Usually at least 3-4 hours.
Intelligent sweeping robots on the market generally use two kinds of batteries: one is nickel-metal hydride batteries, and the other is lithium batteries. There are big differences in the application of these two batteries. Some low-end intelligent sweeping robots use nickel-metal hydride batteries as power, charging time is 6 to 12 hours, and use time is 30 to 200 minutes, and the cleaning ability of such products is very poor, almost like a toy. Some well-known old brands of high-end machines on the market, basically use lithium batteries, charging time is 3 to 4 hours, can be used for 40 to 120 minutes, cleaning capacity is also good.
The charging time of the sweeping robot is generally 3 to 4 hours, but the first three charges can best be charged for 12 hours