12vdc charging problems

Feb 19, 2018
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My inexpensive Alcatel Fierce2 phone's battery will last for 2-3 days easily if just left in the car not attached to anything. However if I hook up the 12vdc charger to the phone, it will charge while the car is running but if left overnight (still attached to the 12vdc charger), the phone battery is nearly drained overnight. The 12v socket is dead when the car is turned off. Someone tell if what is happening here. I'd like to leave it semi-permanently placed in the center console and attached to the 12v charger at all times but if I get into the car each morning and the phone is nearly dead, what is wrong here.
 
Feb 19, 2018
3
0
10
MERGED QUESTION
Question from baldy95307 : "12vdc-USB charging problem"

Will the p[hone battery discharge if left connected to the 12v-USB charger overnight (the 12v socket is dead when the car is not running).
 

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