Hi,
I am designing a new project where I have to parallel two battery packs, each using the bq4050 and I'm currently designing the interface between these two battery packs. Right now, I'm working on the pre-charge part. If both battery packs are in pre-charge, one of them will exit pre-charge before the other and I want to avoid this. My idea was to set the bq4050 to pre-charge using the pre-charge mosfet (PCHG_COMM=0) and disable the charge mosfet. I would than monitor the pre-charge flag (ChargingStatus.PV) of both packs and enable both charge mosfets only when both packs exit pre-charge. From my understanding, to have control of the charge mosfet, I have to enable manual FET control (ManufacturerAccess() 0x0022). This will remove FW control of the mosfets, therefore, I have to monitor if the battery is being charged, so if the user removes the battery packs from the charger, I will enable FW control of the mosfets again.
In this regards, are there any flags in the bq4050 which would show me if the battery pack is connected to a charger or not (basically if supply is given to the P+ and P- terminals)?
