Energizer AA Batteries, Ultimate Lithium, 4 Pack Double A Battery Pack

Product Information

Each LR6/AA cylindrical cell measures 51 millimetres (height) by 15 millimetres (diameter). Ultimate AA batteries are direct replacements for size codes AM3, E91, FR6, L91, KAA, MIGNON, MN1500, ND62S, R6, UM3 and 4006. It's not just disposable batteries that be thrown away like this. If you have a lithium-ion battery for a phone, computer, or other electronic device, it can go in the same bin. If it fits in your hand, it's probably fine to go in a shop's battery bin. Alkaline : The mainstream battery technology for high-drain devices. They’re cheap and very easy to find, and last much longer than the old zinc chloride batteries. Technical advances have also seen the major problems – a short shelf life and a propensity to leak – reduced or even fixed.

Leak-resistant and boasting a shelf life of as long as ten years at room temperature, Ultimate AA/LR6 Energizer cells deliver reliable power. They continue working in extreme heat and cold: the manufacturer-recommended temperature limits are -40°C (minimum) and 60 degrees Centigrade (maximum). Especially useful in portable appliances, the battery weight of 100 grammes is around 30 per cent less than typical alkaline cells. We’ve compared Energizer, Duracell and Panasonic batteries with supermarket own-brand batteries, such as Aldi, Morrisons, Lidl and Sainsbury's, to find the very best. Best Buy AA batteries on test Lithium : Lithium batteries work even better than alkalines. They last much longer, have an epic shelf life, don’t discharge as much power when not in use and can cope with extreme temperatures. While normal alkaline AAs struggle below 0°C, lithium batteries will operate down to -40°C. They can also be up to 9g lighter than the equivalent alkaline AA battery, which counts when you have something powered by four AAs. The only negative? They’re significantly more expensive. Our Best Buy AAA batteries last an hour and a half longer than the worst batteries on test in high-drain devices and four hours longer in medium-drain devices, like a games console. New long-lasting Energizer Ultimate 1.5V AA or LR6 batteries are capable of lasting up to eight times longer than standard equivalents. Renowned for durability, the Ultimate lithium range is a top choice for devices with occasional high current demands.No one else tests like Which? – our independent lab tests simulate the way you really use batteries, so you can be confident that our Best Buy AA batteries will power your devices for longer.

Similar applications in which lithium cells offer an advantage include personal grooming accessories, PIR sensors, high-tech flashlights and night-vision goggles. In particular, lithium cells work well in equipment that demands occasional short bursts of high current – not least in photography flash units, where their relatively light weight is also beneficial.

The best AA batteries you can buy in 2023

We’ve tested batteries from Aldi and Lidl – which can cost as little as 26p per battery – alongside big brands Duracell and Energizer to see how they match up. Only our tests reveal whether buying cheaper batteries will save you money and hassle. Any shop that sells a certain amount of batteries per year (and the threshold is low) is obliged to have a collection point for old batteries. From here, they will be recycled and the useful chemicals will be extracted. For high-drain devices, low-cost batteries may only be fractionally cheaper per hour of intensive use than some of our Best Buys. When the latter will last longer, is the extra hassle of buying, replacing and recycling them more often worth such a small saving? Best AA batteries for 2023 Rechargeable batteries can run for hundreds of cycles, meaning you don't have to buy and dispose of huge quantities of disposable batteries. This is much cheaper and it's better for the environment as well since battery disposal and recycling can be a carbon-intense process. In many cases, yes. rechargeables don’t deliver as much voltage as disposables (typically 1.25V rather than 1.5V), but they normally maintain the same level for longer and can just be recharged when they run dry. You pay more upfront for the batteries and the charger (if you need one), but you’ll recoup the difference within a couple of uses – and AA batteries cost so little to recharge that it’s barely worth thinking about. Factor in the clear environmental issues and it’s a no-brainer, although many local councils and some supermarkets now offer free recycling.

Shop around for AA and AAA batteries and the main types you’ll find are alkaline and lithium disposable batteries. The best AA batteries you can buy in 2023 1. Energizer Ultimate Lithium: The longest-lasting AA batteryIn fact, per hour, lithium batteries still cost more than good alkaline batteries. So they're good if a failing battery is a major inconvenience (like if you're travelling) but they aren't necessarily the cheapest per hour of use. When your batteries are out of juice, the best thing to do is to take them to your local shop and put them in the battery bin there.