Although it normally lasts longer than service warranty period, the old battery at some point goes stale, and each brand-new battery costs around 3000$. Do this for a couple of minutes, then open up the lids as you did previously and dump the components right into a plastic bucket. STEP https://reconditioning-battery-ch73837.blogdigy.com/h1-battery-reconditioning-epsom-salt-myth-or-truth-h1-53214462