I had purchased an A/C wall adapter to recharge the battery for my sister's phone. The first time I used it, it worked great. The battery recharged perfectly. However the next time I tried, nothing happened. The battery doesn't charge at all and the phone is completely flat. I'm not sure what to do. Please help.
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If the cell phone battery is more than 3 - 4 years old then the battery could be worn out.
Rechargeable batteries have a finite number of charge and discharge cycles and
will lose their charge capacity over time, i.e. won't charge to 100% and
gradually the charge reduces until the battery won't charge up at all. OR The
battery shows a 100% charge but when the adapter is disconnected the battery
drops off to zero capacity in a very short time. If the battery drops to an
unacceptable charge level then the battery needs to be replaced.
Rechargeable batteries will fail if stored in a discharged
state for long periods.
If the cell phone battery is more than 3 - 4 years old then the battery could be worn out.
Rechargeable batteries have a finite number of charge and discharge cycles and
will lose their charge capacity over time, i.e. won't charge to 100% and
gradually the charge reduces until the battery won't charge up at all. OR The
battery shows a 100% charge but when the adapter is disconnected the battery
drops off to zero capacity in a very short time. If the battery drops to an
unacceptable charge level then the battery needs to be replaced.
Rechargeable batteries will fail if stored in a discharged
state for long periods.
If the cell phone battery is more than 3 - 4 years old then the battery could be worn out. Rechargeable batteries have a finite number of charge and discharge cycles and will lose their charge capacity over time, i.e. won't charge to 100% and gradually the charge reduces until the battery won't charge up at all. OR The battery shows a 100% charge but when the adapter is disconnected the battery drops off to zero capacity in a very short time. If the battery drops to an unacceptable charge level then the battery needs to be replaced. Rechargeable batteries will fail if stored in a discharged state for long periods.
If the rechargeable battery is more than 3 - 4 years old then the battery could be worn out. Rechargeable batteries have a finite number of charge and discharge cycles and will lose their charge capacity over time, i.e. won't charge to 100% and gradually the charge reduces until the battery won't charge up at all. OR The battery shows a 100% charge but when the adapter is disconnected the battery drops off to zero capacity in a very short time. If the battery drops to an unacceptable charge level then the battery needs to be replaced. Rechargeable batteries will fail if stored in a discharged state for long periods.
If the cell phone battery is more than 3 - 4 years old then the battery could be worn out.Rechargeable batteries have a finite number of charge and discharge cycles andwill lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up at all. OR Thebattery shows a 100% charge but when the adapter is disconnected the batterydrops off to zero capacity in a very short time. If the battery drops to anunacceptable charge level then the battery needs to be replaced.
If the cell phone battery is more than 3 - 4 years old then the battery could be worn out.Rechargeable batteries have a finite number of charge and discharge cycles andwill lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up at all. OR Thebattery shows a 100% charge but when the adapter is disconnected the batterydrops off to zero capacity in a very short time. If the battery drops to anunacceptable charge level then the battery needs to be replaced.
If the cell phone battery is more than 3 - 4 years old then the battery could be worn out.Rechargeable batteries have a finite number of charge and discharge cycles andwill lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up at all. OR Thebattery shows a 100% charge but when the adapter is disconnected the batterydrops off to zero capacity in a very short time. If the battery drops to anunacceptable charge level then the battery needs to be replaced.
Ifthe phone battery is more than 3 - 4 years old then the battery could be wornout. Rechargeable batteries have a finite number of charge and discharge cyclesand will lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up atall.
ORThe battery shows a 100% charge but when the adapter is disconnected thebattery drops off to zero capacity in a very short time.
Ifthe battery drops to an unacceptable charge level then the battery needs to bereplaced.Check power adapter's DCplug that connects into the cell phone power socket with a multi-meter, the voltageshould be slightly higher than the voltage that is printed on the label on thebottom of the adapter. If the voltage is zero or way below the voltage that isprinted on the label then the power adapter is faulty and needs to be replaced.
Ifthe is more than 3 - 4 years old then the battery could be wornout. Rechargeable batteries have a finite number of charge and discharge cyclesand will lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up atall.
ORThe battery shows a 100% charge but when the adapter is disconnected thebattery drops off to zero capacity in a very short time.If the battery drops to an unacceptable chargelevel then the battery needs to be replaced.
If both the charger and the battery are warm to the touch, the battery is probably charged.
The low battery level warning level is learned by the phone. To train it, allow the battery to run down once until the phone stops working, then recharge it.
The best way totest the charging operation would be to try using the phone. Fully charged you should get about 6 hours of talk time from a fully charged battery, and at least a week of standby operation.
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