Rockwell Automation 1785-Lx0E,D178510.5 QUICK START ETHERNET PLC-9 - Manual (Page 24)

Publication 1785-10.5 - November 1998
Specifications A-3
Battery Specification Battery Type
Ethernet PLC-5 processors use 1770-XYC batteries which contain
0.65 grams of lithium.
Average Battery Lifetime Specifications
Worst-case Battery Life Estimates
Battery used in this processor: At this temperature: Power off 100%: Power off 50%:
Battery Duration
after the LED lights
1
PLC-5/20E 60°C 256 days 1.4 years 11.5 days
25°C 2 years 4 years 47 days
PLC-5/40E, -5/80E 60°C 84 days 150 days 5 days
25°C 1 year 1.2 years 30 days
1 The battery indicator (BATT) warns you when the battery is low. These durations are based on the battery supplying the only power to the
processor (power to the chassis is off) once the LED first lights.