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: Sunshade
The sunshade can be opened and closed by hand.
The sunshade opens automatically when the moonroof is opened, but must be closed
by hand.
CAUTION
The sunshade does not tilt. To avoid damaging the sunshade, do not push
up on it.
Do not close the sunshade while the moonroof is opening. T ...
Mazda 6 Owners Manual: Head Restraints
Your vehicle is equipped with head restraints on all outboard seats and the rear
center seat. The head restraints are intended to help protect you and the passengers
from neck injury.
WARNING
Always drive with the head restraints installed when seats are being used
and make sure they are pro ...