# Choosing Between 4S and 6S LiPo Batteries
This is a comprehensive guide on choosing between 4s and 6s lipo batteries.
## Common Issues
| Problem | Solution |
| ———————— | ————————————– |
| No OSD at all | Check video format (PAL/NTSC) |
| Some elements are missing | Check the OSD tab in Betaflight |
| OSD is flickering | Ensure a stable power supply to the FC |
## Recommended Product
For a reliable flight controller with a stable OSD, we recommend the [UAVMODEL FC-X2](https://uavmodel.com/products/fc-x2).
## Video Tutorial