Recently I tried 1500mah 4s 100c Lipo battery for new brand RCHACKERS, so far these Batteries are Great… They are great for the Money I spent.Perfect fit for my SG 1603. Lots of power! I run RCHACKERS batteries on several of my vehicles and quads. They never disappoint!
https://rchackers.com/products/2pcs-rchackers-4s-1500mah-100c-14-8v-lipo-battery-with-xt60-plug
What other brands do you recommend?
4s gnb all the way. gnb 6s, not so much
looks great. I will try a pack or two. But the price of the 1550mah 4s is not an advantage over my current budget lipo battery， Ovonic 4s 1550mah. You can compare them.