Nokia slide phone which drains battery power very quickly. Have tried new battery to no avail. (Bluetooth is off)

i think that your battery's lifetime is over. try with a new battery. but make sure to buy an original battery. don't buy cheap chinese battery.

Sony Ericsson phones have built-in Bluetooth capabilities which allow them to be connected to a computer or a Bluetooth-enabled accessory such as a headset or speakerphone without using wires. Since Bluetooth does take some power to operate, most Sony phones default to having the Bluetooth powered off to conserve battery power. You can power on the Bluetooth on your phone fairly quickly.
Step 1

Press the "Menu" button on your phone and then select "Settings" from the available options.
Step 2

Select "Connectivity" from the Settings menu, and then select "Bluetooth" from the available options.
Step 3

Select "Turn On" from the Bluetooth menu to power on the Bluetooth on your phone. If you only have a "Power Off" option, then your Bluetooth is already powered on.

HERE'S THE ANSWER TO YOUR PROBLEM:

I believe that the main culprit is your battery itself - its capacity to hold and supply power to your cellphone. These are some of the causes why cellphone battery life are shortened:

1. Bluetooth - it quickly drains battery life
2. Programs running in the background
3. Wi-fi and Data Connections
4. Backlit Screens

Nokia x3 batteries have only 11 hours life when used for calls. So, if in case your battery does not work well, do not think twice to buy a new one. Your battery might have been used up or burn out. Do waste your time bringing charger and charging it always whenever you have calls. Try to think.

I love answering your question. Thanks...

Hi
Please follow the Instruction and set your motorola bluetooth in Nokia Phone

1. • 1 Press the Menu button on your Nokia phone and select "Settings" from the available options.
   • 2 Select "Connectivity" from the Settings menu and then "Bluetooth" from the menu that appears.
   • 3 Ensure that the first line on the Bluetooth menu says "Bluetooth On." If the line reads "Bluetooth Off," select the line and change the setting to have the Bluetooth powered on.
   • 4 Power on your Motorola headset and put it in discovery mode. Discovery mode is indicated by a solid (non-blinking) blue light on the back of the headset. You can put your headset in discoverable mode by pressing and holding down the "On" button for eight seconds. In the case of a headset with a sliding on/off switch, simply slide the button to the "On" position and hold it there for eight seconds.
   • 5 Select "Search for audio enhanc" from the available options on your Bluetooth menu.
   • 6 Select your Motorola headset from the list of items that appear. Your Nokia phone will list all of the Bluetooth-enabled devices powered on nearby.
   • 7 Enter the passkey for your Motorola headset when prompted. The default passkey for all Motorola headsets is 0000.
   • 8 Start using your headset with your Nokia phone. The two will be permanently connected, with no need to repeat the pairing process in the future.

Read more: How to Connect a Nokia Cell Phone to Motorola Bluetooth ' eHow.com

One thing that can do this is IF you are in a very weak signal area. The phone CRANKS the power up to maintain contact with a tower, even if you are not using the phone to talk so the tower knows you are available. When going into a real weak area, turn the phone off as the power it burns will drain the battery... Usually in one day or so. The phone noticeably heats up as well.

Try charging the battery with the phone shut off - overnight (if you don't already do that). Check the phone out for a day and nothing changes then look into replacing the battery(out of pocket $40-$60 usually for a brand name battery) . If the phone is under a year old and you received it new from your wireless carrier, the phone would be covered under a factory warranty. What that means is you can contact the phone manufacture and get a free replacement battery within the first year. A thought to keep in mind however, if you use your phones extra's like bluetooth or wireless connections if available - this can affect battery life as well. If you haven't already - try setting your bluetooth (if you use it) to the setting that it only works when you power on your bluetooth headset if the phone allows this.

if you have had your bluetooth on or have been listening to music for a long time that can drain the battery very quickly . the other problem could be if you are not lettting it die of totally then charging it the battery remembers so when you do charge it the battery dont last long . try turning your bluetooth off or just lettin your battery die off totally then charge it fully

turn off bluetooth if its on because bluetooth wastes battery life on any phone.

go to Tools > Settings > Personal > Display > and change the light settings. if its on the highest light setting then that would be a major factor on why your battery is draining quickly.

hold the menu button and check if any applications are still open, close any that you don't need open.

if the bluetooth is on that could also be draining the battery quickly if all these things are off and the battery still drains quickly then replaced the battery

Do you have bluetooth enabled? If you do and you are not using it to connect to a headset or other device, it will drain the battery quicker