External Voltage Regulator

The logic module and power module are not typically owner serviceable and if the VR in the power module either fails in the full charge mode or no charge at all mode, it is not easily replaceable. Also, if the wire from the logic module that triggers the power module to operate the VR has a poor connection, the system will either not charge at all or get stuck on full charge. So when you have charging problems and the wiring, power module, logic module or the VR itself is at fault, replacing the faulty components or wiring is often necessary, and expensive....but you do have an alternative repair path!