18650 cells use an approximately 18mm by 65mm cylindrical format. For B2B battery-pack sourcing, select the exact manufacturer model and its published specification rather than treating every 18650 cell as interchangeable.
How to compare 18650 battery cell models
Begin with the required pack voltage, series-parallel configuration, usable runtime, continuous and peak load, enclosure space, operating temperature, annual quantity and delivery country. Capacity alone does not define suitability. The pack designer must validate electrical, thermal and mechanical performance for the finished system.
Published 18650 models in the catalog
- Samsung INR18650-25RM/T 2500mAh
- Samsung INR18650-30Q 3000mAh
- Samsung INR18650-33G 3300mAh
- Samsung INR18650-35ET 3500mAh
- EVE INR18650/25P 2500mAh
- EVE INR18650/35V 3500mAh
- DMEGC INR18650-20P 2000mAh
- DMEGC INR18650-30P 3000mAh
See the full 18650 cell catalog for the current model pages.
What to include in an 18650 wholesale inquiry
Provide the exact model or candidate models, application, series-parallel configuration, expected quantity, destination country and required files. Availability, packaging, documents and delivery route are confirmed against the exact model and order details.
Model verification and sources
Model names and nominal capacities in this guide are taken from the linked product records. Use the exact manufacturer datasheet and completed pack validation before production. For technical matching, use the B2B cell inquiry form.