Energizer A11 Alkaline Batteries - 2 Pack

The A11 is one of those small specialist cells a household needs exactly once, usually on the morning a car key fob or a gate remote stops answering. This is Energizer's alkaline version of it, supplied two cells to a blister pack, and the pack states 6V. It is a cylinder rather than a coin cell, and it produces six volts from a body smaller than a standard AA, which is why it turns up in devices that need a decent push from very little space. Alkaline chemistry suits that job well, giving steady output and holding up in storage between long gaps in use.

Look for an A11 in keyless entry fobs, garage door and gate remotes, alarm system keyfobs, wireless doorbells, some laser pointers and a range of small hobby and test devices. The quickest way to be sure is to take the old cell out and read the side of it: A11 is the usual marking, and the same battery appears as E11A on some devices and packaging. It is not interchangeable with a coin cell such as an LR44, which is both a different shape and 1.5V, so a device designed around the A11 needs the A11.

Two cells come in each pack, which covers a remote that takes a pair or leaves you a spare for the one that does not. The listing is sold in tens, so a single order brings twenty cells, which makes sense for a workshop, a maintenance round or anyone who fits alarms and gate controls often enough to want stock on the shelf. Energizer does not print a shelf life figure on this pack. It sits with the other Energizer specialist cells we stock, including the A23 and A27 alkaline two packs, the LR44 and 4LR44 alkalines, and lithium coin cells such as the CR2032.

Which devices take an A11 battery?

A11 cells are common in car key fobs, garage and gate remotes, alarm keyfobs and wireless doorbells. Read the marking on the cell already fitted before you order.

Is A11 the same as E11A?

Yes, the two names describe the same 6V alkaline cell, and a device or its manual may print either one depending on the market it was sold in.

How many cells do I get, and how many packs must I buy?

Each pack holds two A11 cells. The minimum order on this listing is ten packs, in multiples of ten, so twenty cells in total.

Can these be recharged?

No. Alkaline cells are single use, so plan on replacing them rather than charging them, and keep a spare pack for anything you rely on daily.

Will a coin cell work instead?

No. The A11 is a 6V cylinder, while common coin cells such as the LR44 give 1.5V and sit in a completely different holder.

How long do they keep before use?

Energizer prints no shelf life figure on this pack. As a chemistry, alkaline cells hold their charge well when kept somewhere cool and dry.