Check out some of the most popular tech myths people still believe

Overcharging a lithium-ion battery will degrade the battery over time. Charging a battery degrades its ability to hold a charge, and continuous overcharging degrades it even more quickly.

This is something that I have noticed by observing how my daughter overcharges her battery frequently, my wife less frequently and myself almost never. Same type of battery. My daughter's phone battery typically lasts about 15 months before it no longer holds a charge for more than four hours. My wife gets about 18 months, while I usually get to the 30-month mark. (Yes, I keep my phone for that long).

The same applies to laptop batteries and other lithium-ion rechargeable batteries. Battery care is vital to ensure that you get the maximum length of service.

Some might call me obsessive ... like my wife and those who know me.
 

Bpsti

Posts: 18   +7
Overcharging a lithium-ion battery will degrade the battery over time. Charging a battery degrades its ability to hold a charge, and continuous overcharging degrades it even more quickly.

This is something that I have noticed by observing how my daughter overcharges her battery frequently, my wife less frequently and myself almost never. Same type of battery. My daughter's phone battery typically lasts about 15 months before it no longer holds a charge for more than four hours. My wife gets about 18 months, while I usually get to the 30-month mark. (Yes, I keep my phone for that long).

The same applies to laptop batteries and other lithium-ion rechargeable batteries. Battery care is vital to ensure that you get the maximum length of service.

Some might call me obsessive ... like my wife and those who know me.

Your not overcharging a lithium battery, if you were you would be getting fires. The charge controller in the phone/device determines how much or how little to charge the battery, not you. Topping off a lithium battery tends to not really effect its life. What does effect it is use. And I strongly suspect your daughter is clocking vastly more use/hours on her device than you are, especially considering your comments about being OCD about the battery. Far less important than days/lived is hours/used for a lithium battery and I suspect yours lives "longer" simply because it was used less.
 

jtveg

Posts: 67   +20
Overcharging a lithium-ion battery will degrade the battery over time. Charging a battery degrades its ability to hold a charge, and continuous overcharging degrades it even more quickly.

This is something that I have noticed by observing how my daughter overcharges her battery frequently, my wife less frequently and myself almost never. Same type of battery. My daughter's phone battery typically lasts about 15 months before it no longer holds a charge for more than four hours. My wife gets about 18 months, while I usually get to the 30-month mark. (Yes, I keep my phone for that long).

The same applies to laptop batteries and other lithium-ion rechargeable batteries. Battery care is vital to ensure that you get the maximum length of service.

Some might call me obsessive ... like my wife and those who know me.

Technically, you cannot overcharge a lithium ion battery. There is electronic circuitry built in to the actual battery itself that disables charging when the battery reaches a certain voltage, ie fully charged. It similarly won't allow you to over discharge the battery either. This would actually render the battery instantly useless if it were to fall below a certain voltage.

What is most likely happening is your daughter is going through more charge / discharge cycles. Since these are finite and once you've gone past a few hundred (typically 500) the available power and therefore usage time reduces.

So the total number of hours of usage on your daughter's phone would be higher than the other phones and by the time your or your wife's phone reaches that level you would also be getting similar battery life. I bet you her phone is never off.
 

treetops

Posts: 3,064   +784
Overcharging a lithium-ion battery will degrade the battery over time. Charging a battery degrades its ability to hold a charge, and continuous overcharging degrades it even more quickly.

This is something that I have noticed by observing how my daughter overcharges her battery frequently, my wife less frequently and myself almost never. Same type of battery. My daughter's phone battery typically lasts about 15 months before it no longer holds a charge for more than four hours. My wife gets about 18 months, while I usually get to the 30-month mark. (Yes, I keep my phone for that long).

The same applies to laptop batteries and other lithium-ion rechargeable batteries. Battery care is vital to ensure that you get the maximum length of service.

Some might call me obsessive ... like my wife and those who know me.
lol it is probably because they use their phones more then you do, thereby depleting the battery.