These S-4000 series L16-sized batteries are rated at 1,400 cycles to 50% depth of discharge. The S-4500 EX series batteries, S6 L16-EX and S2 L16-EX, are made with extra thick industrial-grade plates for longer cycle life. These are rated at 2,700 cycles to 50% depth of discharge. Shipping requirements and free shipping threshold quantities vary by region, so be sure to indicate your commercial ship-to address when ordering.
