AEG UN 6.03 Informations techniques télécharger pdf (Page 139)

Practical A.E.G Upgrade 2006

Is slow charging always good for my battery?

How to safely charge a battery?

One major reason why slow charging is good is because it is less likely to

overheat the battery. However, very slow charging (those over a day) may also

not be as good.

Under moderate charging currents, the cadmium that is deposited inside the

battery pack are very small crystals. Given time, these crystals tend to coalesce

and form larger crystals. This is no good for the battery since it makes the

cadmium harder to dissolve during high current discharge (the battery is in high

current discharge stage when in use by the AEG), and can lead to high internal

resistance as well as voltage depression. Very slow charging is no good because

slow growth aids the formation of larger crystals.

Based on our experience, getting a battery pack fully charged in about 5~6

hours is the most ideal.

One common way to judge whether a battery is fully charged is through

calculating the output of the charger to match the capacity of the battery pack.

Another cheap way is to measure the battery temperature by hand. If you feel

that the battery temperature is rising steeply, full charge is almost reached. To

be accurate, stop charging when the temperature rises to 10 degrees C or so

above ambient.

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AEG UN 6.03 Informations techniques Page 139