Motorola I290 - Manual (Page 99)

Perchlorate Label 93
California Perchlorate Label
Perchlorate Label Some mobile phones use an internal, permanent backup battery on
the printed circuit board that may contain very small amounts of
perchlorate. In such cases, California law requires the following
label:
“Perchlorate Material - special handling may apply. See
www.dtsc.ca.gov/hazardouswaste/perchlorate.”
There is no special handling required by consumer.