Bontrager ion200 shows battery at half life when fully charged

reset your light. charge with a 1Amp maximum charger the light.

It should works

When you say reset, do you mean remove the light from the network, then add it back? I've manually done this a few times already. The light will only charge with a 1A charger.

No you need to reset the light according to bontrager manual 

Thanks for the tip. It worked after I did the hard reset, as well as resetting the light network.

i reset the unit resetting the light network. re pair work for 2 charging and stick again at 3 bar !!!!! i did it from the start and work  again !!! any help ?

Bontrager have problems with fast charging. Have you use a higher 1A charger ?

i use 1A (i phone charger ) i will try next time in my pc usb