Same quality. I bought mine on Amazon.ca Cheaper at the time than anywhere else. Also the Restart feature works great even on our large motors. I just tested it out today lol. Left the key on while releasing the steering lock. Battery died and not even the gauges would light up. Pressed the Restart button and she fired right up. Can't complain.Is there a difference in battery quality from Amazon or is it just the fact their amps are different?
Sometimes trying to get anything like that from the 'States can be a pain...especially these days