The LiPo balancer has not particular criticalities in the mounting process. The user should, as usual, start the assembly with the resistor and IC sockets, the the condensators and LED: the last elements are the transistor, the reference diode , the MOSFET and the power resistor. Particular care should be taken in the assembly of the transistor 2N2222 that is located just below the power resistor and should be in good thermal contact with the resistor ceramic body: it is a good choice to place also silicon grease (thermal conductive paste) on the top of the transistor. Particular care should be taken in the soldering process of the board pins: it is necessary to right align these pins inserting gently the pins in a socket and, at this point, soldering the board. No additional cooling should be provided to the MOSFET, in general it is a better choice to pass to a logic level one with lower internal resistance.













The base is connected to the charger and to the battery cells with an high current cable (the two contacts in the PCB bottom part, with the switch) and with the flat cable connected to each battery pole.
IMPORTANT: there are two wires that links a junction point between two batteries and the balancer, one for the negative pole of a battery one for the positive pole. The voltage in these wires is the same but the current path for the balancing process is different for the two cells.


















This photo shows the particular junction between the power resistor and the 2N2222 transistor that acts as temperature sensor.