NiMH chargers - Math formula - Battery capacity and Required Charging times

[Kiriakos GR]

There is a simple way to account for the charging times.

First, check the charger label to get the charging (output) current (120mA for AA cells).
Then Charging Time (hours) = Cell Capacity X 1.2 / Output Current

For example, for AA 2000mAh rechargeable battery
Charging Time (hours) = 2000mAh X 1.2 / 120mA = 20 (hours)
 

[Andrew-88]

What it does missing from the market, this is smart chargers them able to calculate End of Charge time in minutes.

Thanks mate !!