Specifications:

1.Color: Black
2.Battery charger Input :  5V 2A
3.Battery charger Output :  4.4V 700mAh
4. Hero 9 battery Max voltage：4.40V
5. Capacity：3.85V  6.9wh 1800mAh

What you get:

2 x 1800mAh lithium-ion rechargeable batteries,

1 x 3 Channel Hero 9 Battery Charger,

1 x 3.3ft Type-C Cord.

Compatible Model

-GoPro Hero 9 AHDBT-901
-GoPro Hero 10 AHDBT-901