10
NCORE MANUAL
VER. 2 REV. 1
Battery management module
The battery management module regulates the battery charging voltage and current and connects and disconnects the
battery according to the operating conditions to guarantee the energy required by the load.
It is not necessary to enter battery data or predetermined charge curves, since it is the NCore itself that calculates
automatically. It is enough to set the maximum charge current and the type of battery connected from the interface.
Charging phases
The module performs three charging phases that will be adapted to the type of battery chosen:
1.
First charging phase, at constant current
2.
Second charging phase, at constant voltage
3.
Third phase of charging, maintenance (deactivated in the case of lithium batteries)
Thermistor
The module has the possibility to connect an external temperature sensor (called thermistor) to monitor the temperature
of the batteries. This sensor is supplied with the battery management module.
A longer thermistor can be connected. We just have to make sure that the thermistor is compatible with the NCore curve
(10 KOhm, Beta coefficient 3380, NTC thermistor).
The thermistor is used to correct the battery charge curve, automatically compensating for temperature variation.
If the batteries reach a temperature outside the recommended limits, the use of the external thermistor protects the
batteries by suspending the charge.
It is possible not to use the external thermistor by selecting the use of the internal one from the interface. In this case, the
system considers that the batteries are set at 25 ° C, does not adapt the charging curve and does not interrupt charging in
case of overheating.
ATTENTION: The use of the internal thermistor, in the presence of high external temperature, could cause irreparable
damage to the batteries and to that which is in the vicinity.
Figure 1 – Battery management module
Handle for module extraction
Slots for air circulation
LEDs indicate basic information
relating to the operation of the
battery module
Battery connector with its polarity
External connector for thermistor
sensor
Battery management module
switch
Start button
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Содержание NCORE
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