Also as somebody else mentioned alkaline batteries are not ideal for digital cameras due to the way they discharge, being quite linear. In this guide, we’ll give a rundown of numerous AA battery types, material variants and performance guidelines. The downside is that rechargeable alkalines can’t handle a great many drain cycles before their capacity starts to drop quite quickly, so they may not be the best choice for devices you want to use every day. If you’re ever faced with a badly leaking, ruptured or exploded alkaline AA battery, the best procedure is to immediately and carefully wash all traces of ejected material off your skin.

KODAK Alkaline Batteries AA Size Pack (16), 10 Year Shelf KODAK Alkaline Batteries AA Size Pack (16), 10 Year Shelf

While other chemistry types are available, NiMH is almost certainly the commonest variant of rechargeable AA battery you’ll encounter today (the once widespread NiCd types are now increasingly viewed as somewhat obsolete, thanks to being both fairly low capacity and toxic). When trying to figure out which AA batteries last the longest, there’s no hard and fast answer; it’s something of a ‘how long is a piece of string? Importantly for the health of your valuable electronics, lithium AA batteries don’t leak over time, unlike many cheaper varieties. NiMH and lithium-ion AA/14500 cells can supply most of their capacity even when under a high current drain (0.and higher), unlike alkaline and zinc-chloride ("Heavy Duty"/"Super Heavy Duty") cells which drop to a small fraction of their low current capacity before even reaching 1 C.

KODAK Super Heavy Duty AA Power Type Zinc Disposable KODAK Super Heavy Duty AA Power Type Zinc Disposable

A Fujifilm digital one I got someone was exactly the same, but not 30 seconds, didn't last very long at all.

Once this has been done, any traces of this remaining lye material should be neutralised with a household acid such as vinegar or lemon juice - but only do so after removing as much material as possible with water, otherwise, an exothermic chemical reaction can occur, generating more heat. AA alkaline batteries are very much the ‘standard’ type, sold incredibly widely in all sorts of places, and are usable in almost any relatively low-powered consumer electronics device. In short, the reason alkaline batteries leak is that they’re continually self-discharging in tiny increments, even when not in use.

Batteries | Kodak Batteries | Kodak

This is better and safer for both the batteries themselves, and the long-term health of the devices they’re powering.However, the fact that this gas is being generated under pressure inside a sealed metal chamber means that, should a product malfunction or be placed in a situation it’s not equipped to handle, issues can occur. Lithium AA batteries are a solid choice for more robust shorter-term use in high-drain equipment such as digital cameras, or even better in low-drain devices that need to be powered on for very long periods of time.

AA – Kodak Batteries AA – Kodak Batteries

Common pack configurations include 4, 5, 6, 12 or 24 AA batteries assembled in series, in parallel, or in a combination of the two. Li-ion rechargeable batteries in both AA and AAA sizes (with voltage converting circuitry in even the small AAA casing) were available. Instead, what pure lithium chemistry offers in AA format is an especially powerful and very long-lasting cell type. Many battery types placed in the wrong charger may eventually leak or rupture, but Li-ion cells can ignite with shocking violence if mishandled badly enough.

Li-ion cells operate at significantly higher voltages than most AA battery types, and must never be placed in a charger designed for AA-type NiMH or alkaline batteries. The latter, usually abbreviated to ‘li-ion’, are the extensively rechargeable versions you often find built into mobile phones, laptops, drones, vaping devices, and a broad catalogue of other high-drain consumer electronics products. versions - almost anywhere you look, and more often than not they’ll work in most types of consumer electronic devices. as a fresh disposable alkaline AA cell, but with virtually no drop over the discharge cycle, unlike other disposable or rechargeable cells. The exact terminal voltage, capacity and practical discharge rates depend on cell chemistry; however, devices designed for AA cells will usually only take 1.