DR02P R73TC Battery Replacement for Dell Latitude 3440 5440 5450 5540 5550 7455 13-ae001ng Precision Series

Method 1: Using System Information to Find Your Laptop Model
Open the Run Window: Press the Windows + R keys simultaneously to bring up the Run window.
Access System Information: Type msinfo32 into the input box and click OK to launch the System Information tool.
Locate the System Model: In the System Summary section, you will find the System Model item listed in the right pane. This will provide you with the exact model of your laptop, which is crucial for identifying the compatible battery.

Method 2: Checking the Battery and Laptop Model Directly
Power Off and Unplug: Before you begin, ensure that your laptop is turned off and the power cord is disconnected to avoid any risk of electric shock.
Remove the Back Panel: Carefully use a screwdriver to remove the back panel of your laptop. Please proceed with caution to prevent any damage to the internal components.
Disconnect and Remove the Battery: Gently disconnect the cable attached to the battery and remove it from the laptop. Once the battery is out, you can easily check its specifications, including the type, capacity, and model number.

Type: Rechargeable Lithium-ion Battery
Model : DR02P
Voltage: 11.4V
Capacity: 54Wh 4623mAh
Cells: 3-Cell
Condition: Grade "A" cells Battery
Battery life: with a cycle at least 1000+ cycles
100% brand New from Manufacturer

DR02P 2X1V9 803W6 0803W6 R73TC GTG7N KDM9P GRWKG 803W6
1X Battery
One set of screwdrivers tool
1X User Manual
for Dell Precision 14 3480 Mobile Workstation Series;
for Dell Precision 14 3490 Mobile Workstation Series;
for Dell Precision 15 3580 Mobile Workstation Series;
for Dell Precision 15 3590 Mobile Workstation Series;
for Dell inspiron 14 Plus 7441 Series;
for Dell P170G P170G001 P127F P127F001 P169G P169G001 P165G001 P165G002 P165G003 P181G P181G001 P182G P182G001 Series;
for Dell P28F P28F004 P37G P37G004 Series.
for Dell Latitude 14 3440 Series;
for Dell Latitude 14 5440 Series;
for Dell Latitude 14 5450 Series;
for Dell Latitude 14 7455 Series;
for Dell Latitude 15 5540 Series;
for Dell Latitude 15 5550 Series;
for Dell Latitude 5340 Laptop or 2-in-1 Series;
for Dell Latitude 5350 Laptop or 2-in-1 Series;
New Batteries: When using a new battery, fully activate the battery by discharging it to 5% (not 0%) and then recharging it to 95% 3-4 times.
Overuse: Do not always use the battery at 0%, as this may damage the battery or shorten its life. 3.
Charging sequence: When charging, install the battery first, then turn on the power, when fully charged, cut off the power first, then unplug the power. 4. Long-term storage: Please store the battery in an unused place.
Long-term storage: Please store the unused batteries fully charged (charging once a month), do not store them at low battery level, which may shorten the life of the batteries.
Charger: Please do not change the laptop adapter arbitrarily, do not connect the adapter for a long time when using the battery, if the original adapter can not be used due to malfunction or damage, please change the model to avoid reducing the life of the battery due to incompatibility.

It may be caused by a missing battery. Please reinstall the battery and make sure the battery connection cable is plugged tightly with the motherboard connector.
It may be due to damage to the conductive material at the positive and negative contacts between the laptop motherboard and the battery, you can try to confirm with the original battery.
Check whether the battery driver is normal, if not, please download the appropriate driver software to update.

1.A free removal kit is included in the package, you need to turn off your laptop and disconnect the power.
2. Remove the old battery, carefully install the new battery on the battery compartment and connect the wires of the new battery.
3. I