12 Volt Battery Analysis

Press “START TEST” & wait for 10 seconds.
Once automatic test cycle is completed, your test results will be:

1. GREEN LIGHT = OK):
Battery capacity is good. May or may not be fully charged.
Determine state of charge by checking specific gravity (use hydrometer). If gravity is less than full charge, check for possible charging system trouble or electrical drain. Recharge battery to fully charged level.

2. GREEN + YELLOW LIGHT = OK BUT WEAK):
Review the load test result with the comparison chart on the tester cover to see if this battery is “OK” or not. If it is “OK”, go up to 1ST “OK” state. If it is not, go down to 3rd “WEAK” state.

3. YELLOW LIGHT = WEAK):
Battery capacity is unsatisfactory. Battery may be either: (1) defective or (2) partially discharged. To determine which, check specific gravity. If gravity is over 1.225, battery is considered defective. If gravity is under 1.225, recharge battery and re-test. If cell-to-cell gravity varies more than 0.025 (25 points), cell trouble may exist. If charging does not bring gravity to fully charged level, the battery is either sulfated or has lost active material.

4. RED LIGHT = BAD):
Battery may be defective (e.g. a bad cell).

NOTE: If pre-test battery voltage is below 12.3V, tester will not allow and should not perform the load test. Please fully charge battery and retest.