Mazda 3 Service Manual: Battery Recharging [Mzr 2.0, Mzr 2.5]

Using GR8-1291:

(See GR8-1291 INSTANT TRAINING MODULE (VIDEO) .)

WARNING:

• Keep all flames away from the battery, otherwise evaporated gas from the battery fluid may catch fire and cause serious injury.

1. Remove the battery filler caps and check the water level. If necessary, add water to the appropriate level. Reinstall the caps.

2. Attach the large red clamp to the positive battery terminal and the large black clamp to the negative terminal.

3. Select the diagnostic icon in the Main Menu, then press the NEXT key.

4. Follow the on-screen instructions to input the appropriate information. Refer to the Mazda GR8-1291 Instruction Manual for more information.

5. The GR8-1291 will test and charge the battery. Before the diagnostic charging results are displayed, use the keypad on the Control Module to input the last 5 digits of the vehicle's VIN and press NEXT to continue.

6. After the charging is completed, the Mazda GR8-1291 will print out the diagnostic charging results and display one of the following results listed below. Review the results and follow the action step for the displayed result.

Without Using GR8-1291:

WARNING:

• Keep all flames away from the battery, otherwise evaporated gas from the battery fluid may catch fire and cause serious injury.

• Remove the battery filler caps when recharging to prevent battery deformation or damage.

CAUTION:

• Do not quick charge for more than 30 min. Otherwise, it will damage the battery.

1. Remove the battery and then place it in a pan of water.

2. Remove the battery filler caps.

3. Connect a battery charger to the battery and adjust the charging current as follows.

Battery slow charge current

• 50D20L (40): 4.0—5.0 A

• 55D23L (48): 4.5—5.5 A

• 75D23L (52): 5.0—6.0 A

Battery quick charge current [30 min]

• 50D20L (40): 25 A

• 55D23L (48): 30 A

• 75D23L (52): 35 A

4. After the battery is recharged, verify that the voltage is within the specification and remains at the same value for 1 h or more

after the recharging has been completed.

• If not within specification, replace the battery.

Standard voltage

• 12.4 V or more