● High-drain unprotected cell for demanding electronics
● 45A Maximum discharge current provides steady power for high-drain devices
● Flat top terminals compatible with common high-drain devices
● 4000mAh capacity for long runtimes even under heavy use
Type |
21700 INR Lithium Battery Cell |
Max.Power |
3.6V 4000mAh |
Brand | Samsung |
Certificate |
CB, UN38.3, BIS, UL, PSE, RoHS |
Lead Time |
10 Days |
Payment |
T/T, L/C,Western Union |
Warranty |
25 Years |
Samsung INR21700-40T Battery cell boasts an impressive energy capacity of 4,000 mAh, consistently delivering a robust 45 amp Continuous Discharge/Drain Rating. Remarkably, this exceptional performance is achieved without the necessity for temperature mitigation measures. Even when subjected to continuous discharge/drain of up to 40 amps, the cell's temperature rise remains constrained to a mere 67 degrees Celsius or 153 degrees Fahrenheit. Such attributes render this cell suitable for empowering devices of up to 95 watts per cell, while ensuring steadfast functionality over prolonged durations.
The 40T excels in maintaining unwavering output stability during extended utilization, making it an optimal choice for moderate wattage requirements. Its distinctive value lies in striking an impeccable balance between High Capacity and Ultra-High Discharging/Drain capabilities, all while maintaining peak performance standards.
Invest in a rechargeable battery that will last for years to come– this battery can be recharged 250+ times.
45A max continuous discharge rate for high-drain electronics, great for making battery packs for devices that require minimum discharge rates.
Stock up and store spare batteries with confidence– lithium ion batteries have a 3+ year shelf life, ensuring you always have a fresh replacement when you need it.
Notable Features
Tags:
Description |
Lithium-ion rechargeable cell |
Model name |
INR21700-40T |
Standard discharge capacity |
Min. 4,000mAh |
Rated discharge capacity |
Min. 3,900 mAh |
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) |
Max. continuous discharge |
(Surface temperature) |
Discharge cut-off voltage |
2.5V (End of discharge) |
Cycle life |
Capacity ≥ 2,400mAh @ after 250cycles |
Retention characteristics |
Capacity recovery(after the storage) ≥ 3,510 mAh |
Cell weight |
70.0g max |
Cell dimension |
Height : Max 70.30mm |
Operating temperature |
Operating temperature(*2) |
Storage temperature(*3) |
(Recovery 90% after storage) |
Note (*¹): Protection function of the battery pack should be set within the specified charge,
discharge and temperature range in the Cell Specification.
Note (*²): Discharge OTP(over temp. protection) should not be over 80℃ of the cell
surface temperature. Protection set should be based on the location of the cell
surface with the highest temp increase part of the battery pack.
Note (*³): If the cell is kept as ex-factory status (30% of charge),
the capacity recovery rate is more than 90%.