High Voltage Battery Test - Gen 1 Prius

High voltage battery testing is now available on first generation Prius, model years 2001-2003, a reliable means of determining battery health. 

The test is run using the car’s own operating paradigm; we do NOT use the Midtronics HYB (Hybrid Battery System Analyzer) for lack of proven performance in the field. 

Cost: $50
Time: 30 minutes

**We are still developing dynamic test methods for other hybrids.

First pic: Failing HV battery; note climbing Delta SOC (green) as SOC (blue) plummets.

Second pic:  Good battery (one of our rebuilds, tested before delivery); note Delta SOC (green) does not change as SOC (blue) goes down.  Max/Min block voltage levels do not diverge.

Posted by Carolyn Permalink Categories: Repair »