When your MiFi has charged for more than 16 hours straight, it enters Battery Preservation Mode and the battery level is maintained between 70% and 80%*. This helps prevent overcharging and preserves the integrity of your battery.
You can disable Battery Preservation Mode on the touchscreen (Menu > Settings), or on the Admin web UI (Settings > Preferences).
*On some devices, Battery Preservation Mode maintains battery level at 50% - 60% instead of 70% - 80%.
