Originally Posted by mack_silent
Charger is marked with:
Input 120V 90mah
Output 8.4V 250mah
So using your equation (battery is 1200mah), I will charge it for 4-5 hours.
Keep in mind that a NiMah will hold about 80% of what it put into it. So for purposes of this calculation, multiply the end result by 1.2 -end result, 6 hours.