Home > Consumer Reviews > SANYO eneloop 4 Pack AA NiMH Pre-Charged Rechargeable Batteries

The one attribute of the Sanyo Eneloop cell that doesn't get adequate billing, imho, is its low internal resistance. For most of my battery-powered appliances it doesn't matter which brand of cell I use. Then I bought a particular Kodak camera (Z812IS) that was loaded to the hilt with power-hungry features. To my great dismay, the only battery solution that would power the darn thing was (surprise, surprise) an expensive disposable lithium battery pack from Kodak. None of my NiMH cells, no matter how high their capacity, would power the camera for more than a few moments. Most would not even allow the camera to turn on. So the camera has been collecting dust in my sock drawer for more than a year.

Last week I got the bug to try the Eneloop cell when I read in Wikipedia that LSD NiMH cells have a lower internal resistance than regular NiMH, and that Sanyo was the innovator of this technology.

The cells arrived, I charged them to 100% capacity (with the Sanyo charger) and put them in the camera. Camera turned on. I went around the house taking pictures of everything. Camera performed perfectly. Next day I pulled the camera out (of the sock drawer) again and took a whole series of outdoor pictures. Everything worked perfectly. Next day, same story. It's a week later and I'm still on the original charge. For this particular camera, that's stunning! Capacity schimacity. What made all the difference here was low internal resistance. Thank goodness for Sanyo innovation!

I've had batteries from 'the big three' and decided to try these Sanyos.

I'm not sure if the shelf life is as good as the rayovacs, but they have a higher voltage.

I like them personally more than the energizer and duracell batteries; they seem to last longer, but it could be that these are new.

And, these are made in Japan, known for building good cars (at least the engines are good), electronics, and other products. Duracell and Energizer and Rayovac are made in china, home of lead based children's toys, defective automotive tires, unhealthy for dogs dog food, chemically enhanced toothpaste, and other 'quality' products.

My digital camera ate other batteries at an alarmingly high rate (as in 20 mins or less) -- these have been going strong for about a month already with no sign of being run down. Best purchase!

I will only buy these rechargeables from now on. They are the only ones powerful enough for my Canon 580 flash.

I have a Cannon PowerShot SX120 IS camera. Although it is a faboulous camera, it just eats up batteries. One pair of the Sanyo Eneloop precharged batteries lasted for over 5 days on my vacation. I was taking tons of pictures - 50+ per day and 1 short movie. I am REALLY impressed. The rechargables that came with my camera package only last for about 20 pictures. I'll never waste money purchasing anything other than the Sanyo Eneloop - assuming I'll ever need to purchase any more - they are still going strong. Good job, Sanyo!