Rick_C
Contributor
A buddy just purchased a BigBlue TL4800P dive light. This light uses a battery pack with four 18650 3.7v Lithium Ion batteries. The light includes a "smart" charger. I recommended that he monitor the voltage when doing his first charge and test.
Anyway, the voltage reading after removing the battery pack when the charger turned green was 17.45v. That equals 4.3625V per cell. I've always read to never charge 18650 3.7v batteries past 4.2v. Should this be a concern?
Anyway, the voltage reading after removing the battery pack when the charger turned green was 17.45v. That equals 4.3625V per cell. I've always read to never charge 18650 3.7v batteries past 4.2v. Should this be a concern?