| Beginning with your shop tools, it is best to establish if there are company standards for test equipment. Are there any formal training programs on the proper use of electrical test equipment? Does the equipment have a record of calibration, and are staff aware of any formal calibration program. Equipment that is not calibrated often gives false readings. Are the any shop charging stations? (i.e. out of vehicle battery charging) Often times, the only battery charging is a roll-a-round chargers for in vehicle when it would be best to have a central charging station in place.
What are the Electrical Testing Procedures used by your fleet maintenance staff? Are there posted charts showing the correct procedures apparent. Do your technicians have the necessary tools or skills to perform voltage drop test on the cranking and charging circuitry. (See TMC's RP-129) which discusses sequential testing of the cranking or charging systems?
Are batteries standardized in your fleet? i.e. (manufacturer, reserve capacity, or cold cranking amps) Is there a recharge program which uses battery adaptors for charging and testing to ensure accurate results that could prevent replacing batteries that could have been recharged? Some other areas to consider include establishing a formal battery warranty program with installation dates painted on the batteries and regular maintenance like corrosion prevention on the battery terminals.
Like batteries, starters & alternators should be standardized for each vehicle type, make and model. Are technicians testing the control circuits, measuring for voltage and current and is there a warranty program in place to handle defective units? | 
