Specifications are subject to change. See bluesea.com/P12 for current information.
Minimum Charge Temperature: The default is 0ºC
The lowest temperature of the sensor in which the charger will continue charging. If the temperature sensor falls below the minimum charge temperature, the charger will enter
standby mode, and cease to charge.
Temperature Parameters WARNING
Altering the default temperature parameters could cause serious property or personal damage. Contact your battery manufacturer to clarify the correct
temperature parameters for your specific batteries.
NOTE: Temperature parameters refer to the temperature measured at the temperature sensor, not the temperature of the charger. In this manual all temperatures
will be referenced in degrees in Celsius (°C). The user selectable range for battery temperature parameters is -20°C to 60°C. Ensure proper placement of battery
temperature sensor by referencing Step 8 on page 10
Maximum Charge Temperature: The default is 50ºC
The highest temperature of the sensor in which the charger will continue charging. If the temperature sensor increases above the maximum charge temperature, the charger will
enter standby mode, and cease to charge.
Battery Temperature Compensation (Tempco)
Battery temperature compensation is output voltage regulation based on battery temperature variances. Since batteries can see extreme temperature differences it is important
to regulate output voltage with temperature. A battery in a freezing environment should not be charged the same as a battery in a hot environment. The P12 Battery Charger
is set at a baseline of 25°C. Every degree variance from this baseline will result in a voltage variance on all outputs. For every degree above 25°C the charger will reduce all
output voltages by the value defined in Battery Tempco. For every degree below 25°C the charger will increase all output voltages by the value defined in Battery Tempco. For
example, with the default Battery Tempco set to -30mv/°C if the temperature sensor reads 26°C, then all output voltages will be reduced by .03V (30mv). If given the same
Battery Tempco and the temperature sensor reads 24°C, then all output voltages will be increased by .03V (30mv).
CAUTION
Charging batteries below 0°C can be potentially dangerous. Internal battery liquid can freeze and charging a frozen battery could cause serious property or
personal damage. Contact your battery manufacturer for minimum safe charging temperature for your batteries before altering.
CAUTION
Charging batteries above 50°C can be potentially dangerous. Contact your battery manufacturer for the maximum safe charging temperature for your
batteries before altering.
CAUTION
Altering the battery temperature compensation value incorrectly can cause adverse effects on your battery, by potentially reducing its life. Contact your
battery manufacturer to find out the specific temperature compensation parameters for your batteries.
15
Table F: Approximate End Absorb Amps
(1% of Ah Capacity)
P12
7521 AND 7522 BATTERY CHARGERS