INR21700-40TG (Tenpower) 21700 Li-Ion 4000mAh
Tenpower

INR21700-40TG 4000mAh 21700 Li-Ion Battery

21700 Li-Ion 4000mAh rated
from €2.45/cell
13
tests planned
€2.45
best price / cell
500mA Planned test
Not tested yet
1A Planned test
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2A Planned test
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3A Planned test
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4A Planned test
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5A Planned test
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10A Planned test
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15A Planned test
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20A Planned test
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25A Planned test
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30A Planned test
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35A Planned test
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40A Planned test
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In test queue Queued for testing since Feb 2026.

Single cell GTIN: 7417940529738
Nkon
Netherlands · nkon.nl
3 months ago
€2.45
Milnik
Romania · milnik.ro
3 months ago
€3.71
lei19.50
Cell voltage - Nominal 3.70 V
Charge cut-off voltage 4.20 V
Discharge cut-off voltage 2.50 V
Standard charge current 2 A
Maximum charge current 6 A
Maximum discharge current 35 A
Internal resistance ≤ 10 mΩ
Volumetric energy density 594 Wh/L
Gravimetric energy density 206 Wh/kg
Diameter (max) 21.30 mm
Height (max) 70.30 mm
Weight ~ 70 g