18650 Battery Voltage: 11 Things You Need to Know
Fully Charged Voltage: At full charge, an 18650 battery usually reaches up to 4.2 volts. This upper limit is where the battery holds its maximum capacity. Nominal Voltage: Typically, the regular working voltage of an 18650 battery is cited as 3.7 volts. ... These changes reduce the battery''s capacity and can cause a lower voltage output ...