BLH4211, Blade USB 1S LiPo Battery Charger This is a replacement Blade USB 1S LiPo Battery Charger, for use with the 70 S Helicopter. This charger is only intended for 1S, 3.7V 70 S LiPo battery (BLH4210). This product was added to our catalog on April 27, 2021

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