up to 950mAh: Low capacity. Mainly found in compact (pocket) cameras, action cameras, or older, small mirrorless models. Ideal for limited, everyday use
960 - 1950mAh: Medium capacity. This is the standard size for most amateur and semi-professional mirrorless and DSLR cameras on the market. It offers good autonomy for a typical outing or photo shoot.
2000mAh and above: High capacity. Intended for modern professional full-frame cameras, high-end DSLRs, and battery grips. An ideal choice for long setups, vlogging, continuous video, or professional shoots (e.g. weddings).