Normally, it's a process of elimination to figure out where the problem lies, or at least where it doesn't lie, and there is likely a fault with at least one of three items: For example, if your AC adapter is recognized and works on another Dell laptop, then the problem is likely your charging jack or charging circuit. If a known-good Dell AC adapter is recognized by your laptop, then the problem is likely your AC adapter. However, given what you describe about your AC adapter, it's likely that it is the problem. If the AC adapter is not recognized by the system, then usually it will not charge the battery (at least while the system is running). It might charge when the system is shut down. You need at least a 65-watt (3.34 A) charger. Parts-People sells genuine Dell parts, and they have a used charger for your laptop that comes with a one-year warranty for USD $21.95.
So 4 Months ago i bought a dell latitude e7250 Refurbished and its warrenty was over. It came with a charger which used to work but after a while due to faulty insulation or something the wires shorted and died. I had another charger which was used for a dell inspirion but its pin end was broken. So i cut the bottom part for the original chrager and mended it. This charger worked for a while but now it wont charge for some reason. I also used to get these qarnings whenever using the charger   Alert The Ac power adapter wattage and type cannot be determined. The battery may not charge. The system will adjust the performance to match the power available.   I check bios and the battery health was excellent. I even ran diagnostic and got no error. In the bios the battery was Idle. I checked if the charger was functional by removing the battery and it worked. By the way when i plug in the charger the charging icon does not light up. I tried everything i could. I tried to downgrade bios to check if it was a bios issue. I tried different wall outlet. The power rating was pretty similar for both chargers. The original dell it was 4.0 A and fkr the lapcare one it qas 3.33A. [IMAGE] Do i have to buy another dell charger. I really hope there is some other solution rather than buying a new charger since its kinda expensive. It costs around 30$   Btw thanks in advance.
Dell Latitude E7250 Plugged in but not charging