9v batteries are instantly recognisable with their distinctive rectangular shape and snap connectors. Available in a variety of types, 9v batteries offer reliable performance over an incredibly long period of time.
Inside most 9v volt batteries you’ll find six alkaline or carbon-zinc 1.5v power cells, which are connected in series in order to give the required power output. However, some cheap batteries only use five 1.5v cells.
The long life of 9v batteries makes them ideal for devices such as:
• Smoke detectors.
• Alarm clocks.
• Guitar effects pedals
Lithium 9v batteries have the longest life of all 9v batteries, lasting up to five times longer than alkaline batteries.
Rechargeable 9v batteries
9v batteries are also available in rechargeable form, so you can boost their long life even further. The best rechargeable 9v batteries can be charged hundreds of times, and don’t suffer from memory effect, which can hamper the performance of a battery.
Unlike many other types of battery, 9v batteries don’t lose their charge when not in use, so if you find a good deal on 9v batteries you can stock up with confidence.
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