HITEC X2-400: DC/DC Dual Port Charger - Manual (Page 12)

10
NiMh & NiCd Delta Peak Sensitivity Setting
This feature sets the cutoff voltage for the automatic charge
termination of a NiMH and NiCd battery pack. The setting can
range from 5 to 20mV per cell, the default is 12mV for NiCd
batteries and 7mV for NiMH, the parameters are set individually
for NiCd and NiMh batteries. If the cutoff voltage is too high,
there is a danger of overcharging the battery, if it is too low there
is a possibility of premature charge termination. Refer to the
battery manufacturer’s specifications to determine the proper
setting. Once you have established the desired settings press
Start/Enter to confirm the setting then press INC to move on to
the next parameter.
Temperature Cutoff Setting
You can choose whether or not you want to use the automatic
temperature cut off when using the optional temperature
sensors. When turned on you can set the maximum temperature
at which the charger should allow the battery to reach during
charging. Once a battery reaches this temperature, the charge
or discharge process will be terminated to protect the battery.
Once you have established the desired settings press
Start/Enter to confirm the setting then press INC to move on to
the next parameter.
Waste Time Setting
When charge/discharge cycling a battery the battery will become
warm. You can set a time delay ranging from 0 to 60 minutes
after each charge/discharge process to allow the battery to cool
down before starting the next charge/discharge cycle. Once you
have established the desired settings press Start/Enter to
confirm the setting then press INC to move on to the next
parameter.
Safety Timer Setting
When the charge process starts, the integrated safety timer runs
simultaneously. If an error occurs or the charge termination
circuit cannot detect if the battery is fully charged, this setting will
terminate the charge process to prevent overcharging. Use the
Safety Timer Calculation below to determine the proper setting.
Safety Timer Setting Calculation
To determine the correct safety time setting when charging NiCd
or NiMH batteries, divide the capacity by the current, and then
divide the result by 11.9. Set the results of this calculation as the
number of minutes for the safety timer setting. If the charger
stops at this time threshold, about 140% of the capacity will have
been fed into the battery. Example: 2000mAh 2.0A
(2000/2.0=1000)/11.9=84 minutes.
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DEFAULT USER PREFERENCES SETUP