Xiaomi Vacuum Cleaner G11 Extended Battery Pack

Battery Type: High-density Lithium Polymer (Li-Po).
Capacity: 3050mAh (Rated).
Compatibility: Xiaomi Vacuum Cleaner G11 only.
Dimensions: Approx. 16.5 x 8 x 3.6 cm (or 8.5 x 4 x 17 cm, depending on source).
Weight: ~456g (or ~122g for the pack itself).
Charging: Supports dual charging with the vacuum via the wall-mounted rack.