Amazing, they have an app to diagnose and correct issues with their batteries via the Internet. I purchased 2 batteries, one was periodically throwing an alarm. Their tech stayed with me till he tracked down the problem. It was one cell delivering a low voltage signal. I had a new replacement battery so fast it made my head spin. Both batteries are performing as expected and I expect that they will do so for years.thanks

Put this in my 12 foot boat powering everything. I can run the brushless trolling motor for days with no charging. good.