warning Misusing or mishandling a lithium-ion battery may cause a FIRE or EXPLOSION which can result in INJURY or DEATH. 
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Samsung 40T 21700 4000mAh 35A Battery - Button Top

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Please note this is an original flat top Samsung INR21700 40T cell with an added button top by a third party manufacturer and and is longer than a standard flat top 21700 battery. This cell has an additional outer wrapper and insulator which must not to be removed.

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Manufacturer:     Samsung
Model:     INR21700-40T (40T)
Size:     21700
Style:     Button Top
Protected:     NO, UNPROTECTED. This cell is unprotected and intended for use in protected battery packs only and NOT individually or as a standalone product. In order to operate safely it must have additional protection in the form of a PCB (protection circuit board) or BMS (battery management system), which is not included.
Nominal Capacity:     4000mAh
Discharge Current:     35A Maximum Continuous (1C)
Nominal Voltage:     3.6V
Maximum Voltage:     4.2V
Cutoff Voltage:     2.5V
Approximate Dimensions:     21.2mm x 71.7mm
Approximate Weight:    69.3g
Origin:     Republic of Korea
Specification Datasheet:     Samsung 40T Datasheet

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