The estimated delivery time is up to 5 business days.
Free delivery from 175 PLN.
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Key Parameters:
Energy Capacity: 4000 mAh
Pole Type: flat top
Nominal Voltage: 3.7 V
Maximum Charging Voltage: 4.2 V
Peak Discharge Current (MDC): 30 A
Standard Discharge Current (CDC): 20 A
Why Choose Us?
Battery X Power 21700 4000mAh is a professional power source designed for devices requiring reliable and stable power. It offers safe operation and long-lasting performance, and its precisely crafted flat top ensures broad compatibility. Thanks to advanced current parameters, it provides confident and dynamic operation even in demanding conditions.
Safe Usage Guidelines:
Always monitor maximum charging and discharging voltage values.
Avoid the risk of pole short-circuiting.
Store the battery in a specialized case, especially during transport.
When not using the battery for an extended period, check that its voltage does not exceed 2.5 V.
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