4-Pack UpStart UB645 6V 4.5Ah (4500mAh) Sealed Lead Acid Battery — Compatible with Light Alarms 8600016, F1 Terminals, Includes 8 F1→F2 Adapters

Four replacement UB645 sealed lead acid batteries from UpStart Battery — designed as compatible replacements for Light Alarms 8600016. Each battery is 6V with a 4.5Ah (4500mAh) capacity, featuring F1 terminals and AGM/SLA construction. This kit contains 4 batteries and includes 8 F1 to F2 terminal adapters so you can fit devices requiring F2 connections. Ideal for emergency lighting and backup power applications where UB645-compatible performance is required.