Zte Zmax User Manual page 151

Problem
Shortened
standby time
Possible causes
The standby time is related to
your service provider system
configuration. The same
phone used with different
service providers' systems
will not provide exactly the
same length of standby time.
The battery is depleted.
In high temperature
environments, battery life will
be shortened.
If you are not able to connect
to the network, the phone will
continue to send out signals
as it attempts to locate
a base station. Doing so
consumes battery power and
will consequently shorten
standby time.
If you are located in an
area where signaling
is weak, temporarily
power off the phone.
Use a new battery.
Change your location
to one where the
network is accessible,
or temporarily turn off
your phone.
149
Possible solution