Important Buyers Note: Duracell "M3 ULTRA" is now to be known as simply "ULTRA" or "ULTRA POWER" and there is going to be a transitional period where M3 is no longer printed on the pack. Be assured that if you get a pack with simply "ULTRA" on the pack it is the very latest product. To confirm this please see the Duracell.co.uk website in Q&A section to confirm this.
When only the very best will do. The M3 Ultra range is Duracell's most powerful alkaline battery available. Please do not confuse Duracell M3 Ultra with lesser power Duracell "Plus" type these are significantly more expensive and offer much improved performance over the "Plus" type !
Duracell M3 Ultra batteries also have a very useful "Powercheck" feature built in. Please compare our price and see the great value that 7dayshop.com offers !
This 9V size battery is also known as MX1604 and 6LR61.