Hello all, I’m new here and have a question for you. My diva has a , well already big problem. It started with that my battery is empty from the 3 key cards (replacement also) within a week? Assuming that these are broken I had ordered one at the friendly and opened a “defect” card. I had to find out that in the card, with me, only one battery is in it and that one can change ( CR2025). The new card k At the top and we had to fasten immediately that also the battery of this card only one week lifts. Back to the friendly then the Diva built in a new reader, because there was the assumption that this reader continuously queried the card (Keyless Entry&Drive) and thus the battery drained. I measured the batteries and they have after a week instead of 3.22 volts (new battery) only 2.7 volts. Now it’s about what it could be about to have some insight so that the friendly does not get the blue from the sky. So far it has cost about 500 euros. Renault Espace JK 2,0 cdi 173 hp changed: KeyCard reader in the car MFG Biker010_1 ,