Using the ED-18 Battery Tester

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 .

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

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.