Sure, but do you know what cells these batteries use? They're usually cheap chinese ones, of less than half the rated capacity. A proper replacement will cost m

Sure, but do you know what cells these batteries use? They're usually cheap chinese ones, of less than half the rated capacity. A proper replacement will cost much more. I did go mid-way, buying high quality Japanese cells and installing them in a chinese pack. A bit cheaper than a new official battery, but required some work.