Custom cylindrical battery packs: platforms, applications and selection
Cylindrical packs are highly standardised, reliably sourced and flexible to configure. They suit portable electronics, power tools, garden machinery, lighting equipment and light-duty mobility. We design, build and deliver to your capacity, size and interface.
Applications
Where this form factor fits
Cylindrical is a highly standardised format. Each size platform leans toward a different balance of pack-level capacity and discharge rate, and they combine flexibly to fit your device. The table below lists the platforms in common use; others can be assessed as well. We configure the pack around your product layout and duty cycle.
Cordless power tools
Garden machinery
Portable lighting
Floor cleaners
Two- and three-wheelers
Instruments and measuring equipment
Platforms
Size platforms in common use
The table lists the platforms in common use by size and pack-level capacity direction, for reference against your product. We make the final call, and platforms not listed can be assessed as well.
| Platform | Size | Pack-level capacity direction | Typical use |
|---|---|---|---|
| 60145 | 60 mm dia. × 145 mm height | Very large capacity | Storage and heavy-duty mobility equipment |
| 4680 (46800) / 46950 / 46120 | 46 mm dia. × 80/95/120 mm height | High capacity, high current | High-power mobility equipment |
| 40135 | 40 mm dia. × 135 mm height | Very large capacity | Energy storage, heavy-duty mobility |
| 34600 | 34 mm dia. × 60 mm height | Large capacity | Portable storage, lighting |
| 32650 / 32700 / 32800 / 32600 / 32550 / 32140 | 32 mm dia. × 55–140 mm height | Higher to large capacity with fewer units per pack | Storage, AGVs, low-speed vehicle support |
| 26650 / 26700 / 26800 / 26500 / 26350 | 26 mm dia. × 35–80 mm height | Mid-to-high capacity | Power and storage equipment |
| 22650 / 22500 / 22430 | 22 mm dia. × 43/50/65 mm height | Mid-range capacity | Portable electronics, light tools |
| 21700 / 21500 / 21350 | 21 mm dia. × 35/50/70 mm height | Mid-to-high capacity, supports high rate | Power tools, garden machinery, light mobility |
| 18650 / 18620 / 18500 / 18350 / 18250 | 18 mm dia. × 25–65 mm height | A few Ah to tens of Ah, combined as needed | Portable electronics, handheld terminals, light tools |
| 17500 | 17 mm dia. × 50 mm height | Small portable duty | Small portable devices |
| 16650 / 16500 / 16340 / 16310 / 16300 / 16280 | 16 mm dia. × 28–65 mm height | Small portable duty | Small portable devices, lighting |
| 14870 / 14650 / 14500 / 14450 / 14430 / 14280 / 14250 / 14200 | 14 mm dia. × 20–87 mm height | Small portable duty | Small portable devices, test instruments |
| 13650 / 13450 / 13430 / 13400 / 13300 | 13 mm dia. × 30–65 mm height | Micro portable duty | Micro devices, wearable accessories |
| 10870 / 10840 / 10750 / 10440 / 10400 / 10380 / 10370 / 10300 / 10280 / 10200 / 10180 / 10150 | 10 mm dia. × 15–87 mm height | Micro portable duty | Micro devices, wearable accessories |
Checklist
What to confirm before selection
Tell us these details and we will select the option that balances performance and cost for you.
| Item | Description |
|---|---|
| System voltage | Commonly 3.0–72 V platforms; others within that range can be assessed |
| Capacity range | Built to your requirements from 0.1 Ah to 600 Ah, confirmed per model |
| Discharge requirement | Continuous and peak rates matched to the duty cycle, per model |
| Structure & interface | Customised to your mounting space, fixing method, output connectors and communication needs |
| Certification & transport | 17 certifications and reports held (existing models): CE / IEC 62133 / UL 2054 / RoHS / REACH etc.; applicability confirmed per model and target market |
Note: the certifications and reports above were obtained for existing models. Other models are handled per your target market and specifications — existing reports are provided directly, and new items are applied for by our team together with you.
The above describes the general matching logic only. The final selection is made by us — your requirements come first, and we work to reduce your cost as far as safety allows.
FAQ
Common questions
Do you build packs on 18650 and 21700 platforms?
Yes. Every platform in the table above is within our pack-configuration range, with capacity, discharge rate, structure and interface tailored to your device. Share the mounting space and duty cycle and we will propose a design.
How is the platform chosen?
We choose it for you, weighing your voltage, capacity, discharge rate and mounting space to select the option that balances performance and cost. You only need to describe the application — no need to settle the platform yourself.
What certification and documents are needed for export?
CE / IEC 62133 / UL 2054 / RoHS / REACH have been passed, and the applicable items are confirmed per your target market and model. Export transport documents are confirmed per model, with the specific items set by your order and target market.
Cylindrical battery pack customisation: batteries chosen for the duty, structure built for the device
Tell us the application, capacity and runtime, operating temperature, installation space, charge and discharge pattern and cost range — we choose from proven cylindrical platforms such as 14500, 18650, 21700, 26650, 32700, 32140, 40135 and 46950, and deliver the series-parallel layout, BMS configuration and bracket-structure data.