FPV racing drones or freestyle quadcopters require a lot of power. For this special requirement, Ovonic produces a 4s 650mah lipo battery with excellent discharge rate performance for 90mm to 150mm size FPV. The continuous 80C discharge of 650mah 4S offers lower internal resistance and minimal voltage sag.
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If you require 4s lipo batteries with other capacities, here are more choice for you to pick.
Excellent battery, I'm happy to get these. No voltage drop, never swell. Overall, better than any other battery on the market.
I highly recommend Ovonic batteries and can tell you that you should have no hesitation before and after purchasing it. Customer service was very responsive for the questions I have had before and after purchase. They stand behind their products.
Thank you Ovonic for such a great and quality LiPo battery for very affordable cost.