The connector fit perfectly into my ZY-530 with no fiddling, and the 300mAh charge held up through several short flights before I had to swap it. Seems like a solid little pack for the price, though I wish it came with a spare.
Alexander★★★★★
Got a full 8 minutes of flight out of my ZY-530 on a single charge, which is a solid step up from the stock pack. The 300mAh rating feels accurate, and it dropped right into the battery bay without any fuss.
Thomas★★★★★
The connector clicks in firmly on my ZY-530, and it’s held up through a dozen flights without any sag. Charges straight off the same USB lead, and the plane climbs noticeably better than with the old pack.