12 Volt Battery Test

Special Tools Required

Image	Description/Tool Number
	Honda ED-18 Battery Tester (12 Volt) INBED18V3H
	Honda GR8 Battery Diagnostic Station (12 Volt) MTRGR81100P

*Available through the Honda Tool and Equipment Program 888-424-6857

1.	12 Volt Battery - Test

A 12 volt battery can explode if you do not follow the proper procedure, causing serious injury to anyone nearby.

Follow all procedures carefully and keep sparks and open flames away from the 12 volt battery.

Software Version

Make sure you have the latest software for the ED-18 and GR8.

To check the software version on the ED-18, do this:

Press the POWER button.

Read the version number on the screen. It should appear for about 3 seconds.

Or you can select: Language> Options> Info> Version. The version number will appear near the top of the screen.

Write down the version number, then call Midtronics at 800-776-1995 to verify you have the latest software version or check the official Honda website for the latest updates.

To check the software version on the GR8, do this:

Press the POWER button.

Read the version number on the screen. It should appear for about 5 seconds.

Or from the Main Menu, select: Options> Info> I Version. The version number will appear on the screen.

Write down the version number, then call Midtronics at 800-776-1995 to verify you have the latest software version, or check the official Honda website for the latest updates.

Using the ED-18 Battery Tester (12 Volt)

NOTE: For setup, customization, and other available features, refer to the ED-18 user's manual.

Connect the leads to the positive and negative terminals.

Use the arrow keys to select the Battery test and press ENTER and follow the prompts.

NOTE:

Make sure to enter the correct cold cranking ampere (CCA) rating of the 12 volt battery. You can find the CCA printed on the label on the top of the 12 volt battery. If the CCA rating is not entered correctly, the test result will not be accurate.

Make sure to select FLOODED for the 12 volt battery type.

Here are the four possible 12 volt battery conditions:

GOOD BATTERY: The 12 volt battery has at least 60 percent of its charge and required no action.

GR8 DIAGNOSTIC NEEDED: The battery voltage is below 60 percent of its state-of-charge, and the condition of the 12 volt battery is unknown. Use the GR8 to charge the 12 volt battery and properly diagnose it.

REPLACE BATTERY: The 12 volt battery condition is poor. Replace it.

BAD CELL: There is an internal problem with the 12 volt battery. Replace it.

Using the GR8 Battery Diagnostic Station (12 Volt)

NOTE:

For setup, customization, and other available features, refer to the GR8 user's manual.

On the GR8, you can select two modes: DEALER INVENTORY or CUSTOMER VEHICLE:

DEALER INVENTORY: Use this mode for vehicles in dealer inventory. The GR8 charges the 12 volt battery to 80 % of its state-of-charge. If the 12 volt battery condition is OK, the GR8 states the 12 volt battery is GOOD. If you leave the GR8 attached to the 12 volt battery, it changes to Top Off mode, and continues to charge the 12 volt battery until it is at 100 % of its state-of-charge.

CUSTOMER VEHICLE: In order to give a waiting customer quicker service, the GR8 charges the 12 volt battery to 60 % of its state-of-charge. If the 12 volt battery condition is OK, the GR8 states the 12 volt battery is GOOD. If you leave the GR8 attached to the 12 volt battery, it will enter Top Off mode, and continues to charge the 12 volt battery until it is at 100 % of its state-of-charge.

Connect the leads to the positive and negative terminal of the 12 volt battery.

Use the arrow keys to select Diagnostic, and follow the prompts.

NOTE:

Make sure to select FLOODED for the 12 volt battery type.

Here are the three possible 12 volt battery conditions:

GOOD BATTERY: The 12 volt battery state of health is good and state of charge is at least 60 %.

REPLACE BATTERY: The 12 volt battery condition is poor. Replace it.

BAD CELL: There is a problem with the 12 volt battery. Replace it.