The indicator on the BOLT smart base will turn to Red when it has 50% battery. At 50% it will still last for multiple cups of coffee (1- 2 hours).
At 10% battery the red light will start blinking and eventually it will auto shutoff.
Charging time depends on if you have the basic charger or the 3 Amp fast charger. On the fast charger it takes about 1-2 hours from a complete drain. The regular charger is about 3-4 hours.
The BOLT is also designed to work with any usb type-C charger. That includes your laptop chargers, phone charges or any other product that uses a USB Type C charger.
The charging time will vary depending on volts and amperage of your own charger.