Promax PROLITE-50 Manual De Instrucciones página 106

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Procedure of replacing the clock battery.
To take off cover of the battery cell;.
To remove the battery NiMH to the equip.
Under the battery is the backup battery for internal clock. Replace if
necessary it must be of type.
Connect and replace the NiMH battery.
Chargeable
Battery
Page 48
Button cell 3V Li CR1220.
Jack for
Chargeable
Battery
Figure 43.- Replacing the clock Battery.
USER'S MANUAL. PROLITE-50/51/52
RTC Clock
Battery
11-2015