Review on Dutyone 5000MAh Replacement Battery IRobot by Brandon Pape

I do not recommend this product at all for the following reasons. 1) This item was advertised as having 5.0Wh, but it is much lighter than the original iRobot 3.0Wh battery. In order to increase the capacity by 1.67 times (= 5.0 / 3.0), the battery must not be lighter than the original 3.0Wh battery. The test also confirms that this battery does not last long. Please note that the life of the original battery is about two hours (when new) and about 80-90 minutes after years. If that's true, then the 5.0 Wh ad is fake. 2) There is no manufacturer name on the battery cell. I wonder how they can say in the ad that it's FCC approved (based on the seal of approval). Also, I'm wondering why Revain is listing this item for sale on the Revain website. Today is September 29th, 2020.