B. The B battery SHR series high-power valve regulated sealed lead-acid battery is designed for high load and fast discharge applications,suitable for a wide range of operating temperatures from -20 ° C to 50 ° C. Maintenance free design,no need to add water,high safety,suitable for various applications such as UPS systems,fishing lights,power packs,and laboratory equipment. Customer feedback shows stable performance and is the preferred product in the industry,helping you move forward worry free.