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Power up your devices with the reliable performance of our 21700 rechargeable battery. Built for endurance and efficiency, this 4000mAh lithium-ion battery delivers consistent output and long-lasting power—perfect for high-drain electronics, flashlights, tools, and more.
Battery Type: 21700 Li-ion Rechargeable
Capacity: 4000mAh
Nominal Voltage: 3.63V
Maximum Charging Voltage: 4.2V
Charging Method: Constant Current / Constant Voltage (CC-CV)
Standard Charging Current: 0.33C (1551mA)
Fast Charging Current: 1C (4700mA)
Charging Time: Approx. 4 hours
CCCV Cut-Off: 0.05C (235mA)
Continuous Discharge Current: 9.4A (9400mA)
Discharge Cut-Off Voltage: 2.5V
Cycle Life: Maintains ≥3,760mAh after 1000 cycles (80% capacity at room temperature)
Storage Tolerance: Up to 30 days at 60°C
Recommended Discharge (Storage): 0.2C (940mA) to 2.5V at room temperature
Unit Dimensions: 70.80mm (Length) x 21.25mm (Diameter)
Battery Weight: 69g
Order before 2pm and we promise to dispatch on Same Day !
SYD, MEL, BRI, ADL orders are delivered within 1-2 days. Others within 2-5 days.
Warranty
Our goods come with guarantees and 12 months Australian Warranty.
Covers any defects in materials used to manufacture your product
Covers any defects in workmanship under normal use
Covers any broken components under normal use
Change of Mind Returns
We have a 14-days return policy, which means you have 14 days after receiving your item to request a return. For change of mind returns, your item must be in the same condition as you received it, unworn or unused, with tags, and in its original packaging.
How to Return?
To start a return, please contact us. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package.
Estimated Delivery Time Frame: 1 - 6 business days
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