How to Extend Flight Time for Tinywhoop Batteries?

If you have a Lihv Check your Charger, try flying lower Rates and less heavy drons

my volt checker says max voltage but the drone I use is a meteor 65 o4 with the walksnail ascent lite instead and the battery I am using is 300 mah 1s

well any tinywhoops rn with 04s will have less flight time, the meteor65 04 is 28g which is 10g more than an analog tinywhoop so for long flight you probably want analog, also heres a section from oscarliang 

"BetaFPV recommends their LAVA 1S 550mAh LiHV batteries. You can also use the lighter, smaller 450mAh batteries, but flight time is considerably shorter. I am getting around 5 minutes of flight time when flying indoors with the 550mAh battery, and around 3.5 minutes with the 450mAh."

(https://oscarliang.com/betafpv-meteor75-pro-o4-whoop/#Battery-and-Flight-Time)

so maybe try some 550mah or 450mah batterys.