I had a similar issue. Plugged G10T in guitar-in but after five minutes it stopped charging. But I found the problem after few minutes. DC POD Go adapter was only half way in. Somehow POD worked but probably it didn't have anough power to charge the transmitter. After plugging it correctly, transmitter charged without any problems. Stupid mistake but I had no idea that adapter can be plugged only "half-way" :-)) Hope it will help some of you.