Independently manufactured rechargers should be ok but it’s best to avoid very ‘fast chargers’, as these can shorten the lifespan of the battery and can cause problems from the batteries overheating and even leaking. AA battery chargers will also work for AAA batteries – as they are the same length between contacts. Most battery manufacturers only recommend using own-brand rechargers – and you can usually buy the charger and your AAA cells in a kit. Can I use any charging device for my rechargeable batteries? Unlike older NiCad (Nickel Cadmium) rechargeable batteries, NiMH batteries don’t suffer from a ‘memory effect’, so there’s no need to fully discharge them before recharging. Do I need to fully discharge NiMH batteries before recharging them? NiMH batteries deliver a lower 1.2V even when fully charged, so devices that have a built-in volt meter may display a lower reading. When new, alkaline batteries have a potential difference across their electrodes of 1.5V (volts).
#Aaa rechargeable batteries review 2011 full#
Why does the charge indicator in devices not show full when I insert fresh rechargeable batteries? Rechargeable NiMH batteries give a much more constant voltage throughout their discharge cycle, but it drops off rapidly at the end, when they run out of power. It’s pretty goon in Europe, but a relatively expensive option in the USA.įAQ Why do rechargeable batteries seem to suddenly run out of power?ĭisposable alkaline batteries have a fairly constant discharge rate while in use. And naturally, being a Duracell battery, it comes complete with that iconic copper top.
#Aaa rechargeable batteries review 2011 pro#
The Duracell Rechargeable AAA has an impressive capacity of 900mAh, almost matching the Panasonic ENELOOP PRO and easing ahead of the standard ENELOOP AAA.ĭuracell states that the battery can be recharged up to 400 times in its lifetime, and that’s backed up by a guarantee that lasts for up to 5 years or 10 years in different world regions.
See our full EBL rechargeable battery reviewĭuracell needs no introduction to battery buyers, being one of the most famous manufacturers in the world.
The total number of times they can recharged is rated at 1200, which exceeds that of some directly competing batteries. One downside, however, is that they’re only 20% charged before shipping, so require charging up before being used. Commonly sold in packs of eight, they’re very good value at the price and come complete with a storage case. The batteries also feature over-charge, over-discharge, over-voltage and short-circuit protection. The rugged build is based on a steel shell and advertised as completely leak-proof. Endurance is impressive not only for use in devices with a high current drain, but also in weathering the elements, with a working temperature range of -20 degrees to +60 degrees Celsius, or -4 to 140 degrees Fahrenheit. The latest edition of its NiMH AAA cell has an unusually high capacity of 1100mAh, for such a physically small battery. Only 20% charged when shipped (stated as being for the sake of safety)Ī famous name in the circles of power, EBL has been manufacturing rechargeable batteries and battery chargers for 25 years and counting.
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