4-Pack UpStart Battery — Compatible with Surelite 4120EC / UB645, 6V 4.5Ah (4500mAh) SLA AGM with F1 Terminals + 8 F1-to-F2 Adapters

UpStart Battery 4-pack replacement set for Surelite 4120EC and UB645 universal sealed lead acid batteries. Each battery is 6V with a 4.5Ah (4500mAh) capacity, built as an AGM sealed lead acid (SLA) unit and equipped with F1 terminals. The package includes eight F1-to-F2 terminal adapters to fit devices that require F2 connections. Supplied by UpStart Battery Brand and intended as a direct compatible replacement for the Surelite 4120EC / UB645 models.