5-Pack UB645 Replacement Battery for Emergi-lite SMX — 6V 4.5Ah (4500mAh) Sealed AGM SLA with F1 Terminals + 10 F1→F2 Adapters (UpStart Battery)

5-pack of UB645 universal replacement batteries compatible with Emergi-lite SMX emergency lighting. Each unit is a 6V, 4.5Ah (4500mAh) sealed lead-acid battery (AGM/SLA) fitted with F1 terminals. Includes 10 F1 to F2 terminal adapters to ensure compatibility with fixtures using F2 connectors. UpStart Battery brand — a direct replacement option for UB645 applications.