Great Planes Triton Jr. Charger - GPMM3152 - Manual (Page 4)

• NEVER place the charger or battery on a flammable surface or near a flammable object while in use. Keep away from
carpets, cluttered workbenches, etc.
• NEVER overcharge batteries as permanent damage could result. Do not use a charge or discharge current rate which
exceeds the safe level of the battery. Do not attempt to charge or discharge a battery if it is hot.
• ALWAYS disconnect from power source when not in use.
• ALWAYS keep out of reach of children.
• ALWAYS connect the charge lead to the charger before connecting the battery to the lead. And ALWAYS disconnect the
battery from the charge lead BEFORE disconnecting the charge lead from the charger. Otherwise, if the ends of the charge
lead touch each other while the battery is still connected it will cause a severe and dangerous short-circuit condition.
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Amps (A): The unit of measure for charge or discharge 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). Or, to convert mA to amps, divide the mA number by 1000. So 25mA is the same as 0.025A (25
divided by 1000).
Capacity, milli-amp hours (mAh), and amp-hours (Ah): Charge energy stored by a battery is called capacity, which is
defined as how much current a battery can supply in 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 3200mAh
battery can deliver 3200mA (3.2A) of current for one hour (3200mA x 1hr = 3200mAh), etc. Very large batteries, such as lead-
acid field batteries, are usually rated in “Ah” or amp-hours. A “12V 7A” field battery can deliver 7 amps of current for one
hour (7A x 1hr = 7Ah).
“C” rating: Capacity is also referred to as the “C” rating. Some battery suppliers recommend charge and discharge currents
based on the battery’s “C” rating. A battery’s “1C” current value 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…a 3C current value of (3 x 600mA) 1800mA.
The 1C current value for a 3200mAh battery would be 3200mA (3.2A), etc.
GLOSSARY OF TERMS
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