Circuit/System Description

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.

Hybrid/EV Battery Cell Balancing

The EL-50332 Hybrid/EV Battery Service Tool is used to match the voltage level of a replacement battery section to the existing battery sections following a service event. The tool will charge or discharge the replacement section, as required, based on measured cell group voltage data. The EL-50332 requires feedback from the K114B Hybrid/EV Powertrain Control Module during the balancing process. Communication is through the K114B Hybrid/EV Powertrain Control Module 2 X3 connector and a low voltage interface harness provided with the EL-50332 Hybrid/EV Battery Service Tool. The charging and discharging is performed by direct connection via alligator clamps directly to the replacement battery section positive and negative terminals. To facilitate connection of the alligator clamps, always install a replacement section into the C4D Hybrid/EV Battery Section 4 or C4E Hybrid/EV Battery Section 5 location. Reposition the existing C4D or C4E battery section into the location of the battery section requiring replacement as applicable.