Hope this will help
DELL Latitude e4300 battery not charging?
If your DELL battery Latitude E4300 when plugged in but not charging or not recognized, what should you do now?
1. First, you should check if batteries Latitude E4300 DELL you bought is compatible with your original battery and your laptop model.
2. Computer's CMOS cann't identify the battery, you need to re-plug the battery, or the next computer upgrade or restore the CMOS settings, and the computer set to identify the hardware interface automatically.
3. Maybe the charging chip of computer's motherboard was damaged, it cann't charge the battery, you need to change a new chip on the motherboard.
4. DELL Latitude E4300 battery won't charge when zero voltage or low voltage in local circumstances. You'd better discharged the battery completely, then slow charge more than 10 hours to activate the battery.
5. Check whether the power adapter works normally, maybe this is the adapter power cord problem so that battery will not charge.
6. Maybe laptop battery DELL Latitude e4300 was used for a long time, DELL Latitude e4300 battery life is limited, you need to change a new battery.
7. Maybe battery is damaged during using or transit.You need to change a new battery.
If your DELL Latitude e4300 laptop battery stops charging or not holding charge: The most likely, cheapest, and fastest way to solve this problem is to keep laptop plugged in and charging, turn your machine off, take out battery, restart, then reinstall the battery, turn on. Hopefully this works for everyone , if not, you honestly probably do need a new battery.