takewell Battery Protection Cover for SRAM AXS/eTap Battery(4 PCS, 2 pcs * Blue + 2 pcs * Red. You can Use a Blue Cover for a Low Battery, and a Red Cover for a Fully Charged Battery.
- 4 Pcs battery covers for SRAM etap AXS battery.
- 2 pcs * Blue + 2 pcs * Red.
- Mark your battery level using color as a simple indicator: blue for full charge, red for empty.
- Material: Plastic