I use my Surface Pro 2017 mainly as a desktop replacement with Surface Dock and external keyboard/mouse/monitors/etc, so 95% of the time it's on AC power. A couple times (like right now) I notice the battery icon on the Taskbar not showing fully charged. In fact, it shows "xx% available (plugged in, not charging)". Whenever I've seen the charge get to 10% or so, I've always disconnected and reconnected the dock (charging) and when it's reattached then the battery will show "charging." Is that a normal process and W.A.D.? i.e. When the battery drops to a certain level will it automatically resume charging? A previous Lenovo notebook had a manual feature to deep cycle the battery: it would charge to 100%, then drop to almost 0% and then recharge to 100%. Is that what my SP is doing, or is something amiss? The Lenovo also had a setting which was recommended when using the notebook on AC power: it would only charge to 60% which was apparently better than holding and maintaining a constant 100% charge.