Can You Charge Your Phone With A 9 Volt Battery. The GB40 is an ultra-portable lightweight and compact portable lithium car battery jump starter pack for 12-volt batteries. If thats the case turn on the high beams to drain excessive voltage surface charge.

Leave the battery in your freezer for 3 days. Wipe all the dust off the phone battery. Try turning on your phone.
If thats the case turn on the high beams to drain excessive voltage surface charge.
A cell phone charger will most likely NOT work since they are more typically 5 to 6 V BUT a LAPTOP charger should work or any charger rated at 12 V probably would show 14-16 V on your multimeter A laptop charger is about 19 V since the laptop uses about the same voltage battery pack as your 1820 V RyobiBoschMakita you can see. Remove the battery from your phone. If thats the case turn on the high beams to drain excessive voltage surface charge. Wipe all the dust off the phone battery.
