Question: are kastar batteries any good?
Answer: 3.0 out of 5 starsKastar Batteries and Charger -positive and negatives, of course! The batteries and charger are a good price. the batteries work fine in my Nikon D3300 camera. ... While the Kastars are rated as 1700 mAh, much more than the stock 1200 mAh or so batteries, this was not at all evident in battery life.