Go to the nearest Globe Business Center and have it check by them. If found defective, ask for a replacement or free repair. Dont forget to bring your proof of purchase.
Sometimes this happens to my pocket wi-fis too. It seems that the battery stops charging when it heats up and reaches a certain temperature. The solution would be to let it cool down (either by turning it off, putting it in front of a fan, or charging it in a cool room). This workaround works for me. I hope this helps.