JOTACT 7WNW1 Laptop Battery Replacement for Dell Latitude 7424 5424 5420 Rugged Extreme Series Notebook DMF8C 0DMF8C 11.4V 51Wh 4342mAh 3-Cell

First, turn off the laptop and disconnect the power.
Open the back cover of the notebook, disconnect the connection between the old battery and the motherboardthen remove the old battery with a tool.
Remove the old battery, put the new laptop battery into the battery box, then connect the wires of the new battery, and finally close the back cover of the laptop to complete.
If you have questions about installing a new battery, you can search for the installation of laptop/tablet models on YouTube. This method may help you.
1, Change your laptop power plan settings, and choose the power saver plan. Then Change advanced power settings, and scroll down to find processor power management. Click the On-battery option and reduce the processor state to 20%.
2, Always keep your laptop neat and clean. The dust easily enters the hardware through the vents which are meant to release the heat generated from various computer components.
3, Close Wi-Fi, Bluetooth, and other settings. This can help your computer save precious battery life.
How to install the battery HOW TO MAXIMIZE THE BATTERY LIFE?