How to Choose a Battery Pack Manufacturer for Your Product

Choosing the right battery pack manufacturer is one of the most important decisions when developing an EV, e-bike, drone, solar system, UPS, robotics product or industrial equipment.

A good battery manufacturer should do more than simply assemble cells. The right partner should understand your voltage, capacity, current, dimensions, cell chemistry, BMS, charging requirements, safety requirements and application.

Lion Battery provides custom lithium battery pack design and manufacturing for OEMs, startups, equipment manufacturers and businesses. Its listed capabilities include custom pack design, cell matching, BMS integration, testing, OEM/ODM manufacturing and private-label production.

1. Understand Your Battery Requirements First

Before contacting a manufacturer, prepare the basic specifications of your product.

If you don’t know all these specifications, a capable manufacturer should be able to help determine them from your application requirements. Lion Battery’s custom battery process includes cell selection, configuration, BMS selection and pack design.

2. Check Whether the Manufacturer Actually Manufactures Batteries

One important question is:

Does the company manufacture the battery pack or only resell finished batteries?

Ask about:

• Cell testing
• Cell matching
• Spot welding
• BMS installation
• Wiring and assembly
• Enclosure assembly
• Capacity testing
• Charge/discharge testing
• Final inspection

A manufacturer with control over these processes can generally provide more flexibility for customized battery development.

Lion Battery lists cell testing, cell matching, pack assembly, BMS installation, charge/discharge testing and final quality inspection as part of its manufacturing process.

3. Check the Battery Cell Quality

The battery cell is one of the most important components of the pack.

Ask the manufacturer:

• Which cell brand is being used?
• Is the cell genuine?
• What is the cell capacity?
• What is the continuous discharge rating?
• What is the cell chemistry?
• Are cells tested before assembly?
• Are cells matched?
• Can the manufacturer provide the cell datasheet?

Common lithium battery cell formats include:

• 18650
• 21700
• Prismatic
• Pouch

For example, Lion Battery lists 18650, 21700 and prismatic-cell battery packs among its custom manufacturing capabilities.

4. Select the Correct Battery Chemistry

The manufacturer should help you select the chemistry according to your application.

NMC / Li-ion

Often selected where:

• High energy density is important
• Compact size is required
• Weight is critical
• Higher voltage applications are required

Common applications include:

• E-bikes
• Electric scooters
• EVs
• Drones
• Robotics
• Portable equipment

LiFePO4

Often considered for applications where:

• Long cycle life is important
• Safety and thermal stability are priorities
• Weight and volume constraints are less restrictive

Typical applications include:

• Solar storage
• ESS
• UPS
• Inverters
• Telecom
• Industrial backup

Lion Battery manufactures both NMC/Li-ion and LiFePO4 battery packs for different applications.

5. Check BMS Capability

A good battery manufacturer should understand that the BMS must be selected according to the complete battery system, not simply by voltage.

Check:

• Series configuration
• Continuous current
• Peak current
• Charging current
• Cell chemistry
• Temperature sensors
• Balancing
• Communication requirements
• Connector configuration

Depending on the application, options may include:

• Standard BMS
• Smart BMS
• Bluetooth BMS
• CAN BMS
• RS485 BMS
• UART
• Active balancing BMS

Lion Battery lists standard and smart BMS options, including CAN, RS485, UART and Bluetooth depending on application compatibility.

6. Ask About Battery Testing

Don’t select a manufacturer based only on the battery’s price.

Ask:

What tests are performed before delivery?

A proper battery testing process can include:

• Cell voltage testing
• Internal resistance testing
• Capacity testing
• Pack voltage testing
• Charge testing
• Discharge testing
• BMS protection testing
• Cell balancing
• Temperature monitoring
• Communication testing
• Final inspection

These are among the testing capabilities listed by Lion Battery for custom battery manufacturing.

7. Check Custom Dimensions

If the battery is going inside your product, standard battery sizes may not work.

The manufacturer should be able to customize:

• Length
• Width
• Height
• Shape
• Mounting points
• Connector position
• Cable exit
• BMS location
• Enclosure
• Weight

For example, an e-bike battery may need to fit inside a specific frame, while a drone battery may have strict weight and dimensional limits.

Lion Battery lists customization of battery dimensions, enclosure, connectors and pack design.

8. Ask About Prototype Development

For a new product, don’t immediately order thousands of batteries.

A better approach is:

Requirement → Design → Prototype → Testing → Approval → Production

A manufacturer that supports prototype development can help identify problems before mass production.

Lion Battery describes both OEM and ODM workflows from prototype development through production.

9. Check OEM and ODM Capability

Understand the difference.

