JCB Super Alkaline AAA Batteries (LR03) - 4 Pack

Four JCB Super Alkaline AAA cells arrive on a single blister card, each rated 1.5V. The pack prints three names for the same cell: AAA, the international code LR03, and MN2400, which you will still see in older appliance manuals. They all describe one size, so if a device asks for any of the three, this is the cell it takes. Alkaline is the standard chemistry for everyday household kit, holding its charge well in a drawer and giving steady voltage under a light, intermittent load. The pack also carries an up to 7x more power claim without naming what it is measured against, so read it as the maker's own benchmark.

AAA runs the small things: television and streaming remotes, wall clocks, computer mice and keyboards, digital thermometers, bike lights, pocket torches and children's toys. It suits anything drawing a modest current over weeks rather than something that pulls hard in short bursts. The pack notes up to 400 photos from a set in a compact camera, which gives a rough sense of the capacity on offer. For kit in constant daily use, a rechargeable cell works out cheaper across a year; alkalines are for the devices you fit and forget about until they stop.

Fit all four cells together rather than mixing a fresh one with a part-used one, and keep the same chemistry in a device, because cells in series discharge unevenly and the weakest limits the set. Take them out of anything being stored for a season. The manufacturer prints no shelf life on this pack, so we quote none. Sold as one pack of four cells, with a minimum order of ten packs in multiples of ten, which is forty cells in all. We stock JCB cells alongside this one in AA, AAA, AAAA, D, 9V and coin sizes.

My device asks for LR03 or MN2400. Is that the same as AAA?

Yes. AAA, LR03 and MN2400 are three names for one cell size, and all three are printed on this pack, so any device calling for one of them takes these.

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

One pack holds four cells. The minimum order is ten packs, sold in multiples of ten, so the smallest order gives you forty AAA cells in total.

Are these rechargeable?

No. These are single use alkaline cells and should not be put in a charger. If you want rechargeables, look for cells marked NiMH rather than alkaline.

Will they cope with a high drain device such as a games controller?

They will run one, but alkaline cells give their best value in low and moderate drain items like remotes, clocks and mice. Heavy constant use empties any alkaline quickly.

Can I mix one of these with a cell already in the device?

Better not to. Change all four together and keep the same chemistry throughout, because a part used cell in series drags down the fresh ones alongside it.