Mazda Mazda3 2019 Owner's Manual page 436

Maintenance and Care
Owner Maintenance
NOTE
Before performing battery maintenance,
remove the battery cover.
▼ Battery Maintenance
To get the best service from a battery:
Keep it securely mounted.

Keep the top clean and dry.

Keep terminals and connections clean,

tight, and coated with petroleum jelly or
terminal grease.
Rinse off spilled electrolyte immediately

with a solution of water and baking
soda.
If the vehicle will not be used for an

extended time, disconnect the battery
leads and charge the battery every 6
weeks.
6-24
▼ Inspecting Electrolyte Level
A low level of electrolyte fluid will cause
the battery to discharge quickly.
1. Upper level
2. Lower level
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 Recharging
NOTE
Before performing maintenance or

recharging the battery, turn off all
accessories and stop the engine.
To disconnect the battery, remove the

negative lead first. Install it last when
connecting the battery.
Be sure to remove the caps before

recharging the battery.
Do not quick-charge the battery.
