A low level of electrolyte fluid will cause the battery to discharge quickly.

Inspect the electrolyte level at least once a week. If it is low, remove the caps and add enough distilled water to bring the level between the upper and lower level (illustration).
Do not overfill.
Examine the specific gravity of the electrolyte with a hydrometer, especially during cold weather. If it is low, recharge the battery.
Battery Maintenance
Battery RechargingMazda 6 Owners Manual: Operating the Compact Disc (CD) Player
NOTE
If a disc has both music data (CD-DA) and MP3/WMA/AAC files, playback of the
two or three file types differs depending on how the disc was recorded.
Inserting the CD
Insert the CD into the slot, label-side up. The auto-loading mechanism will set
the CD and begin play.
NOTE
There wi ...
Mazda 6 Owners Manual: How to Use Pandora® (Some models)
What is Pandora®?
Pandora®*1 is free personalized Internet radio. Simply enter a favorite artist,
track, genre, and Pandora® will create a personalized station that plays their music
and more like it. Rate songs by giving thumbs-up and thumbs-down feedback to further
refine your station, d ...