-current protection
Short-circuit protection
Temperature monitoring
Cell balancing
Battery status monitoring

For advanced products, the BMS can also be configured to communicate with the host device.

Custom Lithium Battery Pack Design

Built Around Your Product Requirements

Every custom battery project starts with the requirements of the final product. Nuranu evaluates:

Electrical Requirements

Nominal voltage
Operating voltage
Capacity
Continuous discharge current
Peak current
Charging current
Runtime

Mechanical Requirements

Maximum dimensions
Available installation space
Battery orientation
Mounting points
Connector position
Cable length

Environmental Requirements

Operating temperature
Storage temperature
Humidity
Water exposure
Vibration
Shock
Outdoor use

Communication Requirements

BMS communication
Bluetooth
UART
SMBus
Other communication interfaces

This engineering-first approach helps ensure that the battery is designed around the actual product rather than forcing an off-the-shelf battery into an unsuitable application.

Custom Battery Chemistry Options

Nuranu supports different rechargeable lithium battery technologies depending on the application.

Lithium-ion Battery Packs

Lithium-ion batteries are widely used for:

Portable equipment
Power tools
Vacuum cleaners
Robotics
Industrial equipment
Consumer electronics

They offer high energy density and flexible pack configurations.

LiFePO4 Battery Packs

Lithium iron phosphate batteries are suitable for applications where safety, cycle life, and thermal stability are important.

Applications include:

Energy storage
Industrial equipment
Portable power
Solar systems
Backup power

Lithium Polymer Battery Packs

LiPo batteries are useful when the product requires:

Thin battery designs
Lightweight construction
Custom shapes
Flexible form factors

Applications include:

Consumer electronics
IoT devices
Wearables
Portable equipment

Custom Battery Pack Configurations

Nuranu can configure battery cells according to the required voltage and capacity.

Common configurations include:

Parallel configurations can also be used to increase capacity and current capability.

For example:

3S2P
4S2P
4S3P
5S2P
6S2P

The appropriate configuration depends on the required voltage, capacity, current, physical space, and cell characteristics.

Custom Battery Pack for Different Applications

Nuranu develops custom batteries for a wide range of products.

Custom Battery Enclosure Design

Fit the Battery to Your Product

Battery dimensions can become a major engineering constraint.

Nuranu can optimize:

Length
Width
Height
Cell arrangement
PCB placement
Connector location
Cable routing

A customized enclosure can help maximize the available internal space while protecting the battery assembly.

Smart BMS Battery Engineering

More Than Basic Protection

For advanced battery applications, BMS functionality can go beyond basic protection.

A customized BMS may monitor:

Cell voltage
Pack voltage
Current
Temperature
State of charge
Charging status
Fault conditions

Depending on the project, communication functions can be integrated into the battery system.

Battery Prototype Development

From Concept to Working Sample

Before mass production, Nuranu can develop battery prototypes for customer evaluation.

Prototype development may include:

Requirement analysis
Cell selection
Electrical design
BMS selection
Mechanical design
Sample assembly
Charging and discharge testing
Compatibility testing
Design optimization

Prototype validation helps identify potential issues before production tooling and mass manufacturing.

Custom Battery Testing

Quality validation is an important part of battery development. Depending on the project, testing may include:

Electrical Testing

Voltage
Capacity
Internal resistance
Charge performance
Discharge performance
Current output

Protection Testing

Overcharge
Over-discharge
Over-current
Short circuit
Temperature protection

Environmental Testing

Depending on the application:

Temperature testing
Humidity testing
Vibration testing
Shock testing
Water-resistance testing

OEM / ODM Battery Manufacturing Process

Step 1 — Requirements

Send us your:

Product specifications
Battery requirements
Drawings
Existing battery samples
Photos
Target capacity
Voltage requirements

Step 2 — Engineering Evaluation

Our engineers evaluate:

Cell configuration
Battery dimensions
BMS requirements
Connector requirements
Charging system
Production feasibility

Step 3 — Battery Design

We develop the battery pack according to the approved requirements.

Step 4 — Prototype

Initial samples are produced for evaluation and testing.

Step 5 — Validation

The battery is evaluated for:

Electrical performance
Physical compatibility
Protection functions
Charging
Discharging
Application requirements

Step 6 — Production

Once the design is approved, the battery enters mass production.

Step 7 — Quality Inspection

Finished battery packs undergo defined quality-control procedures before shipment.

Why Choose Nuranu for Custom Battery Manufacturing?

Engineering Support

We help customers turn product requirements into practical battery designs.

Flexible Customization

Battery specifications can be customized rather than limited to standard off-the-shelf configurations.

Integrated Manufacturing

Design, prototyping, testing, assembly, and production can be managed through one manufacturing partner.

OEM & ODM Support

Nuranu supports both customer-designed battery projects and engineering-assisted battery development.

Quality Control

Battery cells, electrical performance, protection functions, assembly, and finished packs can be inspected throughout the manufacturing process.

Who We Serve

Nuranu’s custom battery manufacturing services are designed for:

What Information Do We Need for a Custom Battery Quote?

To evaluate your project quickly, provide as much of the following information as possible:

Battery voltage
Required capacity
Maximum dimensions
Application
Continuous current
Peak current
Runtime target
Charging method
Connector
BMS requirements
Operating temperature
Waterproof requirements
Quantity
Target market

If you have an existing battery, sending photos, dimensions, labels, or a sample can make the engineering evaluation much faster.

Custom Battery Services FAQ

What is a custom battery pack?

A custom battery pack is a rechargeable battery assembly designed specifically around the electrical, mechanical, and operating requirements of a particular product.

Can you customize battery voltage and capacity?

Yes. Nuranu can customize voltage, capacity, cell configuration, BMS, dimensions, connectors, and other battery-pack specifications according to project requirements.

What types of lithium batteries can you manufacture?

Nuranu supports lithium-ion, LiFePO4, and lithium polymer battery pack solutions for different applications.

Can you design the battery enclosure?

Yes. Custom battery enclosures can be developed according to the available installation space, mounting requirements, connector position, and environmental conditions.

Can you integrate a smart BMS?

Yes. Nuranu can integrate BMS solutions with functions such as cell monitoring, temperature monitoring, protection, balancing, and battery communication.

Can you add Bluetooth to a battery pack?

Yes. Bluetooth-enabled battery monitoring can be integrated for suitable applications requiring wireless battery information.

Can you manufacture waterproof battery packs?

Yes. Nuranu can develop battery designs with sealing, waterproof connectors, and other environmental protection features according to the application’s requirements.

Do you provide battery certification support?

Yes. Nuranu can assist with identifying applicable battery testing and certification requirements and coordinate relevant testing based on the final product and target market.

What is your minimum order quantity?

MOQ depends on the battery design, cells, tooling, certification requirements, and production volume. Contact Nuranu with your project specifications for an evaluation.

Can you manufacture prototypes before mass production?

Yes. Prototype development can be arranged before mass production so the battery can be evaluated and optimized.

Start Your Custom Battery Project

Have a Battery Requirement?

Send Nuranu your battery specifications, product drawings, existing battery sample, photos, or basic requirements. Our engineering team can evaluate your project and recommend a suitable battery configuration.