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This image shows industrial battery units, specifically Exell brand high-rate lead-acid batteries. The visible battery displays manufacturer specifications including a nominal voltage of 12V and indicates a date of 6/19. Labels on the batteries include recharge dates (03/2020 visible on one unit), UL/CE certifications, and hazard warnings including lead (Pb) content indicators. The batteries appear to be installed in a rack or cabinet configuration with multiple units visible, featuring copper terminal connectors on top. Additional notation shows "BOOSTED 11/2019" on at least one unit, suggesting maintenance or servicing history. The image captures industrial equipment that appears to be part of a backup power or uninterruptible power supply (UPS) system, with the batteries arranged in a series configuration for higher voltage output.