hey gang - I’ve seen the odyssey battery thrown about as a weight savings measure. My parts store battery has a few years on it so just curious about what works well as i consider its future. I had a few questions. Thank you for any input! 1) how long do these last 2) how do you secure them? Does the factory system work well? 3) are they still suitable for cold weather and daily driver abuse? 4) they save about 20ish lbs?