4-Pack Compatible Sentry Lite SCR52520 / UB645 6V Sealed Lead Acid Battery (4.5Ah / 4500mAh, F1 Terminal, AGM/SLA) — Includes 8 F1-to-F2 Adapters — UpStart Brand

Set of four UpStart replacement batteries compatible with Sentry Lite SCR52520 and UB645 Universal Sealed Lead Acid applications. Each battery is 6V with a capacity of 4.5Ah (4500mAh), built as an AGM sealed lead acid (SLA) unit and fitted with F1 terminals. The package contains 8 F1 to F2 terminal adapters to allow installation in devices that require F2 connections. Quantity: 4. Brand: UpStart Battery.