Description: Weve all done it before, you power up your model with a battery that you were certain was fully charged, but suddenly your model goes into LVC shortly after take-off, forcing you to make an emergency landing. Its very easy to lose track of which battery packs are charged & which arent when you bring a box full of them to the field.- This handy accessory sticks on to your battery pack with double sided tape & stays firmly in place.- It features a sliding tab that simply & easily indicates whether or not your battery is charged. When you finish charging your pack, slide the tab to show the Green color (charged), when you take the battery out of your model after use, slide the tab to show the Red color (discharged). Dimensions: 25x 12x 3mm Weight: 0.3g Package Included:10x EV-PEAK Battery Charge Marker