How do you charge the YAGE LED rechargeable headlamp?
usually, when the discharge to the battery nominal voltage of about 80%, it is time to charge the battery.
LED lamp power, if the battery capacity is large, continuous discharge ability, light in the whole process, is not easy to detect changes of LED lamp brightness, only by visual, is not easy to judge when the end of discharge; the simplest way to use a multimeter to detect the battery voltage to judge whether the charge
For example: the nominal 3.7V lithium battery, charge and discharge to 3V around, lead-acid battery nominal 6V, discharge charge to about 4.8V;
If the discharge to the LED lamp is put out and recharged, then the battery is in the state of over discharge, and the over discharge will seriously affect the battery life;
