Duracell Rechargeable AAA NiMH Batteries, MIGNON/HR03/DC2400 (4 Batteries)

Duracell DC2400B4N Rechargeable Batteries, NiMH, AAA Size, 4-Count Packages (Pack of 2)

PHOTOLAND WAS GREAT. FAST DELIVERY, AND I GIVE EM 6 STARS..

Rechargeables used to be annoying and hard to use, but not anymore. Its easy, and reusable. Use it if you can

I have begun to buy DuraCell over Energizer after having 4 of the latter go bad and refuse to charge after only about 20 cycles. In general NiMH are great, but they have some caveats people should know about.

1.) They don't hold a charge over long periods of time very well as their charge ebbs away just sitting around. So if you have something you really need to work on the rare occasion you use it, like a flashlight in the car, use Lithium(longest shelf-life) or Alkaline.

2.) NiMH only produce 1.2 volts, not the standard 1.5, so for a flashlight that uses 4 batteries it produces 80% of the voltage - 4.8 volts, not 6.0. LED lights in particular have voltage compensation circuits, but they use up a fair amount of energy, so unless your flashlight was designed for NiMH it will not be as bright and won't last as long as using Alkaline in most cases. What are your priorities?

3.) The greater a battery's capacity, (expressed in mAH, short for milli-Amp hours, where 1,000 mAH will provide 1 amp for 1 hour) the fewer recharge cycles you will get. Very high capacities require very thin and fragile materials. Again, what are your priorities?

4.) It still pays to charge NiMH batteries all the way up and then use them until they are completely dead before charging again. The Duracell charger I bought states explicitly that batteries may need to be charged and used 2-3 times before obtaining optimal performance. It gives them longer life and the ability to accept a fuller charge for life. It also "heals" batteries that have been habitually "topped off" and develop memory.

5.) 15 minute chargers are great if you really need the batteries fast, but even the 30 minute chargers really heat up the batteries, and that shortens their lifespan. In most cases it makes more sense to keep a spare set of batteries than to habitually flash charge them. I have also heard that when the charger indicates it's done, it's not. Leave them in another hour if you can. Leaving them in all the time tends to ruin them.

6.) NiMH really work well in applications where you will use up the entire battery's charge in less than a week, (or month at the outside) the application takes a lot of current/energy, and your use is habitual. They can also be a lot more environmentally friendly than throwing out tons of Alkaline batteries.

Duracell is the best battery out there, especially the rechargables. I would swap Duracell with Energizers in my mp3 players every other time I needed to charge my batteries. My last set out-lasted Energizers hands down.

Perfect for my Vtech portable phones. Has alot of reserve power for long conversations on speaker phone