最後更新: 2018-12-30
介紹
18650 係一雒規格: 18mm x 65mm in size.
Capacity: range of 1800mAh to around 3500mAh (2018年)
Voltage: 3.6V / 3.7V
Chemical: Li-Ion
Charging Cycles: 500
Capacity
1mAh = 0.001A*3600s = 3.6A
換句話說
3500mAh的电池可以提供持续 7 小时的 500mA 恒流
Max: 3600mAh@2018yr
Continuous Discharge Rating (CDR)
The higher the capacity, the lower the CDR. That means devices that draw less power can take advantage of higher-capacity cells.
If you pick the wrong battery, the cells will get too hot. Heat will damage the battery, reducing its overall lifespan.
Max: 35A@2018yr
Protects
This circuit protects the battery against dangers like excessive charging and discharging, short circuiting, and extreme temperatures.
This is located one end of the battery
牌子
Panasonic is the market leader, but Samsung, Sony, and LG all produce very high-quality cells.
Sony VTC5A
CDR/Capacity: 30A/2600mAh
Nominal Voltage: 3.7V
Samsung 30Q
$22.8@201812
CDR/Capacity: 15A/3000mAh
Samsung 25R
$24@201812
CDR/Capacity: 20A/2600mAh
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Fenix ARB-L18-X
- ARB-L18-3500: $118@201812
- ARB-L18-3400: $98@201812
- ARB-L18-2900: $78@201812
- ARB-L18-2600: $58@201812
SupFire
- AB8 1700mAh $9.9@201812
- AB2 2000mAh $15@201812
- AB5-S 3350mAh $39@201812