If you have read it correctly you can see he tells you the temp sensor is not working. Enough reason to not use it in a phone as it will destroy it under heavy usage!
He also states it has NO more power than an original battery.
And last but no least the battery itself swells more than an original one so you will NOT be able to pull it out or back in again.
So the answer is get a replacemtn battery and not a cheapo of ebay as they will most likely kill the DHD you use it in.