Nokia phone batteries recharge for continual use.
Cell phone batteries are rechargeable to allow continual use of the phone. The Nokia BL-4U battery is a lithium ion battery that fits fourteen models of phones. A 3.7-volt battery delivers 1000 milliamps per hour of power to run your cell phone applications. Your Nokia phone that includes this battery can be charged to its full capacity using a battery charger or a USB cable.
Instructions
Battery Charger
1. Plug the phone charger into an electrical receptacle.
2. Insert the other end of the charger into the phone charging port. Depending on the model of Nokia phone, the charging port may be on the side or bottom of the phone. The charger will only insert into the phone with the correct side up.
3. Lay the phone on a flat surface and allow it to charge the BL-4U battery fully. The charger will turn off after the battery is fully charged and a full charge will be displayed on the phone screen.
4. Disconnect the charger from the phone and the electrical receptacle.
USB Cable
5. Insert the large end of the USB cable into a USB port on your computer. The port should say USB near it and may be inside a door on the front of the computer.
6. Insert the small end of the USB cable into the phone charging port on the bottom or side of the Nokia phone.
7. Set the phone on a flat surface nearby.
8. Unplug both ends of the cable when the phone is fully charged.
Tags: Nokia phone, charging port, into phone, phone charging, phone charging port