Energizer Ultimate Lithium 1.5V AA Batteries (FR06) - 4 Pack

Four AA lithium cells in one pack, each running at 1.5V and carrying the code FR06. That code is worth knowing before you buy: the F marks a primary lithium chemistry, and the R06 is the ordinary round AA case size you already have in the drawer, so these drop into anything built for a standard AA cell with no adaptor and no voltage mismatch to think about. The retail pack prints a 25 year shelf life, and also states that the steel used in the cells includes up to 10 per cent recycled content.

AA is the commonest cell size in the house, which makes a four pack the useful unit for the things you would rather not open up again soon: wall clocks, remote controls, wireless keyboards and mice, a torch kept in the car or the hall cupboard, garden and doorway sensors, and camera flash units. Because the pack quotes such a long span on the shelf, these also suit kit that sits idle for months between uses, and spares tucked into a toolbox, a caravan or a first aid kit. Four cells covers a pair of two cell devices or one four cell device outright.

There is no charging these: the FR06 code denotes a single use cell, so a spent one goes to a battery recycling point rather than into a charging bay. Change the whole set together rather than topping up one cell at a time. This listing is sold as a pack of four and ordered in multiples of twelve packs, which suits a workshop, a holiday let or a shop counter more than a single purchase. We also stock Energizer AAA, C, D and 9V alkaline cells, coin cells, and a charger supplied with AA rechargeables.

Will these fit anything that takes an ordinary AA battery?

Yes. FR06 is the same physical AA size as a standard alkaline AA and runs at the same 1.5V, so it fits the same compartments.

Can I recharge them?

No. The FR06 code denotes a primary, single use lithium cell, so it goes to a battery recycling point when spent rather than into a charger.

How long can I keep a pack before I need to use it?

The retail pack prints a 25 year shelf life, which is why these are often bought as spares for emergency kit and seldom used devices.

What is the difference between FR06 and LR6?

Both are AA cells at 1.5V. LR6 names an alkaline cell and FR06 names a lithium one, so check which code your device documentation quotes.

How many cells do I receive, and how much must I order?

Each pack holds four cells. The minimum order is twelve packs, sold in multiples of twelve, giving forty eight cells in total.

Can I mix these with part used cells in the same device?

Better not to. Fit a full set of matching cells at the same time so every cell in the device starts and finishes together.