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7. MEMORY CARD AND BATTERY
7.2 Battery Specifications (CPU Module and Memory Card Batteries)
7.2.1 Specifications
(1) CPU module batteries
*1 The lithium content of batteries manufactured in July 2017 or earlier differs from this list. For 
details, refer to the following.
Changes in battery parts (FA-A-0242)
For the battery directive in EU member states, refer to Appendix7.
(2) Memory card batteries
WARNING
Correctly connect the battery connector.
Do not charge, disassemble, heat, short-circuit, solder, or throw the battery into the 
fire.
Doing so will cause the battery to produce heat, explode, or ignite, resulting in injury 
and fire.
Item
Model
Q6BAT
Type Manganese dioxide lithium primary battery
Initial voltage 3.0V
Nominal current 1800mAh
Battery life when stored Actually 5 years (at ordinary temperature)
Battery life when used Refer to Section 7.7.1.
Lithium content
0.57g
*1
Application
Power failure compensation for the 
built-in RAM
Item
Model
Q2MEM-BAT
Type Graphite fluoride lithium primary battery
Initial voltage 3.0V
Nominal current 48mAh
Battery life when stored Actually 5 years (at ordinary temperature)
Battery life when used Refer to Section 7.7.1.
Lithium content 0.01g
Application Power failure compensation for the SRAM card