Power-Sonic and Lucas batteries come in many designs, shapes, and sizes.Hence, to fit many UPS and alarm battery installations. Therefore, we want to help our customers purchase the correct battery. For this reason, we have many listings for such products as IBT BT4-6 replacement batteries.As a result, these batteries are offered online. Hence, with a next-working-day delivery. IBT BT 4 Ah-6 Volts replacement batteries.Naturally, to most of the mainland UK. As expected, our customers in the Yorkshire and Lancashire areas can collect their batteries. Thus, in regular working-day hours. Lastly, please call beforehand for availability.