The Solaris Power Cells renewable solar energy storage solution replaces costly toxic, Lead Acid or Lithium-Ion batteries and stores electricity instantly. No more 6-8 hour recharging delays. Additionally, the Solaris PESA™ Storage Cell never requires maintenance and/or routine replacement like traditional batteries. MTBF rated at over 1 million Charge/Discharge Cycles, the Solaris SMART-CELL comes standard with a 15 year Limited Lifetime Warranty.