Casio 5054 Manual page 52

Battery Power Indicator and Power Recovery Mode indicator
The battery power indicator indicates you the current status of the rechargeable
battery's power.
Battery Power
indicator
Level Battery Power Indicator
1
(H)
2
(M)
3
(L)
(Charge Soon Alert)
4
(CHG)
5
(CHG)
Function Status
All functions enabled.
All functions enabled.
Auto and manual receive,
illumination, and beeper
disabled.
Except for timekeeping, all
functions and display
indicators disabled.
All functions disabled.
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