Admiral 2500mAh 4S 14.8V 30C LiPo Battery with EC3 Connector "6 Cell (6S) 22.2V" and the Edge 540 flies

and the Edge 540 flies well on the recommended Admiral 4S 2500 battery pushed all the way forward

For the nose retracts on the following Freewing aircraft:

7V 150mAh 25C Li-Po batteries

Z-Foam™ Material - Exclusive Z-Foam material makes it possible to create a design that’s lightweight and surprisingly durable

the higher the weight

Admiral 2500mAh 4S 14.8V 30C LiPo Battery with EC3 Connector "6 Cell (6S) 22.2V" and the Edge 540 fliesAdmiral 2500mAh 4S 14. 8V 30C LiPo Battery with EC3 Connector EPR25004E Motion RC gave this new generation of Admiral LiPo batteries a significant upgrade in mid 2017 with the goal of providing superior reliability and performance. Admiral LiPo battery packs feature reasonably low internal resistance, factory sorted and matched cells, and the power to help your planes perform their best. All of this comes with a significant boost in reliability. We've