When ordering a custom lithium battery pack, providing the right technical information helps the manufacturer select the appropriate cells, BMS, wiring, charger, enclosure and battery configuration.

Whether you need a battery for an electric vehicle, e-bike, scooter, drone, solar system, robotics, UPS or industrial equipment, the more complete your requirements are, the easier it is to design a suitable battery pack.

1. Tell Us the Battery Application

First, explain where and how the battery will be used.

For example:

• Electric scooter
• E-bike
• Electric motorcycle
• EV
• Drone / UAV
• Agriculture drone
• Robotics
• ROV / UGV / AGV / AMR
• Solar energy storage
• UPS / inverter
• Industrial equipment
• Portable equipment
• Medical or electronic equipment
• Prototype or R&D project

The application determines the required voltage, current, capacity, battery chemistry, BMS and mechanical design.

2. Required Voltage

Tell the manufacturer your required battery voltage.

Common examples include:

Important: Specify whether the voltage refers to nominal voltage, fully charged voltage, or the equipment’s required operating voltage.

3. Required Capacity (Ah)

Tell us the required battery capacity in Ah (ampere-hours).

Examples:

• 36V 10Ah
• 51.2V 50Ah
• 60V 30Ah
• 72V 40Ah
• 48V 20Ah
• 12.8V 100Ah

If you don’t know the required Ah, provide the load power and required operating time, and the battery can be sized from those requirements.

A basic energy calculation is:

Energy (Wh) = Voltage (V) × Capacity (Ah)

For example:

48V × 20Ah = 960Wh

4. Maximum Current Requirement

This is one of the most important specifications.

Provide:

• Continuous current
• Maximum/peak current
• Starting current, if applicable
• Motor/controller current
• Typical operating current

For an EV application, provide the motor power and controller current if available.

For example:

Motor: 1500W
Battery: 48V
Controller: 30A continuous / 50A peak

This information helps determine the appropriate cells, BMS and wiring.

5. Battery Chemistry

Tell us which chemistry you require, if already specified.

Common options include:

NMC / Li-ion

Suitable for applications where relatively high energy density and compact size are important.

LiFePO₄ (LFP)

Often selected for applications where cycle life, thermal characteristics and energy-storage requirements are important.

If you are unsure whether NMC or LiFePO₄ is appropriate, provide your application, voltage, capacity, current, dimensions and operating conditions so the requirements can be evaluated.

6. Battery Dimensions

Provide the maximum available space for the battery.

Include:

• Length
• Width
• Height
• Maximum weight
• Mounting limitations

For example:

Maximum battery size: 300 × 150 × 100 mm

A drawing, CAD file or photograph of the available space can be especially useful.

7. Required Weight

If weight is important, specify the maximum acceptable battery weight.

This is particularly important for:

• Drones
• E-bikes
• Racing vehicles
• Portable equipment
• Robotics
• Aerospace-related applications

A weight limit can influence the choice of cell type, chemistry and pack configuration.

8. BMS Requirements

Tell us whether you need a standard or smart BMS.

Possible requirements include:

• Overcharge protection
• Over-discharge protection
• Over-current protection
• Short-circuit protection
• Temperature protection
• Cell balancing
• Bluetooth monitoring
• CAN communication
• RS485
• UART
• Display connection

Also provide the required continuous and peak BMS current.

9. Charging Requirements

Provide the charger information whenever possible.

For example:

• Charger output voltage
• Charger current
• Charging time requirement
• Existing charger model
• Connector type

The charger must be compatible with the battery chemistry and series configuration.

10. Connector & Cable Requirements

Specify your preferred output connector if you have one.

Examples include:

• XT30
• XT60
• XT90
• Anderson connector
• DC connector
• Custom connector

Also provide:

• Cable length
• Cable gauge, if specified
• Positive/negative polarity
• Separate charge and discharge ports, if required

11. Communication Requirements

For smart applications, tell us whether the battery needs communication with the vehicle or equipment.

Possible interfaces include:

• CAN
• RS485
• UART
• Bluetooth
• Display communication

If your equipment has a communication protocol or CAN specification, provide the available documentation.

12. Enclosure Requirements

Tell us how the battery should be physically packaged.

You can specify:

• Plastic enclosure
• Aluminium enclosure
• Custom metal enclosure
• Carbon fiber enclosure
• Heat-shrink pack
• Custom battery box
• Wall-mounted enclosure

Also provide requirements for:

• Mounting holes
• Brackets
• Handles
• Cable exits
• Connector positions
• BMS access
• Display openings

13. Operating Environment

Tell the manufacturer where the battery will operate.

Important information includes:

• Indoor or outdoor use
• Ambient temperature
• Humidity
• Dust exposure
• Water exposure
• Vibration
• Shock
• Altitude
• Continuous or intermittent operation

This information can affect the enclosure, cell selection, BMS and thermal design.

14. Required Quantity

Tell us how many battery packs you need.

For example:

• 1 prototype
• 5 prototype units
• 50 units
• 100 units
• 500 units
• Regular production requirement

Prototype and production requirements may involve different manufacturing considerations.

15. Expected Production Timeline

If you have a target launch date, provide:

• Prototype deadline
• Testing deadline
• Production start date
• Required delivery schedule

This helps with planning from prototype development to production.

Custom Battery Pack Requirement Checklist

You can send the following information to a battery manufacturer:

What If You Don’t Know All the Specifications?

You don’t need to know every technical specification before contacting a custom battery manufacturer.

At minimum, provide:

1. Application
2. Required voltage
3. Required capacity or operating time
4. Maximum current/load
5. Available battery dimensions
6. Battery photo/drawing, if replacing an existing pack
7. Quantity required

The manufacturer can then help determine the appropriate cell configuration, chemistry, BMS, wiring, charger and enclosure design.

Custom Battery Pack Manufacturing by Lion Battery

Lion Battery provides custom lithium battery pack solutions for EVs, e-bikes, scooters, drones, robotics, solar, ESS, UPS, industrial equipment and OEM applications.

Lion Battery can support requirements involving 18650 and 21700 cells, NMC and LiFePO₄ chemistry, custom BMS integration, cell matching, battery pack assembly, testing and custom enclosure solutions.

For a custom battery quotation, contact:

Phone / WhatsApp: +91-9724991737
Email: info@lionbattery.in
Location: Umargam, Valsad, Gujarat, India

Lion Battery Contact Us