Maxcom MM428 User Manual

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19. Battery Information
There is a battery in the phone. The battery can be
recharged with a charger that is included in the set.
The battery life depends on different conditions
under which the phone is used.
The battery life depends on conditions in which your
phone is used. Your distance from a relay
transmitter, number and the length of phone calls
significantly reduce the battery life. While moving,
the phone switches between relay transmitters and
such switching also significantly affects the battery
life.
After multiple charges and discharges, the battery
eventually will lose its ability to hold a charge.
Please get a new battery if you notice a significant
drop in the battery’s performance.
Use only batteries recommended by the
Manufacturer. Do not leave the charger on longer
than 2-3 days.
Do not keep the phone in excessively hot places.
High temperatures might negatively impact both the
battery and the phone.
Do not use a battery that is clearly damaged. Doing
so might cause a short circuit, and might damage
your phone. Make sure to install the battery in
accordance with polarization.

Maxcom MM428 Specifications

General

Display diagonal	1.8 \
Display resolution	160 x 128 pixels
Flash card support	Yes
Compatible memory cards	MicroSD (TransFlash)
Maximum memory card size	4 GB
WAP	-
Data network	GSM
SIM card capability	Dual SIM
2G bands (primary SIM)	900, 1800 MHz
Mobile network generation	2G
Multimedia Messaging Service (MMS)	Multimedia Messaging Service (MMS) is a standard way to send messages that include multimedia content to and from a mobile phone over a cellular network
Talk time (2G)	5 h
Battery capacity	800 mAh
Standby time (2G)	240 h
Subscription type	No subscription
Type	Senior phone
Product color	Black, Red
Form factor	Bar
Personal info management (PIM)	Alarm clock, Calculator, SOS

Weight and Dimensions

Depth	13 mm
Width	54 mm
Height	116 mm
Weight	78 g