$18.50 MSRP inc.GST

Redback – S 4908B – Battery 9 Volt – Lithium

Lasts up to 5 times longer than a normal alkaline! 
Due to the extra capacity these batteries are 1mm wider than a regular 9V 216 cell and may not fit into some devices. 

17.5L x 26.5W x 48.5H mm (Including terminals)