OEM

You provide the approved battery specifications/design.

Your Specification → Manufacturer → Battery Production

ODM

You provide the product/application requirements and the manufacturer assists with:

• Cell selection
• Battery configuration
• BMS selection
• Pack design
• Enclosure
• Prototype
• Testing

Lion Battery offers both OEM and ODM battery development for custom applications.

10. Check Private-Label Capability

If you are selling batteries under your own brand, ask whether the manufacturer can provide:

• Logo
• Product labels
• Model number
• Serial number
• QR code
• Packaging
• Technical labels
• Private-label production

Private-label manufacturing allows a business to sell a battery under its own brand while the manufacturing is handled by the battery manufacturer.

11. Compare Manufacturers on More Than Price

The cheapest quotation is not always the best option.

Compare:

A battery pack with a lower initial price can become expensive if it has poor cells, inconsistent capacity or inadequate technical support.

12. Check Technical Support

A battery is part of a larger system.

Your manufacturer should be able to discuss:

• Controller compatibility
• Charger voltage
• BMS settings
• Motor current
• Solar inverter compatibility
• Communication protocols
• Thermal management
• Mechanical mounting
• Charging requirements

This becomes particularly important for EV, solar/ESS, robotics and industrial products.

13. Check Production Scalability

Your requirements may change from:

Prototype → 10 units → 100 units → 1,000+ units

Before selecting a manufacturer, ask whether they can support your expected future production volume.

A suitable OEM partner should ideally be able to maintain consistent specifications as production increases.

Lion Battery lists prototype development, small-batch production, bulk manufacturing and OEM/ODM services among its capabilities.

14. Ask for a Proper Battery Datasheet

Before approving a production battery, request a technical datasheet containing information such as:

• Model number
• Battery chemistry
• Nominal voltage
• Capacity
• Energy
• Maximum charge current
• Maximum discharge current
• Charge voltage
• Cut-off voltage
• Dimensions
• Weight
• BMS specification
• Connector
• Operating temperature
• Cycle-life information
• Testing information

This makes it easier to compare different manufacturers and avoid specification misunderstandings.

15. Choose a Manufacturer Near Your Project When Practical

For customers in Gujarat, working with a manufacturer in the state can make prototype discussions, technical visits, sample approval and communication easier.

Lion Battery’s manufacturing addresses are listed in Umargam, Valsad, Gujarat, and the company serves customers across Gujarat and India.

Battery Manufacturer Selection Checklist

Before placing an order, ask these 10 questions:

1. What cell brand and model will you use?

2. Can you provide a battery datasheet?

3. Do you test and match cells before assembly?

4. Which BMS will be installed?

5. What capacity testing is performed?

6. Can you manufacture a prototype?

7. Can you customize the enclosure and dimensions?

8. Can you provide OEM/private-label production?

9. What is the minimum order quantity?

10. What technical and after-sales support is provided?

Why Choose Lion Battery for Custom Battery Packs?

Lion Battery provides custom lithium battery pack manufacturing in Umargam, Gujarat for businesses requiring application-specific battery solutions.

Capabilities include:

• Custom Li-ion battery packs
• NMC battery packs
• LiFePO4 battery packs
• 18650 battery packs
• 21700 battery packs
• EV batteries
• E-bike batteries
• Electric scooter batteries
• Drone batteries
• Solar batteries
• ESS batteries
• UPS batteries
• Industrial battery packs
• Custom BMS integration
• Cell matching
• Battery testing
• OEM manufacturing
• ODM development
• Private-label manufacturing

Custom Battery Manufacturing Process

Requirement Analysis
↓
Battery Design
↓
Cell Selection & Testing
↓
Cell Matching
↓
S/P Configuration
↓
BMS Selection
↓
Prototype Manufacturing
↓
Charge & Discharge Testing
↓
Customer Approval
↓
Production
↓
Final Quality Inspection

What Information Should You Send for a Battery Quote?

To get an accurate quotation, provide:

1. Application
2. Required voltage
3. Required capacity
4. Continuous current
5. Peak current
6. Battery dimensions
7. Maximum weight
8. Cell preference
9. BMS requirement
10. Connector type
11. Communication requirement
12. Required quantity

Lion Battery specifically recommends providing application, voltage, capacity, current, dimensions, cell preference, BMS, connector and quantity for custom battery quotations.

Contact Lion Battery

For custom battery pack manufacturing, OEM/ODM battery production, prototype development and lithium battery solutions, contact Lion Battery.

Phone / WhatsApp: +91-9724991737

Email: info@lionbattery.in

Location: Umargam, Valsad, Gujarat

Contact Lion Battery