5-Pack Compatible Elk Batteries ELK0640 / UB645 - UpStart 6V 4.5Ah (4500mAh) Sealed AGM SLA with F1 Terminals + 10 F1-to-F2 Adapters

Set of five UpStart replacement batteries compatible with Elk Batteries ELK0640 and intended as UB645 universal sealed lead-acid replacements. Each unit is a 6V sealed AGM (SLA) battery rated 4.5Ah (4500mAh) and fitted with F1 terminals. The bundle includes 10 F1 to F2 terminal adapters for added hookup flexibility. Maintenance-free, spill-proof sealed lead-acid construction for reliable backup power and easy installation.