JBL FLIP 3, Service Manual

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1.5.2 Battery Charging Time
System at Power off mode, charging time is less than 3. Hour using Harman 5V/2.3A adaptor.
1.5.3 Battery power off current
System at power off mode, battery current is less than 100uA
1.5.4 Battery Playtime
Test Audio Signals:
3 pre-selected MP3 tracks
Requirements:
Estimate Playtime > 8 hours for Music Playback
Test Condition (Ambient Temperature 23 +/-5 degree)
1. Insert fresh and fully charged Li-Poly cells into the DUT. Connected a multi-meter at the battery
terminals to measure its voltage.
2. Set the DUT to Bluetooth Mode. Use iPhone as the music source.
3. Set the DUT to maximum volume and playback a 1 KHz 0dB music track through the iPhone. Record
the Rated Output Power (ROP).
4. Adjust the volume step of the iPhone until the audio output of the DUT is ¼ of ROP. Record the
volume step on the iPhone.
5. Set the iPhone’s volume to the volume step as recorded in step 4. Playback 3 pre-selected MP3
track in repeat play mode. Record the start time.
6. Measure the battery voltage every 5 to 10 minutes interval. When audio is inaudible, record the end
time. Compute the battery playtime for 3 pre-selected MP3 track.
Note, please don’t adjust iPhone’s volume during set up and testing since that will change the DUT’s
volume by AVRCP.
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