Hello, looking for advice and cheaper batteries to use between a brushless senton 3s and a brushless Kraton 4s. I had the 3s already with a smart tech 3s 5000mah 11.1v 50c. Just bought the krayton 2nd hand with no battery. Can I use a the 3s battery? Also the Kraton has 2 plugs jumped together does this mean I can run 2 batteries? I was told I can run up to a 100c in the senton