Hi Honda insight IMA bettery not charging in the 1st 2kilometers and when i first start the ignition it's producing a sulphur kind of smell but after driving for some kilometers it start charging and smell goes away

I would definitely have your battery tested and examined. A sulphur smell is usally caused by a faulty battery. It may also be why its not charging for the first 2 kilometers.

Hello, your IMA battery is not produced with sulfuric acid, and as a result does not gas in any way with odor as you have described. Sulfur smell can be vehicle exhaust related, or 12 volt engine battery related. What sound does your "IMA" make? And are you referring to the IMA system inside the CVT transmission, or a noise from the IMA battery? How can you prove the IMA is not charging? Have you had a proper diagnostic tool hooked up to determine the battery condition and the presence of any diagnostic trouble codes?