3.6V 2.2Ah 18650 Battery Pack — 1S1P Button Top
Overview
This single-cell pack pairs an INR18650 cell with a protection board in a button-top 1S1P format, for devices designed around one 3.6V lithium-ion cell with protected output. Protection: the pack carries a protection board with short-circuit protection; charge and discharge cut-offs are 4.2V and 2.5V. Leads, connectors and shrink-wrap colours can be adapted per project.
Specifications
| Item | Specification |
|---|---|
| Configuration | 1S1P, button top |
| Cell | INR18650, 2200mAh class |
| Nominal voltage | 3.6V |
| Capacity | 2.2Ah typical / 2.1Ah minimum |
| Weight | Approx. 60g |
| Internal resistance | ≤60mΩ |
| Charge cut-off voltage | 4.2V |
| Discharge cut-off voltage | 2.5V |
| Charge current | 0.5C standard / 1C maximum |
| Discharge current | 0.2C standard / 1C maximum continuous |
| Charge temperature | +10 to +45°C |
| Discharge temperature | −20 to +60°C |
| Short-circuit protection | Yes |
Build and options
Leads, connectors and labelling are confirmed against your equipment drawing before samples are made, and the pack is built to the specification above once it is confirmed. For shipping and compliance files, UN38.3, IEC 62133 and MSDS documents can be confirmed and provided for specific models — tell us the model you are buying and we will confirm which documents cover it.
Frequently Asked Questions
What protection does the button-top 1S1P pack include?
The pack is built with a protection board that provides short-circuit protection and guards the cell at the 4.2V charge cut-off and 2.5V discharge cut-off.
What are the charge and discharge limits?
Charge at 0.5C standard and up to 1C maximum; discharge at 0.2C standard and up to 1C maximum continuous, within the +10 to +45°C charge and −20 to +60°C discharge temperature windows.
Tell us about your battery project
Send your device requirements — voltage, capacity, current, space and quantity — and our engineering team will evaluate cell selection, configuration and battery management against them.