CHARGING
For optimum charging results, the built-in charger requires a USB power supply capable of at least
2-3A output. Using a power supply with a lower output will result in very long charge times or the
transmitter not charging if it is powered on while attempting to charge.
The rst time the transmitter is charged, the charge time may be 6-7 hours. Charge the
transmitter when the low battery alarm sounds. See the System Settings section for information
on setting the low battery alarm level.
Always charge the transmitter on a heat-resistant surface.
CAUTION: Never change the low voltage limit for Li-Ion batteries below 3.3V. Doing so
could over-discharge the battery and damage both battery and transmitter.
CAUTION: Never leave a charging battery unattended.
CAUTION: Never charge the battery outside of the transmitter. Charging the battery
outside of the transmitter may interfere with the battery monitoring system, which can
give false low battery warnings.