The Flip N Blender features a 4000 mAH battery that allows you to make multiple drinks on a single charge. Battery life indicators will let you know when it’s time to recharge. How to use the Flip n Blender funnel delivery system first you must make space in the water bottle to allow your pre-workout post workout or protein powder to not overfill pour your powder into the funnel attach and screw on the blender motor onto the funnel flip upside down, push the power button twice blender motor will turn on and allow 15 to 40 seconds to mix the powder flip back over. Allow the mixture to flow back into the water bottle unattached the funnel and the blend is complete.