User's Manual

16
The MD-150 device contains two rechargeable batteries. All rechargeable batteries degrade over
time. Thus, the possible usage times for the MD-150 after a full charge can become shorter over
time than when the device was new.
The MD-150 device uses a Li-ion Polymer battery.
If you are in a hot environment, be aware that it can affect the ability to charge the battery. The
internal temperature must be between 0 ℃/32 ℉ and 45 ℃/113 ℉ for the battery to charge. If
the internal battery temperature rises above 45 ℃/113 ℉ the battery will not charge at all.
Avoid exposing the MD-150 device to fire or to temperatures above 60 ℃/140 ℉. These
conditions may cause the battery to malfunction, generate heat, ignite or explode. Be aware that
it is possible, in a worst-case scenario, for temperatures to reach greater than those stated above
in, for example, the trunk of a car on a hot day.
Only charge the MD-150 battery in an ambient temperature of 0 ℃/32 ℉ to 45 ℃/113 ℉.
Only qualified personnel with appropriate service documentation should replace the backup
battery. Otherwise, personal injury or equipment damage could occur.
Use only the supplied power adapter to charge the MD-150 device. Using unauthorized power
adapters may severely damage the MD-150 device.
For safe operation of the MD-150 device, use only charger and accessories approved by Device
Manufacturer.
If the Power Supply Cord is damaged it needs to be replaced by Service Personnel only. Do not
use the Power Sup- ply Cord until replaced.
Disconnect the AC power plug of the Power adapter from the wall socket when not charging the
device and disconnect the power cable from the device.
Special regulations apply to shipping devices containing Li-ion Polymer batteries. If dropped,
crushed, or short- circuited, these batteries can release dangerous amounts of heat, may ignite,
and may be dangerous near fires.
The plug/adapter plug pins insulate the device from the main supply. Do not position the device
in a position where it is difficult to disconnect the device from the supply mains to safely
terminate operation of the device.
8.2 Temperature
Due to use in direct sunshine or in any other hot environment the MD-150 device may have hot
surfaces. There is a built-in temperature sensor that monitors the temperature. If the sensor
detects high internal temperature, the device will automatically trigger a Windows Shut Down or
Hibernate (depending on Windows Power Button configuration). It may take a while before MD-
150 device can be restarted as the unit may first need time to cool down.