I want to make a battery pack that can make 7.5V at 3.0A.

[daffy1234]

CocaCola, do you think this would suffice? Click here. It's a bit pricy for my liking, but I found a few that are WAY cheaper...at the cost of a lower capacity. :/ What capacity do you think would fit 3A best?

 

[CocaCola]

That should get you about 2-2½ hours run time @ 3A drain...

And you should shop around, there is a lot of price difference in prices if you shop around, but there is also a lot of 'overrated' specs to be found... You have to find a balance between cost and rated specs, probably best to consult some RC forums and get recommendations on sources and brands of Lipo packs, or find reviews of those you choose...

 

[daffy1234]

That should get you about 2-2½ hours run time @ 3A drain...

And you should shop around, there is a lot of price difference in prices if you shop around, but there is also a lot of 'overrated' specs to be found... You have to find a balance between cost and rated specs, probably best to consult some RC forums and get recommendations on sources and brands of Lipo packs, or find reviews of those you choose...

I'll look around before buying then. Thanks for the tips.