Is the Acer Swift 3 SF314-511-51A3 actually EVO-certified? What is the battery life supposed to be?

I just received my SF314-511-51A3 model recently from Walmart and realized that the battery life was not as good as I expected to be. On the Acer product page for some reason a lower battery life is posted (up to 11h) compared to the other SF314-511 models (up to 16h) that actually showcase the EVO certified sticker in the product picture. Though, all of the SF314-511 products claim to have the EVO certification including the 51A3 per the item description. On the Walmart webpage, the battery life for the 51A3 was advertised to be up to 16h like the other models.