In truth, I had ordered 2 grinders to replace my 20 year old broken one. The first one, the button that one needs to be held down manually while grinding. This option did not really appeal to me. This was the first to arrive. I discovered that holding the button or pulsing for about 10 seconds was not a problem. When the second one arrived with dials and fancy things. Big problem, not charged. I plugged it in and told myself that tomorrow is another day. During that day, I had visions of my coffee grinder dying mid grind for want of a charge. So, the rechargeable one goes back tomorrow. I would rather hold the button for 10 seconds than run out of power altogether and have no coffee.