Defective battery: the voltage trend shows a possible failure of the battery
Incorrect battery: the battery has a higher voltage than the charger (36V battery on a 24V charger).
In order to determine the kind of problem it is necessary to read the internal MGX data memory (see DATA MEMORY section). If the two
LEDs remain lit (connecting the battery) (PAN. 6), means an internal problem has occurred. Only the manufacturer can solve this problem.
CHARGE INTERRUPTION
Power failures charging and all LEDs go out (PAN. 5); when the power supply is resumed charging starts again at the point it was interrupt-
ed. If charging has to be interrupted for any reason, switch off the charger first disconnecting the mains supply and the cables connected
to the battery.
Never disconnect the battery if the charger is supplying current, as the resulting spark could ignite the gases produced by the battery and
cause an explosion.
For best charging, disconnect the battery only when the microprocessor indicates STOP (PAN. 3).
HOLDING
If you leave the MGX on the line and connected even during long periods of inactivity, it is possible to maintain 100% charge level. At the
end of a charge cycle (device indicating STOP – PAN. 3) the MGX goes into operation and supplies a small current in order to keep the
battery voltage at 2.25V/Cell. The length of this phase is unlimited. During the holding phase the display indicates STOP (PAN. 3).
DATA MEMORY
The internal microprocessor can store a remarkable quantity of information throughout the life of the MGX. This information can be read
only through the suitable terminal (MULTIPROGRAMMER) to be connected to the programming connector, which is accessible through a
slit on the bottom of the charger (see Fig. 1).
Contact the supplier for the purchase of a MULTIPROGRAMMER-CLIENT.
Reading this information helps detect the problems and their cause. It will be easily understood whether they are caused by a malfunc-
tion of the charger or the battery.
It is also possible to understand whether the problems are caused by the non-compliance of the user with the rules. Be particularly care-
ful when reading the user’s handbooks.
GENERAL RECOMMENDATIONS
Do not let the battery run down completely (maximum 80%): it will last longer.
Keep the battery contacts free of oxidation. Keep the charging area well ventilated.
MAINTENANCE
Keep the fan and the ventilation holes clean.
To clean the outside, use a damp cloth.
Use only original spare parts.
MGX Battery Chargers—User Guide
(page 2 of 2)
Battery Service Hub Ltd
www.batteryservicehub.co.uk
