I recently bought PXC 550 ii, this is the second time I charge it, it's been more than three hours already and the third led is still blinking (internet says full charge
700mah Ahb413645pct Battery Wireless Bluetooth Headset For Sennheiser Pxc 550 Battery Ahb413645pct+usb Cable+toolkit - Mobile Phone Batteries - AliExpress
Sennheiser PXC 550 Wireless , 30 hours of battery life - buy Sennheiser PXC 550 Wireless , 30 hours of battery life: prices, reviews | Zoodmall