Mazda 3 Sedan 2020 Owner's Manual page 480

Maintenance and Care
Owner Maintenance
Keep all flames and sparks
away from open battery cells because
hydrogen gas is produced from open
battery cells while charging the
battery or adding battery fluid:
Flames and sparks near open battery
cells are dangerous. Hydrogen gas,
produced during normal battery
operation, could ignite and cause the
battery to explode. An exploding
battery can cause serious burns and
injuries. Keep all flames including
cigarettes and sparks away from open
battery cells.
NOTE
Before performing battery
maintenance, remove the battery
cover.
6-30
▼ 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 cables and charge the battery
every 6 weeks.
▼ Battery Replacement
Contact an Authorized Mazda Dealer
for battery replacement.