The small 205mAh Battery pack from lipo.de is a great choice. This has more punch, more endurance and is an all round a great battery. You will get more immersive flying with your Blade inductrix or other Micro aircrafts!
The MyLiPo 205mAh can also be used in any other model aircrafts that use 4-6g 1s lipos with a molex/micro-JST-1.25 plug.
Do not charge these packs directly on the Hitec X4 Micro charger! The connectors look similar, but they are not the same. The Hitec X4 Micro charger has 1.5mm plugs, but the batteries have 1.25mm pitch between the connector. Repeated charging of these batteries in the X4 Micro charger will damage the battery plug. If you want to use this charger, please use Micro-JST extensions to protect your batteries.