Web alarm clock for 3:49 a.m.
You are getting the emergency lights charged before the power interruption, while there is still time to check every unit without rushing. Set the alarm for 3:49 am so you can inspect the charging indicators, cables, and spare batteries before the lights may be needed. With 4:00 am approaching, you can use the remaining minutes to place each lamp where your household can reach it easily.
While you move between the emergency lights, keep this alarm page in the foreground and leave your browser active. A tab sent to the background may be slowed or suspended, especially when the phone starts conserving power. If the page is closed or the phone sleeps, the alarm may not sound, so it should not be your only reminder for checking the emergency lights before an outage.
Your home and street may be unusually quiet at 3:49 am, but that can change as early jeepneys, tricycles, dogs, or neighbours begin making noise toward 4:00 am. Keep the phone close and choose a volume you can hear over those sounds without waking everyone nearby. Before settling down again, confirm that each emergency light is charging and that its cable is safely away from walkways.