Can I charge my ZeClock with a wall plug (110V)? January 29, 2015 16:21 Yes, it can be charged with a wall plug (with its USB charging clip). Related articles I have plugged ZeClock to my computer but it seems that it is not charging… no battery indicator shows … I cannot turn on my ZeClock… How can I change the quartz watch battery ? How long should I charge ZeClock for the first time? How long does the battery last after a full charge?