Thanks. Doesn't say anything about the motor except 40V. "CORE" is just some marketing BS label to sound technical and doesn't mean a thing to me.
pop,
I'd shop around before buying that model. I noticed this Greenworks mower. It has much more detail. Has an 80V system at the same Ah (4). Just one battery where the Rover comes with 2, but just uses one at a time from the way I understand the description. So at same C-rate, Greenworks model would have twice the power, depending on the motor. And on the motor, Rover is unknown. Could be a brushed PM with a wham slam thankyou mam switch control. The Greenworks specifies a brushless motor, therefore it has a controller and can limit starting current and overloads and likely thermal.
https://m.costco.com/Greenworks-80v,-21-inch-Steel-Deck-Mower.product.100353466.html
I'm in no way endorsing any product here and have no financial interest in any related company. Just saying.
I've gone to lithium powered string trimmers, bush trimmers, small chain saws (pole saw) and other small powered yard tools mainly because I hate engines so much. Most of these work well. I have not jumped into electric for my main two acres yet. So I'm interested in these mowers and willing to provide opinions if you do the legwork to find and link the specs.
Regards,
major
Only barely understanding DC,the CORE motor was all witchcraft to me. The equipment seems of high quality, and just having gained a blistered finger and a sprained wrist from my Stihl whipper snipper, the package has appeal. Any experiences,suitable sites or suggested impartial comments on this type of motor? 
