FOR FULL SPEC'S LOOK HERE valuehobby
Now to be honest the manual is plenty thick and does a good job of covering what you need to know to operate the charger and explaining its features. It does have the common china translation problems with a word or 2 but most people should not have a problem understanding what its telling you . This charger does require a external power supply but they can be found pretty easy .Value hobby even sells this bundled with a power supply for those that do not wish to source there own .
The only thing I wish was different was that value hobby had included a cable with a TRX adapter for people with Traxxas systems to speed up there setup time .
To me this was the best $21 bucks I could have spent.
I would also like to say Value hobbies shipping charge of $3.99 was a pleasant surprise as was the 3 day delivery .