Well I have a story when it comes to this. I purchased This battery July 2020 for my diy build and they sent me a battery pack that was made from chai Battery Systems. Before even put in 24 hours of use on the battery it had stopped charging to 100% Earnd when I would ride my board and the battery drained it was completely dead at 30% capacity still remaining. Long story short around a year later I was fed up with the lack of range and performance I was getting earnd I decided to order another one which would be the proportion pack itself And even though it didn’t come with a charger I’m glad I did because literally that week is when the battery pack from chi battery systems went up in flames while I was riding on it. I wish it would’ve been in my mind to take some pictures, my main concern was getting my focbox out of the burning and closure. I don’t know what how many stars to write it up because I am in the process of building a new deck and new enclosure pretty much a whole new board due to the damage that the last pack caused. I couldn’t believe it actually caught on fire under me. Don’t get me wrong I like proportion boards but This whole ordeal has been so frustrating and If this new battery gives me any issues that I am just done with my DIY build. I feel like chi battery systems needs to be aware of this but I’ve got the battery through here so I don’t believe, certified customer to chi. With Everything I’ve said on here all the curveballs I’ve had with that battery this review would be longer than a Christmas list. I sure hope this new pack gives me different results. Yet I still need a charger as I don’t know if the charger to the previous one could have been the issue. As of now though I’m still in the process of building a new board so I’m in no rush for it.