Global Battery Backup Market Size, Share and Report Analysis By Battery type (Lithium-ion batteries, Lead-acid batteries, Nickel-cadmium batteries and Others), By capacity ( 501 kWh), By end user (Residential, Commercial, Educational institutions, Industrial, Data centers, Telecommunications, Utilities and Others), By sales channel (OEM/direct sales, Distributors and dealers, System integrators, Online retail and Aftermarket), By Region and Companies - Industry Segment Outlook, Market Assessment, Competition Scenario, Trends and Forecast 2026-2035