After a first delivery with a possible battery to be charged, I contacted the customer service amazon who referred me to the fournisseur.Celui it offered me either a refund or an exchange. I accepted the exchange and the second battery pack is full charged and held 5 days up to 2 bars because I wanted to test the load. At this price, it is obvious that it should not be original, but the supplier has fulfilled its commitment. I put four because initially I only wanted to put.
