Electric lawn mowers --need work (Arcata)

1) Greenworks 12 amp 20-inch corded electric lawnmower w/ bag. Ordered new from Amazon last month. Was supposed to be new, but a used one came. Used it 30 minutes and and power fizzled out. Seems like it's in overall decent condition. Amazon gave me 100% refund without sending it back.
2) Older Craftsman corded electric lawn mower w/ bag. Well used for many years. One day while using I tossed it on its side to clean the grass away from the blade and after than it didn't have power. And the short in supply was tripping my circuit breaker. Motor didn't not seem hot at the time and definitely never smoked.

       
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