I have the Thunder AC6 and this:

http://www.hobbycity.com/hobbycity/s...(USA_Warehouse)

Both work well for my needs because none of my batteries need to be charged at a rate higher than 5 amps. The Accucel-6 does not come with a power supply so will need to purchase one seperately in order to charge from an electrical outlet. There are a couple of inexpensive ones on their website as well.

If you get into larger batteries you will want a more powerful charger.