Sorry for forgetting to mention the battery type. They are Nimh batteries.
I have a 3000 and a 5000 mAh. My charger only goes up to 5a, so I did 5 on my 5000 mAh battery but it looks like it only peaked at around 4.2, but it finished charging in about an hour or so; so I'm happy.
The 3000 battery charges in about the same amount of time at 3amps so I think it is safe to keep it there since I am not in a rush.
