i did a search on the Yuasa website and found the battery for my bike is a YB9L-A2 (Yumicron battery). My concern is that the battery thats in my bike at the moment is Yuasa YTX7L-BS "Maintenance Free Battery" (which is completely rooted at the moment). So which is the correct one for my bike? I have already bought a YB9L-A2 but its quite abit bigger and also its not 'maintenance free'. Should i take it back?