Description
Samsung INR21700-50S 3.6V Battery — BOLTON SKU 64205.
About the Samsung INR21700-50S 3.6V Battery
The INR21700-50S is a cylindrical lithium-ion rechargeable cell in the 21700 format from Samsung SDI. It carries a nominal voltage of 3.6 V and a nominal capacity of 5,000 mAh, giving approximately 18 Wh per cell, and is charged to 4.2 V. The manufacturer’s standard charge method is 0.5C (2,500 mA) constant current to 4.2 V followed by constant voltage with a 250 mA cut-off at 23 °C. The cell is rated for 25 A maximum continuous discharge, which places it in the high-power rather than the high-capacity part of the 21700 range. Listed here as the 3 6v samsung-inr21700-50s battery, it is supplied as a bare, flat-top, unprotected cell: there is no integrated protection circuit, so it is intended for integration into an engineered pack with an external battery management system, fusing and welded interconnects rather than for loose use.
Key specifications
| Cell format | 21700 cylindrical |
|---|---|
| Chemistry | Lithium-ion (INR) |
| Nominal voltage | 3.6 V |
| Nominal capacity | 5,000 mAh (approx. 18 Wh) |
| Charge voltage | 4.2 V |
| Standard charge | 0.5C (2,500 mA) CC/CV, 250 mA cut-off at 23 °C |
| Maximum continuous discharge | 25 A |
| Terminal / protection | Flat top, unprotected (no PCB) |
| Manufacturer | Samsung SDI |
Typical applications
The pairing of 5 Ah capacity with a 25 A continuous rating suits packs where sustained current draw matters more than absolute runtime — electric propulsion, portable power tools and high-output handheld lighting are typical. The flat-top, unprotected construction is intended for series-parallel assemblies where cells are spot-welded to nickel strip or busbars rather than held in spring contacts. Because no protection circuit is fitted, pack designers normally add a battery management system providing over-charge, over-discharge and temperature cut-offs.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
Reviews
There are no reviews yet.