Product Specifications:

There is a brush 21v3ah, one electricity and one charge.

Brush 21v3ah, two electricity and one charge

There is a brush 21v4.5ah, one electricity and one charge.

Brush 21v4.5ah, two electricity and one charge

There is a brush 21v8ah, one electricity and one charge.

Brush 21v8ah, two electricity and one charge

Brushless 21v3ah, one power, one charge

Brushless 21v3ah two electricity one charge

Brushless 21v4.5ah, one electricity and one charge

Brushless 21v4.5ah two electricity one charge

Brushless 21v8ah, one power, one charge

Brushless 21v8ah, two electricity and one charge

Brushless 21v9ah, one power, one charge

Brushless 21v9ah two electricity one charge