According to the Ultimate Ears website, the UE Boom 2 takes approximately 2.5 hours to charge to full using the included micro-USB cable and a standard USB port. However, the actual charging time may vary depending on the following factors:
- The ambient temperature: The UE Boom 2 will charge faster in a warm environment than in a cold environment.
- The type of USB port: A USB 3.0 port will charge the speaker faster than a USB 2.0 port.
- The condition of the battery: An older or damaged battery may take longer to charge.
To charge the UE Boom 2, simply plug the micro-USB cable into the charging port on the speaker and the other end into a USB port on a computer or wall charger. The speaker will turn on and the LED indicator will turn red to indicate that it is charging. When the battery is fully charged, the LED indicator will turn green.
Once the speaker is fully charged, you can disconnect the micro-USB cable and use the speaker for up to 15 hours on a single charge.
Here are some tips for charging the UE Boom 2:
- Use the included micro-USB cable and a standard USB port.
- Avoid using third-party charging cables and chargers, as these may not be compatible with the speaker and could damage it.
- Charge the speaker in a cool, dry environment.
- Do not charge the speaker in direct sunlight.
- Do not overcharge the speaker. When the battery is fully charged, disconnect the micro-USB cable.