I bought model T4X - (KH3157 on the back) about 2 years ago, its been brilliant. I recomended one to a friend recently and he bought one, there is a slight model ref. difference - T4X SE, and the colour is different but the LEDs etc are very similar. Unlike mine, when the battery is fully charged only one LED remains lit, the power on LED (item No. 1 in the booklet, a circle with a line poking out of it). Anyone out there got one of the latest ones and is this correct? The booklet I think suggests that it is, but it is badly worded / translated. My friend thinks it is faulty.