The improvements introduced in the new firmware release, directly imported from the HV version, are the following:

1. In the previous firmware revision the voltage parameters was erroneous because in my charger the resistor R5, nominally 47KOhm was 55KOhm. For this reason if the schematic is strictly followed the voltage readout and all the relevant parameters should be erroneous. In this version the resistor values are correct and are moved in an assembler code separated section named "USER CUSTOMIZATION" for easier editing.The assembler file must be recompiled and the PIC reprogrammed in order to make effective the change of this parameter.
2. Another improvement possible is the setting of the maximum current when in "power supply" mode. This parameter is present in the "USER CUSTOMIZATION" section and is an integer representing the max amperes delivered to the load. The assembler file must be recompiled and the PIC reprogrammed in order to make effective the change of this parameter.
3. The buzzer tone frequency is another customizable constant. This parameter is present in the "USER CUSTOMIZATION" section and is useful when the charger must drive a buzzer with a "resonant" frequency different from 2KHz. The assembler file must be recompiled and the PIC reprogrammed in order to make effective the change of this parameter.
4. The buzzer tone at the end of the charge or discharge process has a fixed duration of about 20 seconds.
5. The firmware has a unique change in the setting of the cell number: This number can be from 1 to 19: see the Advanced Charger HV section to understand the limitation on the management of more than 7 cells.

This new version can be found on the "Files" area of this section, under the name "ADV_pic_hv.zip".