A “Customer – Do it Yourself” repair notice has been issued for all PCBA 5010-4 Battery Analyzers purchased before September 2018. Hardware versions 1, 2 and 3. Please download the pdf file here, Charge Pump Voltage Spike Repair.pdf and follow as instructed. It’s a simple repair requiring only the addition of a single small capacitor to the +38V auxiliary bus printed circuit board that will prevent the unit from possible serious damage once implemented.