5-Pack UpStart Battery UB645 (PB28D Compatible) 6V 4.5Ah / 4500mAh SLA AGM — F1 Terminals + 10 F1 to F2 Terminal Adapters

Replacement bundle of five UpStart Battery UB645 units — direct fit for Light Alarms PB28D. Each battery is a 6V Universal Sealed Lead Acid (SLA) AGM cell rated at 4.5Ah (4500mAh) and fitted with F1 terminals. The kit includes 10 F1 to F2 terminal adapters so you can use these UB645 batteries in devices that require F2 connections. Ideal as a drop-in replacement wherever PB28D / UB645 batteries are specified. Brand: UpStart Battery.