Battery back-up current
Vehicles with immobilizer system: 25-45 Ma
Vehicles without immobilizer system: 30 mA or less
5. Inspect and repair wiring harnesses and connectors of the fuse where the current has decreased.
BATTERY RECHARGING [LF]
1. Remove the battery and then place it in a pan of water.
2. Connect a battery charger to the battery and adjust the charging current as follows.
Battery slow charge current
46B24L (36): 3.5-4.5 A
Battery quick charge current [30 min.]
46B24L (36): 25 A
CAUTION:
Operating electrical loads while the back-up current is being
measured can damage the tester.
NOTE:
For vehicles with the immobilizer system, the system periodically
shifts synchronization of the security light flashing. Therefore, 45 mA
(0.1s) current is supplied when the security light is illuminated, and
25 mA (2s) current is supplied when the security light is not
illuminated. In addition, the measuring instrument, which shows the
average value, indicates around 30 mA.
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. It will damage the battery.
2007 Mazda MX-5 Miata Sport
2007 ELECTRICAL Charging System - MX-5 Miata
Microsoft
Thursday, July 09, 2009 3:07:38 PM
Page 5
© 2005 Mitchell Repair Information Company, LLC.