I just received back my H2D from Hasselblad after a three week repair to the back. It now seems that the battery cannot hold a charge. I attempted to have Hasselblad exchange the battery grip without success to this date. However, they gave me instructions on how to (try to) put the battery back in working condition. What they told me to do was to fully charge the battery (charge overnight) then attach battery grip and hold down menu and flash (buttons). Not sure I really understand even though I did what they told me to do without success. Can someone advise me on how I might get the battery grip back to working condition so it holds a charge.