Because these conventional NiMH batteries have very high self-discharge. One day after the full charge lose that 10-20% of its load. 10.000mAh minus 20% = 8.000mAh. After further month storage, the NiMH batteries lose another 20% to 50% charge. 8,000 mAh minus 50% = 4.000mAh. And each additional month it halved in extreme cases further. After one year of storage, the battery is usually almost completely empty.
In addition, you can not use all the capacity of conventional NiMH batteries, because the voltage drops in these batteries very quickly under a usable value. Under 1.1V many units shut down automatically and notify that the battery is empty. Often up to 50% energy in the NiMH battery remaining when a device switches off automatically. Also because the LSD-batteries have an enormous advantage, here the voltage drops below a critical value only when really little more energy in the LSD-battery is left.
-> This is also one of the reasons why LSD batteries hold less capacity much longer than conventional batteries with more capacity (similar to Energizer Advertise with the hare, running and running, when everyone else is already flat).
Unsuspecting buyers can often be dazzled by the high mAh number, if you but in a flashlight or radio rarely uses such batteries, it can happen that when the device is used time - the batteries are empty long.
Now's an example of a battery current LSD technology, eg Tensai TR-C8000 (8000mAh,). Self-discharge after 12 months maximum 20%. 8.000mAh - 20% = 6.400mAh. Mind you, after a year of not after a day like normal NiMH batteries.
Or you can take an alternative AA batteries from Sanyo Eneloop (since 2014 Panasonic) with 2000mAh and a "3xAA to 1xD parallel adapter", one comes on 6.000mAh. The Eneloop batteries and LSD were the first to be developed further. The 4th generation has a self-discharge rate of just 10% per annum. After 5 years of storage are losing only 30%! Of the 6.000mAh remain after 5 years storage therefore still 4.200mAh left. Under normal NiMH batteries with 10.000mAh would after a month in extreme cases only 4.000mAh left. So less than LSD batteries after 5 years.
A special feature of the newer batteries LSD is, as already mentioned, that they can keep the tension for a long time constant. This breaks only under 1.1V when the battery really has almost no more juice. With conventional fully charged 2700mAh NiMH or brand new alkaline batteries makes my old Kodak ZD710 digital camera just 10-20 photos before the "Battery empty" comes and the camera turns itself off. With the 2000mAh Eneloop or ReCyko + makes this digital camera but almost all 300 photos with flash! Only then comes the "Battery empty".
In addition, the new LSD batteries usually cost less than the batteries from the Stone Age. To recognize these are also the imprint "Ready 2 Use", because these are pre-charged by solar power and still charged when you buy are (clearly, 5 years may indeed be on the shelves, and then still have 70%), thus immediately as disposable batteries can be used. If you buy a Stone Age NiMH battery without "Ready 2 Use", these are usually only usable after previous charging at home. Only you have to these "dinosaurs" then after charging best use immediately before the energy dissipates. Do not store in a flashlight or radio, which one uses often ...
If someone does not want to do without because of the good support to Ansmann, the LSD batteries Ansmann takes to be sold under the name "maxE".
Who does not believe it because of the many positive reviews of blinded by the high mAh Number buyer can even read on the Internet. For instance, on Wikipedia for the term "rechargeable NiMH battery with low self-discharge" or "Eneloop" Search. The Eneloop 4th generation lose as I said only 10% in one year.
Amazon has here for their own LSD batteries a nice table in the product description below:
The table can be seen that with 1900mAh LSD batteries 514 photos with alkaline batteries only 117 photos are possible (with conventional NiMH batteries even less).
