Hi Esther, We are sorry you are not happy with your purchase and have responded to your case on eBay.
We understand that you believe the battery you received is not genuine because of the reasons below so please let us explain.
1. You received at 54Wh battery rather than the advertised 47Wh battery - We are sorry this was not communicated to you before shipping your order, we had run out of stock of the 47Wh batteries so upgraded you to the 54Wh. This is still a genuine Dell battery along with the 3 other battery sizes Dell make for the Dell E7440/E7450 laptops, 34Wh, 40Wh, 45Wh.
2. There is some Chinese writing next to the part number - As almost all Dell parts are made in China there is Chinese writing on almost all parts, if you search on google for this batteries part number 3RNFD on google you will find the same writing next to the part number on all the genuine batteries being sold.
We are sorry for the confusion and any inconvenience this has caused you and will happily refund you for your purchase under our no quibble 30 day return policy.