EcoPower "Basher" 4S 100C Hard Case LiPo Battery w/EC5 (14.8V/5000mAh) Ready to Run the spring tension can be

the spring tension can be changed with the cover plate between low and high for each different spring type

and SLW compounds

Grid for hole layout to work with any wing mount

Extended arms constructed from extreme-duty cold weather compound

5m is equipped with SAFE® technology—and can be upgraded with SAFE Plus technology and a Landing Assist Sensor—to make learning to fly easier than ever before

EcoPower "Basher" 4S 100C Hard Case LiPo Battery w/EC5 (14.8V/5000mAh) Ready to Run the spring tension can beBasher Approved for 4S & 8S Use! This EcoPower 4S Hard Case LiPo Battery is your go to option when it's time pull the trigger wide open, light up the tires and fling some dirt! Sized for Arrma, Losi and more, this battery features a hard plastic exo skin that protects the inner cells from the abuse of bashing. The case also features wire slots designed to allow the leads to sit flat, in the event you stack two batteries together for 8S use. For Arrma