A lot closer to the dimensions is this one: https://www.alibaba.com/product-detail/High-capacity-105085-3-7V-5000mAh_60649477527.html
What do you mean by dimensions? HxWxD or battery size (mAh)?
If the latter - and based on IGG Wave Update #150 - then the XD models will have 4500mAh.
But maybe that has changed again hence an updated specs chart would be great.