Sony 2500 mAh AA Rechargeable Nimh Batteries, 4-pack

 (264 customer reviews)

I have owned these for about four months. Mostly they are used in a DSLR camera.

I find that, when freshly charged, they are superb, giving lots of life and fast performance in the DSLR, which relies heavily on good battery power. They also charge fine, with no memory problems, in the Sony charger.

However, these batteries lose power when not in use. Most AAA rechargeables do, of course. But there are a new sort on the market that minimize the power drain when not in use. I have tried some, the eneloops.

They are just plain better than these Sony batteries. Eneloops fire right up and last longer even when they have not been in use for days or weeks. I find this makes a big difference because I don't have to recharge every time I start out a day with my camera.

Hope you find this helpful.

I've used these, Energizers, Duracells, etc. These have worked as well as any, and are often sold by Amazon at a very good price. Sony also makes a nice charger, the BCG-34HRMF4. When on sale, with 4 batteries, it's a great deal.

Be aware, though, that NiMH batteries all slowly lose their charge on the shelf, and will discharge in about a month or so, so don't use it for a device that sits around somewhere for long periods.

These are my first rechargeable batteries, so all I can say is that in comparison to alkaline, these are WAY better and longer losting. Alkalines stop working in digital cameras long before they are actually used up, because they can't supply the required current for high-demand devices. These Sonys last much more than 4x as long because alkalines only work for a few minutes. These Sonys maintain their voltage at a stable level. I am using them in an Olympus C-755 digital camera, and I charge them using the Sony BCG-34HE4 charger. I can't say exactly how many pictures you can take on one charge, because they last for so long I lose track. If you have a digital camera, you absolutely must use rechargeable Nimh batteries. Don't waste your money on the expensive "high-end" alkalines or non-rechargeable lithium, etc. Also, you are doing the environment a favor by not using toxic landfill filler.