Power System; Main Power; Backup Power - Unitech HT630 Reference Manual

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Chapter 2

Power System

The HT630 is powered by a rechargeable 3.7V 900mAH Lithium-Ion battery pack. The

main battery should be sufficient for daily operation up to 10 hours (based on 1 bar

code scan every 5 seconds). However, since actual operation requirements may vary,

it is possible to get a shorter result than the estimated operating times.

A Lithium battery is used as the secondary power source to back up the data on the

HT630. The RTC (real time clock chip) and RAM memory also help to prevent data

loss.

Normally, the HT630 gets power from the main battery to back up the RTC and RAM.

This also puts the backup battery in standby mode. When the main battery is removed

or below the required level to back up the RAM and RTC properly, the power circuit of

the HT630 automatically switches to the backup battery for power.

It is recommended to always keep the main battery charged. If the main battery loses

charge, the backup battery is capable of storing data for up to 6 months.

As long as the main battery is charged, you will not have to replace the backup

battery. If you do replace the backup battery, all data stored on the device will be lost.

All data must be backed up before replacing the backup battery.

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