Full load 25g. Grinding time 25 seconds. on the very shallow Fine - 3 min.
The battery charge is enough for 2-3 such grinds. Inside is a HY18650 2000mAh battery.
Replaced with Liitokala 3400mAh (requires soldering iron and skill). To disassemble (before unscrewing the 3 screws), you need to pull out the button pusher from the outside. It is glued onto the push bar using super glue. The blade of the knife will "fit" into the protruding part of the button (~1mm) and pry it from the body until it breaks off and comes out, possibly on both sides simultaneously. Overall, not bad for the money.
Great product quality. The only lack is that the finest grounding is a bit to coarse for an espresso coffee.
Despite this i am very satisfied with the product.
It has pleasantly surprised me. The materials feel better than I expected for this price. The grind settings work correctly: I can get a fine grind for the moka pot and also a coarse grind for the French press without any problem. I couldn't say how much precision there is between very close numbers, but the difference between more distant settings is quite noticeable. I still need to check its durability. The packaging arrived somewhat damaged, but fortunately the grinder does not show any dents or apparent flaws.
Very good! It also turns off automatically too! Just put the beans in, close up and press the button to start and it will stop on its own!