Archive for the ‘Battery Comparison’ Category

Here is a table with results of 9V Alkaline batteries that we have tested so far, click on a header row to sort the list by it, click on the battery name to see the detailed test for the particular model of battery that we did. By default the test results are sorted with the highest capacity in mAh first, going down to the lowest capacity in the end.

Battery 0.05A Load Test (mAh) 0.05A Load Test (Wh)
9V Q-Lite Alkaline Battery 466 mAh 3.540 Wh
9V Maxell Alkaline Battery 432 mAh 3.251 Wh
9V GP Ultra Alkaline Battery 319 mAh 2.373 Wh
9V Sony Ultra Super Carbon Zinc Battery 151 mAh 0.998 Wh
9V Duracell Alkaline Battery 311 mAh 2.300 Wh
9V Toshiba Heavy Duty Carbon Zinc Battery 4 mAh 0.030 Wh
9V Duracell Procell Alkaline Battery 245 mAh 1.812 Wh
9V Fujicell Alkaline Battery 398 mAh 2.954 Wh
9V Varta High Energy Alkaline Battery 258 mAh 1.895 Wh
9V Energizer Industrial Alkaline Battery 380 mAh 2.816 Wh
9V Energizer Alkaline Battery 456 mAh 3.418 Wh
9V IKEA Alkalisk Alkaline Battery 492 mAh 3.744 Wh

We are going to be updating the list with results in the future as we are able to test more batteries of the same type, so that it would be easier to compare and choose the ones with best capacity for your use case, or just to help you get a better understanding on what to expect from a specific battery.

Time for another Eneloop battery comparison between different generations, namely the latest 5th generation Panasonic Eneloop Pro AA size NiMH batteries rated at 2500 mAh minimum capacity that we have just recently tested and the older 3rd gen 2550 mAh Sanyo Eneloop XX NiMH AA batteries that we have tested a couple of years ago. Specifications wise and performance wise both the older generation and the latest generation high-end Eneloop Pro/XX batteries do seem very similar to each other (like their smaller AAA version), but let us take a closer look at the results we got in our tests…


It seems that the newer Panasonic Eneloop Pro batteries manage to perform slightly better in terms of usable capacity in all of our tests at constant current loads of 0.2A, 0.5A, 1.0A and 2.0A, though the difference isn’t that big if you take a closer look at the numbers. It seems that the newer generation might be handling a bit better higher currents as the performance at 2.0A seems to be the only one with more significant difference between the 3rd generation Eneloop XX and the latest 5th generation Eneloop Pro AA NiMH batteries we have tested. Still, the good news is that the newer Panasonic Eneloop Pro batteries do manage to keep up with the expected good performance we are used to wit the Eneloop brand of rechargable batteries.

mAh Capacity – Eneloop XX – Eneloop Pro
— 0.2A load – 2452 mAh – 2472 mAh
— 0.5A load – 2423 mAh – 2453 mAh
— 1.0A load – 2385 mAh – 2388 mAh
— 2.0A load – 2200 mAh – 2322 mAh

Wh Capacity – Eneloop XX – Eneloop Pro
— 0.2A load – 3.096 Wh – 3.080 Wh
— 0.5A load – 2.999 Wh – 3.015 Wh
— 1.0A load – 2.856 Wh – 2.870 Wh
— 2.0A load – 2.436 Wh – 2.601 Wh

Since we’ve just tested the Panasonic Eneloop Pro AAA NiMH batteries and there are some claims that the IKEA LADDA AAA NiMH batteries that we have also tested recently are the same as the Eneloop (both are low self discharge and made in Japan with similar capacity) we could not pass the chance to compare them. IKEA’s LADDA brand is available at significantly lower prices compared to the top of the line Eneloop Pro batteries and even though IKEA does not make any bold claims about their batteries like Panasonic, the LADDA batteries could easily end up as a great and more affordable alternative…


Looking at the test results with discharge of both battery types with the same settings under different constant current loads we can see very similar performance and results, though there are some slight differences we can conclude that it is very highly likely that they are being made in the same place. The IKEA LADDA batteries managed to give us a bit higher capacity at lower discharge rates (0.1A and 0.2A), but fell behind a bit at higher loads (0.5A and 1.0A). Looking at the discharge curves we see a very similar pattern for both the Eneloop Pro and the IKEA LADDA batteries and that along with the results makes us think that they are essentially the same thing, but produced for different companies and sold under different brands. Of course there could be more variance in the LADDA batteries if they are allowed a wider tolerance in production for example as they are rated at 900 mAh and since IKEA sells a lot without much of marketing going for a specific products like their batteries it could apparently manage a better price for what seems to be the same thing.

mAh Capacity – IKEA LADDA – Eneloop Pro
— 0.1A load – 926 mAh – 903 mAh
— 0.2A load – 925 mAh – 901 mAh
— 0.5A load – 863 mAh – 888 mAh
— 1.0A load – 588 mAh – 634 mAh

Wh Capacity – IKEA LADDA – Eneloop Pro
— 0.1A load – 1.153 Wh – 1.131 Wh
— 0.2A load – 1.137 Wh – 1.103 Wh
— 0.5A load – 0.013 Wh – 1.051 Wh
— 1.0A load – 0.614 Wh – 0.658 Wh


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