Samsung SDI INR21700-40T Battery

Reclaimed from lightly used packs. Product will have blemishes on both terminals from removal of spot welded nickle strip. Brand Samsung Standard discharge capacity Min. 4,000mAh - Charge: 0.5C(2A), 4.20V, 0.05C(200mA) cut-off @RT - Discharge: 0.2C(800mA), 2.5V cut-off @ RT Rated discharge capacity Min. 3,900 mAh - Charge:1.5C(6A), 4.20V, 0.025C(100mA)cut-off @RT - Discharge: 10A, 2.5V cut-off @ RT Nominal voltage 3.6V Standard charge CCCV, 2A, 4.20 V, 200mA cut-off Rated charge CCCV, 6A, 4.20 V, 100mA cut-off Charging time Standard charge : 180min / 200mA cut-off(@ RT) Rated charge: 70min / 100mA cut-off(@ RT) Max. continuous discharge (Surface temperature) 35A(Without temperature cut) 45A(With 80℃ temperature cut) Discharge cut-off voltage 2.5V (End of discharge) Cycle life Capacity ≥ 2,400mAh @ after 250cycles (60% of the standard capacity @ RT) - Charge : 6A, 4.20V, CCCV 100mA cut-off @ RT - Discharge: 35A, 2.5V cut-off @ RT Retention characteristics Capacity recovery(after the storage) ≥ 3,510 mAh (90% of the rated capacity @ RT) - Charge : 6A, 4.20V, CCCV 100mA cut-off @ RT - Storage : 30 days (@ 60℃) - Discharge : 10A, 2.5V cut-off @ RT Cell weight 70.0g max Cell dimension Height : Max 70.30mm Diameter : Max 21.22mm Link to data sheet Here Qualty Garuntee and Free Replacements All cells recovered are from low use near new packs, either from product recalls (unrelated to the cells) warranty returns from external failures within 1 year of operations, or packs imported with faulty BMSs that were never charged or discharged. All batteries are voltage and IR tested before sale, and usually test at 90% state of health or above on average. Unless specified in the product or requested, full capacity tests on indivdual cells are not always done, samples from each batch are capacity tested before being stocked. It is expected that customers will capacity test cells on arrival for their own assurance. This allows the cost to remain very low. If your cells dont perform as expected, just let us know and we'll happily arrange a free replacement.