Duratax Onyx 100 Instruction Manual - Page 2

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Disconnect the battery and remove input power from

the charger immediately if the charger becomes hot!!

• Do not attempt to charge any battery types other than NiCd or NiMH as permanent damage to the battery and

charger could result.

• Do not use automotive type battery chargers to power the charger.

• Do not allow water, moisture or foreign objects into the charger.

• Do not block air intake holes, which could cause the charger to overheat.

• Do not attempt to use batteries with more cells or total voltage than listed in the specifications.

• Do not leave the charger unattended while in use.

• Do not leave your battery inside your model while charging. Do not use the charger and battery inside a full-size

automobile or on a cluttered workbench, and avoid placing them on or near flammable surfaces and combustible

materials (including carpet, paper, plastic, vinyl, leather and wood).

• Do not overcharge batteries as permanent damage could result. Do not use a charge current that exceeds the

safe level of the battery.

• Do NOT connect the charger's AC and DC input connectors to any power source at the same time.

• Allow the charger or battery to cool down before reconnecting.

• Always disconnect from power source when not in use.

Amps (A): The unit of measure for charge current.

Milli-amps (mA): A unit of measure for current, being amps (A) multiplied by 1000 and listed as "mA". So 2.5A is the

same as 2500mA (2.5 x 1000). To convert mA to amps, divide the mA number by 1000. So 25mA is the same as

0.025A (25 divided by 1000).

Capacity and milli-amp hours (mAh): The amount of energy a battery can store is called its capacity, which is

defined as how much current a battery can supply constantly over one hour of time. Most hobby batteries are rated for

capacity in "mAh" or milli-amp hours. A 650mAh battery can deliver 650mA of current for one hour (650mA x 1hr =

650mAh). A 3100mAh battery can deliver 3100mA (3.2A) of current for one hour (3100mA x 1hr = 3100mAh), etc.

"C" rating: Capacity is also referred to as the "C" rating. Some battery suppliers recommend charge currents based on

the battery's "C" rating. A battery's "1C" current is the same number as the battery's rated capacity number, but noted

in mA or amps. A 600mAh battery has a 1C current value of 600mA, and a 3C current value of (3 x 600mA) 1800mA

or 1.8A. The 1C current value for a 3100mAh battery would be 3100mA (3.2A), etc.

INPUT POWER

AC Input: For indoor use, this charger includes a built-in switching AC power supply that delivers power by connecting the

AC power cord to a common 110V AC outlet. The AC power supply has a maximum power limitation that limits charge

current to 2 amps maximum, and 8-cell transmitter batteries might not reach 100% peak charge but should receive

enough energy for extended operation (monitor the power indicator on the transmitter during use). This is normal.

DC Input: This charger can be powered by a portable 12V DC power source for use at the track. Connect the DC power

cord's alligator clips directly to the output terminals on the 12V DC power source. Always match polarities (red lead to

red "+" terminal, black lead to black "–" terminal). To utilize the charger's absolute maximum power capabilities the DC

power source must be capable of delivering at least 6 amps while maintaining 12 volts DC. Larger batteries, such as

7-cell power packs or 8-cell transmitter packs, will charge more completely if the DC input voltage applied to the input

is greater than 13V.

WARNING! Never accidentally short together the positive (+) and negative (-) input connections when

connected to 12V DC power. Failure to do so could result in permanent damage to the power source

and the charger. Do not attempt to connect the charger to AC and DC inputs at the same time.

The charger will be on at all times when connected to input power. Disconnect the charger from input power when not in use.