Might be for 18650/18670 Li-Ion cells at 3.7v.
18mm diameter, 65mm long, or 67mm with some built in circuitry, hence the names.
Laptop batteries are typically 4 to 8 18650 cells arranged in series of 2.
@Emyr started
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Might be for 18650/18670 Li-Ion cells at 3.7v.
18mm diameter, 65mm long, or 67mm with some built in circuitry, hence the names.
Laptop batteries are typically 4 to 8 18650 cells arranged in series of 2.