Rechargeable Battery - Samsung INR21700-40T 2 Pcs 4000 mAh 3.6 V Li-Ion Cells
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Rechargeable Battery - Samsung INR21700-40T 2 Pcs 4000 mAh 3.6 V Li-Ion Cells

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Rechargeable Battery - Samsung INR21700-40T 2 Pcs 4000 mAh 3.6 V Li-Ion Cells

61.40 €
Monthly payment from 2,48 €
5080423

5903205773784

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Samsung INR21700-40T 2 pcs. 4000 mAh 3.6 V lithium-ion cells


Two unprotected Samsung INR21700-40T lithium-ion cells with a nominal voltage of 3.6 V and a typical capacity of 4000 mAh each. A compatible charger and battery protection or management system is required.


  • 2 original Samsung INR21700-40T high discharge current lithium-ion cells
  • Typical capacity – 4000 mAh, nominal voltage – 3.6 V for each cell
  • Maximum continuous discharge current – 35 A or up to 45 A with thermal protection
  • Unprotected cells with flat contact; use only with a compatible charger and appropriate protection circuit or BMS

Product Information

Product Type Rechargeable lithium-ion battery cell
Brand Samsung
Model INR21700-40T
Quantity 2 cells
Cell Format 21700
Construction Flat contact cell, unprotected

Technical Specifications

Chemical Composition INR lithium-ion
Nominal Voltage 3.6 V for each cell
Charging Voltage Max. 4.2 V for each cell
Minimum Discharge Voltage 2.5 V for each cell
Maximum Continuous Discharge Current 35 A; up to 45 A with appropriate thermal protection

Safety Warning

Usage Use only in compatible devices with appropriate protection circuit or battery management system (BMS).
Charging Use a quality charger designed for 21700 lithium-ion cells with a charging voltage cutoff limit not exceeding 4.2 V. Do not exceed the specified charging current.
Usage and Storage Avoid short circuits, overheating, do not immerse in liquids, and do not carry together with metal objects. Do not use cells with damaged casings, dents, or other visible defects.
Installation Do not use without proper protection against overcharging, excessive discharge, excessive current, short circuits, and overheating. Do not solder directly to cells using a regular soldering iron.