Albrecht DG-630 N Manual De Usuario página 7

Now place the assembled battery pack (with or without the attached
radio) in the stand-alone charger; the charging contacts at the bottom of
the battery must be in contact with the power supply contacts in the
stand-alone charger (we recommend to clean the contacts from time to
time with a dry cloth). The right-hand LED on the stand-alone charger
(CHARGE) lights up as soon as contact is made. Boost charge with
approx. 420mA starts.
Defective battery auto detection:
The stand-alone charger signals right at the beginning if your battery
pack contains defective batteries with an internal short circuit: the charge
LED does not light up, but flashes. Remove the battery and replace
defective cells with identical new cells. Individual battery cells can easily
be tested with a voltmeter: chargeable cells must supply a measurable
voltage of approx. 1.2V after being connected for a few seconds to the
stand-alone charger. Defective cells with internal short-circuit show no
voltage.
Charging and receiving at the same time?
Avoid simultaneous charging with the radio switched on, since the
charging time is considerably longer and on the other hand the safety
timer will turn off the boost charge to start trickle charge. This may
discharge the battery (depending on volume setting). However, removing
the radio from time to time and replacing it in the charger restarts the
boost charge and switches off after 90% battery capacity is detected or
after 3 hours.
This process can be repeated. Reliable information that your battery is
fully charged is thus for continuous charging and operation not possible.
The safety timer in your stand-alone charger prevents overcharging of a
battery, which is constantly removed and replaced, since Delta-U point
auto detection in this case is not always possible, especially if the radio
is repeatedly removed for short-term transmissions.
Automatic trickle charge:
At the end of the automatic charge the right-hand LED starts flashing.
This means, that the battery is charged to approx. 90% and charging
carries on with trickle charge. The battery can stay indefinitely in the
charger while the LED is flashing; this ensures maximum battery
capacity when removing the battery from the stand-alone charger.
Useful hints:
Former nickel-cadmium batteries were known for their memory effect,
which occurs considerably less often in NiMH batteries. Using them for a