Cordless Starters
I recommend the Sullivan starter and battery pack. They seem stronger in running and construction. They are also the most popular at our field.
I also prefer NiCads to lead acid batteries. I had trouble with a couple and switched to NiCads. A little more expensive but a lot less trouble.
I do strongly recommend that you buy the manufacturers matching battery for whatever starter you get. Mixing and matching doesn't always work because the motor is probably designed around a certain voltage and current capability.
Good Luck,
KW_Counter