Yes, they definitely are worth the money because I have found that they last twice to 3 times longer than your standard Duracell and other good alkaline batteries. The lithium battery last twice as long as alkaline batteries in my experiences.

In short, a lithium battery can be used as a high-performing alternative to a standard alkaline battery. However, the benefits come at a cost: Lithium is a more expensive technology, which means a higher price point.

Lithium batteries, as opposed to alkaline, are capable of giving off a strong energy surge after a long period of low discharge. This makes them ideal for fire alarms. Alkaline batteries provide good, long-term power, but they lose strength over time.

Today, Duracell manufactures two alkaline batteries: Optimum and Coppertop.

Alkaline batteries have a higher energy density and a longer shelf life – the time a battery can remain in storage without losing any of its capacity. Lastly, the Alkaline cells have an Extra Power Formula to maintain power for a longer period in high-drain devices.

The Energizer Ultimate Lithium Battery, which is the highest rated lithium battery by Consumer Reports (tested on AA batteries), is said to last up to nine times longer than other batteries in digital cameras which are known for being high drain devices.

ConsumerSearch ranked the Duracell Coppertop as the best single-use alkaline battery for longer-lasting performance over other tested brands. ConsumerSearch and user reviews indicate that Duracell alkaline batteries last longer than some rechargeable batteries, even when used in higher-drain devices.

Many of the NAPA batteries have received top ratings from companies such as Consumer Reports. The best value battery from NAPA is the Select 8438/78, and this is also one of the best batteries for cold weather.

AutoCraft is probably the most popular and overall best car battery brand, as recognized in many places in the USA. They offer three important lines of batteries, Gold, Silver and Economy.