A continuous red light means it's charging, and a continuous green light indicates that the battery is fully charged. However, the charger also tells you if something is wrong, and considering ...

Its red and green LED lights will let you know the ... If you're more interested in maintaining a fully charged battery, a low-amp maintainer will likely do a good job. This may sound trivial ...

The Xbox controller battery lasts 30 to 40 hours of gameplay when fully charged ... once the batteries have reached full charge and will display a green glow indicating a full charge.