E8GE rechargeable batteries are a nickel metal hydride battery that can be recharged up to 1000 times using common rechargeable devices that come in AA 2100 mAh and AAA 800 mAh sizes.
E8GE 1000 AA and AAA rechargeable batteries come in two packs and are available from online sites such as Amazon or from the E8GE website itself for about $10 for the AA and $8 for the AAA size. E8GE 1000 AA batteries are 2100 mAh rated with 1.2 volts while the AAA batteries are 800 mAh rated with the same 1.2 volts.
Both batteries are nickel hydride batteries and are pre charged so are ready to use right out of the package without having to charge them. I have had the batteries for some time and have not had a problem charging or using them in a few different devices or during testing.
My testing of AA and AAA batteries uses both a constant load and changing load device with an on off timer circuit and relay to disconnect the one load using the timer. My test load device has changed a bit from the last time I tested batteries but only in the timer circuit that is now a professional circuit instead of my soldered circuit I made.
I am using a device that has a clock as the time load so I have some measure of how long the batteries last and on the same clock circuit I have a 100 ohms of load in series and 34 ohms in parallel to the clock. This creates a circuit that approximates the load of a digital camera running but not taking a picture or flash such as the LCD screen being on before taking a picture.
The other part of the circuit that is only on during the changing load and is much more of a load such as when you’re taking a picture and your camera is using its flash is a 3.3 ohm resistor. During the constant load test I had the 144 ohm load on and the clock and for the changing load test the timer circuit would switch the load from the clock and its 144 ohms to the higher load of 3.3 ohms.
While this does not exactly duplicate a digital camera it strikes a balance between the changing load of a digital camera and the timed results so you have some way to measure the batteries performance. The batteries did well and the E8GE batteries were the best out of the three varieties for both AA and AAA sizes.
The E8GE batteries lasted longer on both constant load and the changing load tests for a better performance for both the AA and the AAA batteries even when other batteries were higher in mAh’s. The battery term mAh is milli amp hours or the amount of amps the battery is able to hold when fully charged and is how batteries are compared against each other.
Both the AA and the AAA batteries I tested from E8GE against the Energizer, Duracell and La Crosse Technologies are all high rated ones so the results were a bit surprising. After running each set of four batteries in parallel through a constant load test and a changing load test and averaged out the results which are in the chart with this article.
The E8GE batteries lasted longer than the others from Energizer, Duracell and La Crosse which was a surprise as the E8GE batteries are a lower mAh rating. I have used the E8GE batteries in digital cameras, keyboards, wireless mice and a few other products I use daily and was very happy with the results of my day to day use.
The E8Ge batteries have a couple of technical features with both the pre charged and being designed for low self discharge which means just sitting around they will not discharge much. Self discharge is when a battery without being in a device will not discharge as much as more common batteries.
Low self discharge batteries are better for people who are going to be storing batteries often between uses and are just one more feature that makes the E8GE batteries stand out. My testing did show that the E8GE batteries lasted longer than three brands of higher ratings which just goes to show that the higher rating doesn’t always mean better.
I highly recommend the E8GE batteries, both AA and AAA, for those higher power demand devices in a package that comes pre charged and are the low self discharge batteries.