Buyers must verify that the equipment meets CE and RoHS certifications for electrical safety and environmental compliance. Key specs include Adjustable Current Output (to handle different Ah capacities), Thermal Protection to prevent overheating during the desulfation process, and Short-circuit/Reverse Polarity Protection. For industrial applications, look for a Discharge Testing Function integrated into the regenerator, as this allows for a 'before and after' capacity validation, ensuring the Economic Feasibility of the restoration.