Custom 18650 Battery Pack Manufacturer
Nuranu Battery offers custom 18650 battery packs engineered for high energy density, long cycle life, and modularity. Perfect for portable devices, industrial automation, robotics, and medical equipment, our packs feature cell matching, protective enclosures, and optional BMS integration to ensure maximum performance and safety.
Custom 18650 Battery Pack Options
Discuss voltage, capacity, cell selection, BMS protection, pack dimensions, connectors, and labeling for your project. The final configuration depends on your equipment’s electrical requirements, available space, and operating conditions.
To help us evaluate your requirements, please share:
• Application and equipment model
• Operating voltage and charging requirements
• Target capacity or required runtime
• Continuous and peak discharge current, if known
• Maximum dimensions, connector, and cable requirements
• Sample quantity, estimated order volume, and destination market
If you do not have a complete specification, send photos of your existing battery, its label, and the installation space. Include drawings or a datasheet if available.
Applications of 18650 Battery Packs

Robotics
Discuss peak motor current, runtime, installation space, and communication requirements for your robot battery pack.

Medical Devices
Evaluate installation space, operating time, charger compatibility, and documentation requirements for your medical device.

Industrial Equipment
Specify operating voltage, continuous load, connector requirements, and environmental conditions for your custom battery pack.

E-bikes & Mobility Devices
Match the battery to your controller’s voltage range, current demand, mounting space, and charger requirements.
Our Standard 18650 Battery Pack Products
Compare selected configurations from our 18650 battery pack catalog. Open a product page for its listed specifications, or send your requirements to discuss a custom configuration.
| Voltage | Capacity | Application | Product details |
|---|---|---|---|
| 3.7 V | 6.0 Ah | LED fishing light | 3.7 V battery specifications |
| 7.4 V | 6.6 Ah | Water quality sampler | 7.4 V battery specifications |
| 14.8 V | 24 Ah | Flue gas analyzer | 14.8 V battery specifications |
These are catalog examples. Voltage and capacity alone do not establish suitability for your equipment. Confirm dimensions, continuous and peak current, BMS protection, connectors, and charging requirements for your project.
Customization to Fit Your Business
We understand that every business has unique power requirements. That’s why we offer fully customizable 18650 battery packs to match your exact specifications.
- Voltage and Capacity Configurations: Choose from various series (S) and parallel (P) setups to achieve your desired power output.
- Battery Management Systems (BMS): Enhance safety and performance with integrated monitoring and cell balancing.
- Connector Types and Branding: Personalize your battery packs with custom connectors and labeling for seamless integration and brand alignment.
- Packaging Solutions: Tailored packaging for efficient shipping, storage, and distribution.
Our Custom Battery Pack Process
- Requirement Analysis: Understand your device specs and power needs.
- Design & Engineering: Cell selection, configuration, and pack layout.
- Prototyping: Build and test the first functional units.
- Testing & QA: Perform cycle, thermal, and safety tests.
- Mass Production: High-quality assembly and shipping.
Advantages and Benefits of 18650 Battery Packs
High Energy Density
Maximize power output in a compact design, ideal for space-constrained applications.
Long Lifecycle
With up to 2,000 cycles, our battery packs reduce maintenance and replacement costs, ensuring long-term value.
Flexible Format
Tailor voltage, capacity, and performance to your exact specifications with flexible series and parallel setups.
Fast Charging
Minimize downtime with quick recharge capabilities, keeping your operations running smoothly.
Lightweight & Portable
Perfect for mobile and portable applications without compromising on power.
Why Choose Us as 18650 Battery Packs Supplier
When it comes to powering your devices and systems, our 18650 lithium-ion battery packs stand out for their exceptional quality, reliability, and performance. Here’s why our 18650 battery packs are the ideal choice for your needs:
Proven Reliability
Trusted globally in demanding applications like electric vehicles and industrial systems.
Quality Assurance
Each battery pack undergoes rigorous testing to ensure consistent, high-quality performance.
Competitive Pricing
Cost-effective solutions with bulk order discounts for large-scale projects.
Fast Delivery and Support
Quick turnaround times and dedicated technical assistance to keep your business moving forward.
FAQs
Q1: Can you match cells for my pack?
A: Yes, we match cells to ensure uniform capacity, voltage, and internal resistance for longer pack life.
Q2: What sizes and voltages are available?
A: We offer flexible series/parallel configurations. Voltage ranges from 3.7V to 48V+ depending on your requirements.
Q3: Is a BMS included?
A: Optional BMS can be integrated for protection and monitoring.
Q4: How long does a custom 18650 battery pack project take?
A: Please contact us to confirm prototype and production lead times for your required configuration. Send your battery specifications, order quantity, and target delivery date so we can review the project requirements and discuss the schedule before you place an order.
Q5: What certifications and test documents are available for my battery pack?
A: Documentation requirements depend on the battery design, application, and destination market. Please provide your required standards so we can confirm which reports are available for the exact pack configuration and whether additional testing is needed.
Q6: What is the minimum order quantity for custom 18650 battery packs?
Please send your required battery specifications and expected order quantity so we can confirm the minimum order quantity for your project. Include any requirements for custom connectors, an enclosure, or labeling in your inquiry.
Q7: Can I order samples before placing a production order?
Please contact us to confirm sample availability for your required configuration. Sample quantity, pricing, and lead time need to be confirmed before ordering. Include the tests you plan to perform, such as fit, runtime, or charger compatibility, so we can review your evaluation requirements.
Ask for Custom Quote
Ready to design your 18650 battery pack? Connect with our engineers today to start your project.












