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Case design - without protruding positive contact.
Be careful that there is no protruding “plus” - for assembly into bags. Not all flashlights and other devices with quick-detachable batteries are suitable for installation - some only require a protruding “plus”!
Recommended for high-power flashlights and other devices with high current consumption.
Without protection board.
Optimal storage conditions for Li-ion batteries are achieved at 40 percent charge of the battery capacity and a temperature of 0...10°C.
Charge lithium-ion batteries only with specialized chargers.
Li-ion 18650 batteries are the most popular battery format for flashlights at present. Combines very high capacity and low self-discharge. Disadvantage - they shrink quickly at low temperatures (from -10°C degrees).
Characteristics:
element type: Li-ion
manufacturer: Panasonic, China (original)
standard size: 18650
nominal capacity: 3450 mAh
minimum capacity: 3350 mAh
internal resistance: <38 mOm (AC Impedance 1 kHz)
built-in security controller: no
rated voltage: 3.6V
minimum voltage: 2.5V
maximum voltage: 4.2V
charging time: 8 hours
rated charge current: 1.475 A
charging time: 4.5 h
maximum discharge current: up to 10 A
element diameter: 18.5 mm
element length: 65 mm
weight: 47 g
number of charge-discharge cycles: 1000 (capacity drops to 80% of the nominal value after 300 cycles)
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The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
To carry out technical calculations and obtain the exact parameters of the goods, use the datasheets from the manufacturer's website.
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NCR18650
The data presented in the product description are for reference only and may differ from those indicated by the manufacturer.
