Battery Test

WARNING: This page is about a different car, the 2011 Acura TL, 2010 Acura TL, and 2009 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: A 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 battery

IMPORTANT: Before testing the battery and/or charging system, please view the following TSB regarding use of the ED-18™ Battery Tester. See SERVICE MANUAL UPDATE: ALTERNATOR TESTING .

Required Test Equipment

Honda Electrical System Analyzer (ED-18 Battery tester) T/N INBED18LLH

Ordering Information

To order the Electrical System Analyzer, go to the Honda Tool and Equipment catalog on the iN, or call 888-424-6857

Software Version

Make sure you have the latest software in the ED-18 To check the version on the do this

Press the POWER button
Select Reports, then press ENTER
Select Version, then press ENTER

If you do not have the correct version, call the Tools Hotline at 800-346-6327

IMPORTANT: Before testing the battery and/or charging system, please view the following TSB regarding use of the ED-18™ Battery Tester. See SERVICE MANUAL UPDATE: ALTERNATOR TESTING .

Using the ED-18 Battery Tester

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

Remove the bulkhead cover (see ENGINE COMPARTMENT REPLACEMENT )
Connect the leads to the positive and negative terminal of the battery
Use the arrow keys to select the battery test, then press enter, then follow the prompts
NOTE: Make sure to enter the correct cold cranking ampere rating of the battery If the number is not entered correctly, the result will not be accurate
Here are the five possible battery conditions

Good Battery The battery has at least 60 percent of its charge and requires no action
Good-Recharge The battery condition appears to be good, but charging is recommended and then retest See your battery charger's instructions to fully charge the battery, then recheck Do not charge the battery using the vehicle's alternator
Charge and Retest The battery condition is not known because its charge is too low Recharge the battery, then retest See your battery's instructions to fully charge the battery, then recheck Do not charge the battery using the vehicle's alternator
Replace Battery The battery condition is poor Replace it
Bad Cell There is a problem with the battery Replace it