I write today a review about the standard charger for eneloop batteries.
This charger has been torn in many forums often, there are wild (unjustified) rulings, wrongly in my opinion!
The charger is very simple, the batteries are inserted, you have nothing further notice, it will be briefly reviewed after plugging where batteries were inserted, and begins to load. Are the LEDs OFF, you can disconnect the charger from the wall outlet and use the battery again. Actually really simple!
The downside is the charging time because the batteries are relatively slow but loaded gently!
And at this point I will make the transition to the modern, mostly "microprocessor-controlled" more expensive chargers.
The dilemma begins with the fast charging. The batteries are charged within a few hours with high currents, and a higher voltage. This high voltage is to be necessary to ever higher currents flow in the battery.
It is important to pays attention that the battery is not overcharged. Is the battery itself, the final voltage achieved is the chemical process, "saved" the energy is completed. And the rest of the energy is pumped into the battery is converted to heat. This does the battery not really hurt, because the battery may be a little warm already. (By the getting warm is "destroyed" the excess voltage.)
However, in the fast charging with increased voltage quasi a "lever" attached to force the battery for fast charging. And here's the magic with the technical effort! To identify the point at which the battery is full, is a science in itself. If the load circuit is detected early, the battery is not fully charged. Andersrum gets the battery maybe a little damage.
So all is not so easy, and the possibility of quick charge is paid to the risk that the battery is either not fully charged, or gets a little quirks.
Quite different the cheap-looking standard charger, which goes to plants that take batteries so gently no harm, but "forever" long need to charge the battery. Maintenance overnight, or at noon precisely.
I was at the beginning but very convinced rid the seemingly poor loaders, and quick to create me a super-duper fast charger. But after extensive reading, I strayed away again. He is gentle with my batteries in order, and I just to make enough battery stockpiled spontaneously what. In addition, these batteries charge keep very well. -> Quite clear recommendation!