Can the lead-acid battery of LED flashlight be replaced by mobile phone lithium battery?
1 this rechargeable flashlight is rubbish is the basic resistor voltage to charge the battery which is a constant current charging easily charging lead-acid battery can accept overcharge but generally not more than 4.8 volts you lead-acid battery voltage is 3.5-4.2 volts in the long-term stability of 4.1 Volts
There is no need to consider lithium battery over, because the lithium battery over voltage is 2.6 volts, while the LED voltage will reach 3 volts, the brightness has been very weak, this time, in addition to fool, I do not see anyone will continue to use it.
Lithium battery voltage is 4.2-2.6 volts, long-term stability of 3.7 volts, so the voltage will be low, the need to limit the current resistance LED reduced to 90% of the original, otherwise LED brightness is not enough