Safety Notes - GRAUPNER ULTRAMAT 5 Manual

Operating instructions
ULTRAMAT 5
Automatic rapid charger
for 4 ... 7 (8) nickel-cadmium or nickel-metal-hydride batteries
Congratulations on your choice of this modern, advanced, lightweight battery charger which is very easy to
operate. It has been designed to meet the special requirements of RC car, boat and aircraft modellers, with
an emphasis on high quality, ease of use and reliability.
Application
This charger may only be used for the purpose for which it was designed by the manufacturer, i.e. for
charging nickel-cadmium (NiCd) and nickel-metal-hydride (NiMH) batteries from a 12 V car battery. The
charger is not approved for any other type of usage. The unit is designed to be powered by a 12 V battery
fitted in a car with negative earth connections.

Safety notes

The charger must always be used with the original connecting leads. The charge outputs and connecting
leads must not be modified, extended or connected to each other in any way. The charge and power
cables must not be coiled up when the charger is in use.
Check the charger at regular intervals for damage to cables, connectors, case etc. If you find a fault or
damage, do not use the charger again.
Protect the charger from direct sunshine, dust, damp and rain.
Avoid short-circuits between the power lead plug, the charge socket and the car bodywork, as the unit is
not protected against these situations.
The charger is suitable only for use with a 12 V car battery. Before you connect it to the car battery be sure
to switch off the car's engine, and do not start it again while the ULTRAMAT 5 is still connected. The car
battery must not be connected to a car battery charger while the ULTRAMAT 5 is connected to it.
Only one pack to be charged may be connected to the charger at any one time.
The lead attached to the NC or NiMH pack must be no more than 25 cm long.
Caution: don't set up the charger and the pack to be charged on a car seat or similar. The charger and the
battery to be charged should be set up on a heat-resistant, non-inflammable surface before use. Keep all
inflammable and volatile materials well away from the charging area. Do not leave the charger running
unsupervised.
The following types of battery must not be connected to the charger:
-Faulty or damaged cells or packs.
-Batteries consisting of parallel-wired cells, mixtures of different cell types, mixtures of old and new cells,
or cells of different makes.
-Non-rechargeable batteries (dry cells). Caution: explosion hazard!
-Batteries which are not expressly stated by the manufacturer to be suitable for the high charge currents
which the ULTRAMAT 5 produces during the charge process.
-Packs which are already fully charged or hot, or only partially discharged.
-Batteries fitted with an integral charge or charge termination circuit.
-Batteries installed in a device, or which are electrically connected to other components.
The charger develops considerable heat in use. The aluminium fins on the case are designed to cool the
unit, and must not be covered or obstructed in any way. Set up the unit with space all round it so that heat
can dissipate freely. Allow the unit to cool down for a generous period after a rapid charge process.
Check before charging: are all connections in good condition? Are any of the contacts intermittent? Please
bear in mind that fast-charging NC packs can be hazardous.
Order No. 6419