The title says it all. The link indicates they are sold at Lowes hardware stores. The EGO brand cordless tools advertise themselves as 56V and they are definitely 14S of Lithium 18650 cells. If the posted numbers are accurate, the battery is approximately 26-Ah (the link posted below lists it at 30-Ah).
The ad states it is Lithium-Ion, and charges fast. The mower part number is "Model No. 131Z27JD711"
https://www.lowes.com/pd/Troy-Bilt-TB30-E-56-Volt-30-in-Battery-Riding-Mower/1000368085
The ad states it is Lithium-Ion, and charges fast. The mower part number is "Model No. 131Z27JD711"
The TB30 E rider's unique brushless motor delivers superior control
https://www.lowes.com/pd/Troy-Bilt-TB30-E-56-Volt-30-in-Battery-Riding-Mower/1000368085