I have a 3 year old Dell G7 7700 and the battery is due for replacement as it won't fully charge anymore and battery life on gaming is about 20 min if that.

Charges to 12.0v which should be 13.28v and putting a high load causes it to drop to 9.*v.

Wear level is strangely enough about 47% only which is way off.

Battery type: 4k1vm which is 97whr 11.4v. 

Battery is same as XPS 9560 ? Replacement ones do show up for XPS 9560 which looks identical to my G7 7700.

On my previous Dell laptop the battery was swollen up with same symptoms, this one isn't yet. 

My bios is unlocked to undervolt the CPU etc.

Really have bad luck on Amazon batteries, had one before and it burned out the bms.