| Configuration | Capacity (Ah) | Energy (Wh) | Typical Size (mm) | Weight |
|---|---|---|---|---|
| 10S1P | 4.5–5Ah | ~162–180Wh | ~22×70×210 | ~400g |
| 10S2P | 9–10Ah | ~324–360Wh | ~45×70×210 | ~800g |
| 10S3P | 13.5–15Ah | ~486–540Wh | ~65×70×220 | ~1200g |
| 10S4P | 18–20Ah | ~648–720Wh | ~85×70×220 | ~1600g |
Custom 36V 21700 battery pack with waterproof & explosion-proof BMS protection, heat-dissipation enclosures for e-bikes and robots.
For buyers looking to increase energy density without changing battery size, 36V 21700 lithium battery packs offer a clear upgrade over traditional 18650 solutions. Junda’s high-performance 21700 systems have powered over 100 successful projects across e-bikes, robotics, and industrial applications.
The 36V (10S) 21700 lithium battery pack offers a balanced combination of voltage and capacity, making it widely used in e-bikes, scooters, AGVs, and industrial robotics. By reviewing its specifications, capacity options, and application scenarios, you can select the configuration that best fits your power needs. Explore the detailed data below to find the most suitable match for your project.
| Parameter | Specification |
|---|---|
| Battery Type | 10S 36V 21700 Lithium-ion Battery Pack |
| Nominal Voltage | 36V |
| Nominal Capacity | 12–20Ah (depending on configuration) |
| Energy | ~432–720Wh |
| Charge Voltage | 42V |
| Cut-off Voltage | ~30V |
| Continuous Discharge Current | 15A–60A |
| Peak Discharge Current | 30A–80A |
| Operating Temperature | Charge: 0–45℃ / Discharge: -20–60℃ |
| Cycle Life | >500 cycles @ 80% DOD |
| Configuration | Capacity (Ah) | Energy (Wh) | Typical Size (mm) | Weight |
|---|---|---|---|---|
| 10S1P | 4.5–5Ah | ~162–180Wh | ~22×70×210 | ~400g |
| 10S2P | 9–10Ah | ~324–360Wh | ~45×70×210 | ~800g |
| 10S3P | 13.5–15Ah | ~486–540Wh | ~65×70×220 | ~1200g |
| 10S4P | 18–20Ah | ~648–720Wh | ~85×70×220 | ~1600g |
| Capacity Range | Common Applications |
|---|---|
| 4.5–5Ah | E-bikes, light scooters, portable industrial equipment |
| 9–10Ah | Electric tools, medium-size mobility devices, AGVs |
| 13.5–15Ah | High-performance e-bikes, robots, field testing instruments |
| 18–20Ah | Heavy-duty scooters, industrial backup power, logistics robots |
Precisely engineered to fit your mechanical requirements
Options like 10S2P, 10S3P, 10S4P and more
Samsung, LG, Panasonic, and other trusted brands
30A to 100A protection with safeguards for overcurrent, overvoltage, and temperature
XT60, XT90, Anderson, CAN, UART, and more
Bluetooth monitoring, waterproofing, explosion-proof casing, shock protection, and wide temperature tolerance
Junda is a professional lithium battery manufacturer, supplying certified battery solutions worldwide. Product standards are continuously improved to help you maintain reliable supply and keep your customers satisfied.
Built with 21700 cells in 10S3P configuration
Equipped with 30A BMS for protection and stability
Voltage, capacity, and dimensions can be customized to fit your e-bike
Delivers 80A continuous and 140A peak discharge current
Aluminum housing enhances thermal management and durability
Higher energy density than comparable 18650 battery packs
21700 cells are larger and offer higher energy density than 18650, making them ideal for applications that require longer runtime, fewer cells, or better thermal management.
Yes. We support A-grade 21700 cells from brands like Samsung, LG, EVE, and Lishen. You can specify your preferred brand or let us recommend one based on your cost–performance needs.
Absolutely. We offer both hardware and smart BMS options with support for CAN, UART, RS485, Bluetooth, and custom firmware integration.
UN 38.3 is required for transport. Depending on the market, you may also need CE (EU), UKCA (UK), IEC 62133, MSDS, RoHS, or UL. We provide full support.
Samples: 7–12 working days
Mass production: 15–25 days
Lead time may vary based on complexity, cell availability, and customization level.
Yes. We offer small-batch prototyping (usually 5–100 pcs) to help you test form, fit, and function before scaling up.
Yes. We provide custom labels, logo printing, box packaging, and barcode integration to support your supply chain and brand visibility.
You should include target voltage, capacity, discharge current, size limits, connector type, BMS protocol, certification needs, and annual quantity estimates.
With more than a decade of experience, Junda delivers precision-engineered lithium battery packs tailored for your unique applications. Here’s what makes us a trusted partner for global B2B clients:
At Junda, our engineering team is led by a senior battery architect with 15+ years of hands-on experience at CATL, BYD, and other industry leaders. Backed by a cross-functional team of 6 engineers, we provide full-cycle development from design and simulation to testing and certification. We’ve completed over 1,000 custom battery pack projects across sectors like eMobility, energy storage, medical devices, and industrial tools—always focusing on safety, reliability, and performance.
Junda operates under a strict ISO 9001:2015-certified quality management system, overseen by our QA director and implemented across every department. From incoming cell inspection to final pack aging tests, every step is digitally tracked and traceable. Our system ensures stable supply chain sourcing, controlled assembly processes, and compliance with industry benchmarks such as UN38.3, CE, and IEC 62133.
Junda’s battery pack assembly process integrates mechanical, electrical, and thermal design tailored to your use case. Our capabilities include IP67/IP68 waterproof housing, high-discharge BMS systems, CAN/RS485 communication protocols, and reinforced designs for vibration or extreme environments. We conduct cell sorting, welding, insulation, balancing, and aging tests in-house to ensure consistent performance and longevity.
From your first inquiry to final delivery, we provide responsive, multilingual support backed by a dedicated sales and engineering team. We guide clients through technical evaluation, prototyping, compliance, and logistics—ensuring a transparent, stress-free experience. Whether you need an urgent sample or a long-term OEM solution, we’re here to make your battery development process efficient and reliable.
Share your voltage, size, application, and quantity needs—we’ll assess your project quickly.
Our engineers will optimize the design, confirm details, and provide samples if needed.
Once approved, we start production and arrange fast, secure shipping to your destination.
Need a custom lithium battery pack? Just send us your specs—we’ll help you choose the right voltage, case, and configuration for your application.
At JUNDA, we make customization easy. Follow these 3 simple steps to start today:
Send your battery requirements — voltage, capacity, casing type, or upload drawings/photos.
We’ll evaluate your specs and recommend the best configuration. A detailed quote will be sent within 24 hours.
After approval and deposit, we start production. Shipping and tracking will be arranged for fast, secure delivery.