What is the reputation of Jinqishi D3? Jinqishi D3 is a high-profile electric toothbrush. What is its reputation? Let’s hear what users have to say. Excellent battery life. Many users think that the battery life of Jinqishi D3 is very good. Its battery can last for at least two weeks. This is a very long time for an electric toothbrush, and charging is also very long.