Mazda MX-30 2020 Owner's Manual page 457

Maintenance and Care
Owner Maintenance
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 above the lower level
mark (illustration).
Do not overfill.
Examine the specific gravity of the
electrolyte with a hydrometer,
especially during cold weather. If it is
low, recharge the lead-acid battery.
▼ Lead-acid Battery Recharging
NOTE
Before performing maintenance or
recharging the lead-acid battery, turn
off all accessories and stop the EV
system.
To disconnect the lead-acid battery,
remove the negative lead first. Install
it last when connecting the lead-acid
battery.
Be sure to remove the caps before
recharging the lead-acid battery.
Do not quick-charge the lead-acid
battery.
If the lead-acid battery quickly
discharges because, for example, the
lights were left on too long with the
EV system off, slow-charge it as
required by lead-acid battery size
and charger capacity.
If the lead-acid battery gradually
discharges because of high electric
load while the vehicle is being used,
recharge it as required by lead-acid
battery size and charger capacity.
▼ Lead-acid Battery Replacement
Contact an Authorised Mazda Repairer
for lead-acid battery replacement.
6-24
Key Battery Replacement
▼ Key Battery Replacement
If the buttons on the transmitter are
inoperable and the operation indicator
light does not flash, the battery may be
dead.
Replace with a new battery before the
transmitter becomes unusable.
CAUTION
Make sure the battery is installed
correctly. Battery leakage could occur
if it is not installed correctly.
When replacing the battery, be
careful not to touch any of the
internal circuitry and electrical
terminals, bend the electrical
terminals, or get dirt in the
transmitter as the transmitter could
be damaged.
There is the danger of explosion if
the battery is not correctly replaced.
Dispose of used batteries according
to the following instructions.
Insulate the plus and minus
terminals of the battery using
cellophane or equivalent tape.
Never disassemble.
Never throw the battery into fire or
water.
Never deform or crush.
Replace only with the same type
battery (CR2032 or equivalent).