The BA811 is an original replacement Li-ion Polymer battery designed for the Meizu BlueCharm 6T (also known as Meizu M6T). Here are the key details:

Type: Li-ion Polymer

Capacity: Typically around 3000mAh (though the exact capacity can vary slightly basedon the source)

Voltage: 3.8V

Compatibility: Meizu Blue Charm 6T/ Meizu M6T

This battery is engineered to restore your device's original battery life and performance. it'san ideal choice for anyone looking to replace a worn-out or damaged battery.Would you like more information on where to purchase it or how to install it?