Battery replacement tips
For best battery performance, always use quality alkaline batteries.
When replacing batteries, make sure the replacement batteries are new and are within the
manufacturer's expiration date.
Do not mix old and new batteries.
Do not mix batteries of different brands.
● MK540 mouse battery life and replacement
Battery requirements:
● Requires 1 AA alkaline battery.
● Expected battery life is up to 24 months.
Extending battery life
Although your keyboard and mouse have a standby mode to conserve power when not in
use, there are other ways you can help extend the battery duration of your devices.
● Avoid using your mouse on dark or transparent surfaces such as glass. These surfaces
cause the optical sensor to use more power.
● Use only alkaline batteries. Non-alkaline batteries, such as NiMH or NiCd, operate at a
lower voltage and may negatively impact your battery life.
Installing a new battery
Install the battery for your mouse, making sure the battery faces the correct direction as
shown:
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