Bought a new P4 Battery on-line . . DEAD ON ARRIVAL. Would not even light up. Sent it back to Amazon and got a refund at least. Bought another new one from Best Buy. DOA as well. It would light up briefly but would not charge or power up a P4. Took it back and they replaced it. This time it took a charge and flew for over 22 min to 3:40 min left. Back in the 3way dji Charger though I noticed it wiggles easily back and forth in the slot. ( sloppy fit). My original two are snug fit and don't wiggle after insertion for charging. Whoever is the new supplier for dji batteries is not building them to the same tolerances as the originals shipped with the units . . and their quality control is the pits. . . ie >66% failure rate by my count. Anyone else seeing this?