Sliding charged / discharged brand for batteries

Mark sliding charged / discharged for batteries. A very useful thing that can save a model by putting a discharged battery into the model thinking it is charged and flying, which can most likely happen if you have multiple battery packs. This sliding mark is glued to the battery thanks to the double-sided adhesive tape, which is already glued on one side and you remove the cover foil from the other side and glue it to the battery so that it does not interfere with the model. There are three possible ways of identifying whether the battery is charged (green), or whether the battery is half full, (green-red), or the battery is low (red). You can easily move the slider on the marker to one side or the other.