Performance Specifications Of Battery; Battery Life - Mitsubishi Electric MELSEC iQ-R Series Configuration Manual

4.5

Performance Specifications of Battery

This section describes the performance specifications of the battery used for the CPU module.
Item
Type
Initial voltage
Nominal current
Battery life when not used
Lithium content
Application
*1 The Q7BAT-SET includes a battery holder.

Battery life

There are two types of values for describing a battery life: actual service value and guaranteed value.
• Actual service value: The battery life estimated based on the value actually measured by Mitsubishi under a storage
ambient temperature of 40 This value varies depending on the characteristics and variation of the components, and
should be referred to as a reference value.
• Guaranteed value: Refers to the battery life at 70 guaranteed by Mitsubishi in a storage ambient temperature of 70
based on the characteristics of the memory device provided by the component manufacturer
When used with a programmable controller CPU
The following table shows the actual service values and guaranteed values if the Q6BAT or Q7BAT is used with a
programmable controller CPU.
■ Actual service value (reference value)
Extended SRAM Power-on time
*1
cassette ratio
Not used, 0 to 100%
used (1MB type),
used (2MB type),
used (4MB type),
used (8MB type)
*2
Used (16MB type) 0%
30%
50 to 100%
Q6BAT
Manganese dioxide lithium primary battery
3.0V
1800mAh
Approximately 5 years (room temperature)
0.52g
To hold backup data and clock data
Actual service value when used with the
R04CPU or R04ENCPU
Q6BAT Q7BAT
43800 hours (5.00 43800 hours (5.00
years) years)
30100 hours (3.43
years)
43000 hours (4.90
years)
43800 hours (5.00
years)
*1
Q7BAT
5000mAh
1.55g
Actual service value when used with the
R08CPU, R08ENCPU, R16CPU,
R16ENCPU, R32CPU, R32ENCPU,
R120CPU, or R120ENCPU
Q6BAT Q7BAT
43800 hours (5.00 43800 hours (5.00
years) years)
25500 hours (2.91
years)
36400 hours (4.15
years)
43800 hours (5.00
years)
4 SPECIFICATIONS
4.5 Performance Specifications of Battery
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