Hi, TI expert.
I have technical inquiries during the BQ25171EVM test by a customer.
I am currently charging with the NiMH 2Cell Series using the BQ25171EVM.
For the BQ25171, it has been confirmed that the charge expires when the charge expiration condition reaches the OVP voltage, or when the time corresponding to the set timer is reached.
A typical NiMH battery recognizes -delta V and ends charging, but in the case of BQ25171, it seems that charging ends only by voltage or time.
The OVP condition is confirmed to be around 1.7V per cell.
In this case, we ask you if you don't need to worry about overcharging the NiMH cell.