Conductance Profiling and Reserve Capacity
Today’s batteries must stand up to more demand on their resources than ever before. Batteries are expected to support every vehicle option – from power windows and seats, to heated steering wheels and multimedia power supply – and still start the car.
Plus, in start‑stop vehicles, they’re required to start the car a lot more often.
- Conductance Profiling™ analyzes the battery’s reserve capacity capability
- Combined with our industry proven conductance technology and proprietary algorithms, Conductance Profiling allows the CPX-955 to determine the battery’s ability to support the vehicle’s auxiliary power requirements, generating a low Reserve Capacity warning when the battery’s RC degradation may affect overall vehicle performance.
Please see the video here below for a further explanation of “Cranking Health vs Reserve Capacity”
How does the CPX-955 Conductance Profiling test works?
If the battery passes the cranking (CCA) test, the CPX-955 starts the Conductance Profiling™ test, by applying a small discharge load of 10A for 60 seconds. A small fan will turn on.
CPX-955 Test results
The battery decision is based on both the Conductance test and the Conductance Profiling test, examining both the cranking and reserve capacity
So, even if the battery its cranking amps are within specification, the CPX-955 can still give a “Replace decision” if the battery its Reserve capacity is insufficient, to avoid a customer driving off with a battery that might fail.
Please also have a look at: Battery Test Results – Subaru EU CPX-955.
