DELL J0PGR Laptop Battery for Latitude 12 5285 5290 2-in-1 T17G T17G001 T17G002 Series JOPGR 0J0PGR 1WND8 X16TW 0X16TW RDYCT 0RDYCT 0FTH6F FTH6F 0FTG78 FTG78 0R9XM9 R9XM9 7.6V 42Wh

Laptop Battery Instruction:

1. Discharge the new battery use to 5%(not to 0%) and then charge to 95%, and cycle 3-5 times.

2. Do not disassemble, crush or puncture. Do not dispose of in fire or water.

3. If you remove battery for a long time, charge more than 80% at least one time within one months.

4. When using the battery, care should be taken to prevent exposure and moisture.

Installing A New Battery:

1. Before disassembling your laptop, put the old battery charge below 25%. If a fully charged lithium battery is accidentally punctured, it will have serious consequences.

2. Please keep every screw you removed.

3. Make sure that interface is correctly connected to its socket.

4. Please protect your screen and touchpad.

If the battery cannot be recognized by the laptop, it seems like there logic in the BIOS (ACPI) that needs to be reset with the introduction of a new battery.

1. Remove all battery drivers.

2. Remove battery.

3. Connect laptop using AC charger, double check no battery drivers installed

Connect battery.

4. Drivers will install automatically.

5. Full charge the battery by ac adapter.

6. Leave charger and let the battery drain to shut off.

7. Repeat full charge and full discharge about 2 times.