1. Identification and Recording or Photographing Information:
- Vehicle make, engine displacement, number of cylinders
- Starter battery model and specifications to be tested.
- If both lead-acid batteries and lithium batteries are available, test, measure, and record data for both for comparison.
2. Use of a 1000A (or 600A for small cars and 200A for motorcycles) DC Clamp Ammeter:
- Note: Be concerned about the current direction on clamp to identify the discharge and charge current while reading the ammeter.
3. Voltage Measurement and Video Recording (Not Exceeding 1 Minute) at Four Key Moments:
- KEY OFF (5s): Acceptable value 13.4-13.6V
- KEY ON (5s): Acceptable value 13.2-13.4V
- STARTING (5-10s): Acceptable value not lower than 10V
- ENGINE RUNNING (30s): Acceptable value 13.8 – 14.8V (i.e., charging voltage from the alternator)
6. Current Measurement and Video Recording (Not Exceeding 1 Minute) at Four Key Moments:
- KEY OFF (5s): Must be 0A (or < 100mA if there is a smart key, GPS tracker, camera, etc., but a milliamp clamp meter must be used)
- KEY ON (5s): Allowable 2-5A. This is the current powering the control panel, ECU, oil opening solenoid, etc.
- STARTING (5-10s): Instantaneous current not exceeding 300A for BP125, 450A for BP140, and 600A for BP160
- ENGINE RUNNING (30s): In the range of 20 – 50A depending on the alternator’s charging capacity (large or small), and must gradually decrease to 0A when the battery is full.
- IF THE CHARGING CURRENT DOES NOT REACH 0A: Turn off and turn on the camera again until the current = 0A.