Publication 1756-UM001G-EN-P - January 2007
Maintain the Battery 125
Do not decrease the time after the BAT LED turns on.
IMPORTANT
If the BAT LED turns on when you apply power to the controller, the remaining
battery life may be less than this table indicates. Some of the battery life may
have been used up while the controller was off and unable to turn on the BAT
LED.
Worst-case Estimates of 1756-BA1 Battery Life
Controller Temperature Time Before BAT LED Turns On Time after BAT LED turns on
and Power Is Cut Off
Power off 100% Power off 50% Yearly
decrease
1756-L55M12
1756-L55M13
60 °C (140 °F) 57 days 110 days 23% 69 hours
25 °C (77 °F) 63 days 123 days 17% 76 hours
0 °C (32 °F) 60 days 118 days 17% 73 hours
1756-L55M14 60 °C (140 °F) 29 days 57 days 23% 35 hours
25 °C (77 °F) 30 days 61 days 17% 37 hours
0 °C (32 °F) 24 days 48 days 17% 30 hours
1756-L55M16 60 °C (140 °F) 15 days 30 days 23% 18 hours
25 °C (77 °F) 13 days 27 days 17% 16 hours
0 °C (32 °F) 6 days 12 days 36% 7 hours
1756-L55M22
1756-L55M23
Use the values for the 1756-L55M13 controller.
1756-L55M24 Use the values for the 1756-L55M14 controller.
1756-L63 60 °C (140 °F) 22 days 43 days 23% 6 hours
25 °C (77 °F) 21 days 42 days 17% 28 hours
0 °C (32 °F) 14 days 28 days 17% 2.5 days
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