3.7V Li-po Battery for SYMA S107 Original Factory Replacement Part S107G-19 Go to amazon.com Related posts Top 17 recommendation syma s107g 2022 Top recommendation for s107g battery Feature100% brand new.Voltage: 3. 7v.3. 7v li-po battery.Replacement part s107g-19.For rc toys and syma s107. Description* 3.7V 150mAh Li-Poly Lipo Battery Pack * For Syma RC Helicopter S107G-19