Rakuten Kobo is going to release a white version of the Kobo Clara Colour on September 23rd. One of the most compelling reasons to buy the new e-reader is the larger battery. The white body for the Kobo Clara Coloir is currently on pre-order for $159.00The black Kobo Clara Colour has a 1,500 mAh battery, which lasted only 3 weeks with moderate reading. The new white body Clara Colour has completed the manufacturing process. Back in June, the Kobo Clara BW was sold out for about a month, and Kobo had to make more of them.