18v (21v) 2A Lithium Ion Charger

£47.00

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Description

Lithium ion has a nominal voltage of 3.7V (sometimes quoted as 3.6V), but cells are charged to a maximum of 4.20V which is why the charge voltage is greater than the quoted battery voltage. To calculate the charger voltage, all you have to do is to multiply the number of series strings in any battery.

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