バートルエアークラフトAC300リチウムイオンバッテリーセット(17V)。Amazon.com: EarthX ETX680C Lithium Iron Phosphate Battery。JST plug) 7.4V 600mAh 25C Li-ion Battery with Charger for XK。。。17V AC300 Li-ion Battery for AIRCRAFT, engineered by KYOCERA, includes charger and cable.- Voltage: 17V- Model: AC300 Li-ion Battery- Brand: AIRCRAFT- Included Accessories: Charger and cable- Engineering: Engineered by KYOCERA Industrial Tools購入してからワンシーズンのみ使用しました。Lithium Starter Battery for Experimental Aircraft | ETX680C