But if you want to use these in electronics that are on for long periods or use a lot of energy, like a set of string lights or a video game controller, you may need to recharge these batteries frequently. (non-rechargeable) used to get over for me, in two-three days. That’s a lot of time for devices used infrequently or with minimal power, like TV remotes or flashlights. Limited-time deal: Duracell Rechargeable AA 2500mAh Batteries. If you aren’t using them immediately, they can maintain a storage charge for up to a year.Įach charge gives these batteries 5.5 to 8 hours of use. Other batteries might be cheaper, but I have never got the need to buy them since these are still going good for me (giving a week+ of battery for a single charge), in fact, I've never bought an AA battery after buying these, For reference, one pair of everyday eveready batteries (non-rechargeable) used to get over for me, in two-three days. These batteries are pre-charged and ready to use right out of the package and can be recharged about 1,000 times in their lifecycle, potentially replacing hundreds of single-use batteries.Įnergizer’s “Extended Life Composition” also promises up to five years of regular use before they need to be recycled. They’re also made from 4% recycled batteries, making them more environmentally friendly. This set of eight AA batteries from Energizer is an excellent household pack for keeping remotes, cameras, and kids’ toys up and running year-round. For ease, I’ve listed the link for four batteries.Runs down somewhat quickly between charges Latest dealsĭuracell sells these batteries in packs of four, eight, 12 or 16, although the price per battery is similar across pack sizes. That makes them suitable for high-drain use, in items such as powerful torches and remote control kids toys. The tested capacity was higher than the rated capacity every time, showing the quality of the Duracell Rechargeable AA 2500mAh. As you can see from the graph, the batteries held up well, with little variance between the starting and ending charges. I then charged and discharged the batteries 50 times, taking measurements every 10 cycles. Initially, the charge was 2795mAh, which is a good deal higher than the rated capacity of the batteries. Next, I measured the capacity of the batteries using a high-drain test (600mA +/-20%, with a cut-off voltage of 0.94V). Voltage drops as the batteries are emptied of charge, although the voltage drop is lower for rechargeable batteries than alkaline non-rechargeable units. The Duracell Rechargeable AA 2500mAh measured in at 1.29V, which is a good starting point. First, I measured the starting voltage, which should be at least 1.2V for NiMH batteries. To test the batteries, I used an Ansmann Energy XC3000 battery tester. To compare, the GP ReCyko Charge 10 batteries only last 250 cycles when fast-charged, although they’ll last for 700 cycles if slow-charged. Given the price and that these are standard rechargeable batteries, that’s a decent number. This makes these units suitable for charging and leaving in a drawer, and even for lower-drain use in devices such as remote controls and clocks.ĭuracell says that these batteries can last for 400 recharges. These are low self-discharge batteries, which means that they’ll keep up to 80% of their charge over 12 months. Guarantee: If not completely satisfied, call 1-80 (9AM-5PM) or. If you would like additional information on Duracell Rechargeable Batteries call 1-80 (9:00AM-5:00 PM E.S.T.). The Duracell Rechargeable AA 2500mAh performs well on all fronts, starting with a high overall capacity of 2500mAh. Correct disposal of this product: Please follow any local requirements to recycle used electronic appliances and rechargeable batteries. The increased demand for batteries can be traced largely to the rapid increase in use of small portable electronics, power tools, and other everyday items, as well as the increase in smart products, such as small and large appliances and automobiles. When it comes to standard NiMH rechargeable batteries, there are three things that you need to consider: the total number of charge cycles, their capacity, and how long they stay charged for. Rechargeable batteries may be removable or permanently attached to the device. Well priced and offering a decent number of recharge cycles for entry-level batteries, these are a great choice if you need power and convenience. The Energy Star certified Duracell Value Charger can charge up to four AA. You can recharge two or four batteries at a time and, with an LED Charge Status Indicator, youll know. when used in high drain devices, versus Alkaline. It recharges any AA and AAA NiMH battery from any brand. A foldable wall plug makes for easy portability and handy storage. Perhaps better known for its disposable batteries, the Duracell Rechargeable AA 2500mAh batteries show that the company can also turn its hand to rechargeables. Simple, effective and portable, the Value Charger can charge four AA or AAA rechargeable batteries at the same time.
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