HITEC X1 AC Plus: Single Port AC/DC Chargers - Manual (Page 6)

Warnings and Safety Notes
LiPo LiIon LiFe NiCd NiMH Pb
Nominal Voltage 3.7V/cell 3.6V/cell 3.3V/cell 1.2V/cell 1.2V/cell 2.0V/cell
Max. Charge Voltage 4.2V/cell 4.1V/cell 3.6V/cell 1.5V/cell 1.5V/cell 2.46V/cell
Storage Voltage 3.8V/cell 3.7V/cell 3.3V/cell n/a n/a n/a
Min. Discharge Voltage 3.0-3.3V/cell 2.9-3.2V/cell 2.6-2.9V/cell 0.1-1.1V/cell 0.1-1.1V/cell 1.8V/cell
Standard Battery Parameters
WHEN ADJUSTING YOUR X1 CHARGING PARAMETERS, BE SURE YOU
SELECT THE PROPER BATTERY TYPE AND CELL VOLTAGE FOR THE
TYPE OF CELL YOU ARE CHARGING. CHARGING BATTERIES WITH THE
WRONG SETTINGS MAY CAUSE THE CELLS TO BURST, CATCH FIRE OR
EXPLODE.
Charging
Before charging your batteries, it is critical that you determine the maximum
allowable charge rate for your batteries. The X1 is capable of charging at high
rates that may not be suitable or safe for your particular batteries. For ex-
ample, Lithium cells are typically safe to charge at 1C, or the total mAh÷1000.
A 1200mAh battery would have a 1C charge rate of 1.2 amps. A 4200mAh
battery would have a 1C charge rate of 4.2 amps. Some manufacturers are
off ering Lithium cells that can be charged at greater than 1C but this should
ALWAYS be verifi ed before charging a Lithium battery at rates higher than 1C.
Voltage is just as critical as the charging amperage rate and this is determined
by the number of cells in series, or “S”. For example, a 3S LiPo is rated at 11.1
volts (“S” multiplied by a single LiPo cell with a nominal voltage of 3.7 volts
DC. 3 cells x 3.7 volts each equals 11.1 volts DC).
Connect the battery’s main leads to the charger output: red is positive and
black is negative. Keep in mind that the gauge or thickness of your charging
leads from the X1 to your battery must be of an acceptable current rating to
handle the applied charge current. For maximum safety and charging eff ec-
tiveness, always match or exceed the main battery lead rating when assem-
bling or selecting your charging leads. If you charge a battery at a high current
rate (amperage) with a charging lead not rated for the chosen amperage, the
wire could get hot, catch fi re, short out and/or potentially destroy your battery
and the charger. When in doubt, always use a higher gauge wire (lower AWG
number). It is common to see charging leads constructed of 14AWG, 16AWG or
18AWG wire.
Warning