For those who took advantage of SnowJoe end of season sales few months back, these use the same batteries.
Description from Amazon
POWERFUL: Perfect for small to medium lawns, the battery-powered mower's durable steel blade cuts a crisp 14" wide path with precision in a single pass
48V POWER: Included 2x 4. 0 Ah batteries offer up to 65 minutes of rechargeable runtime
ADJUSTABLE DECK: Tailor cutting height with 3-position manual height adjustment
Power Source Type: Battery Powered
WE'VE GOT YOU COVERED! : Your new lawn mower is backed by the Snow Joe + Sun Joe Customer Promise. We will warrant new, powered products for two years from the date of purchase. NO QUESTIONS ASKED. Contact Snow Joe + Sun Joe customer support at 1-866-766-9563 for further assistance.