Available in Monobloc or Dual Container, and 6V, 8V or 12V configuration, the Rolls Series 4000 boasts a wide variety of applications, including renewable energy and marine. Using the latest technology, this range has been designed to incorporate envelope separators and an increase liquid reserve, meaning your battery will run for longer before re-charging is necessary. With a thick plate design, built using the highest density active material, the Rolls Series 4000 promises greater rigidity and durability. Not only does this mean this range has a long life expectancy, it also has one of the longest warranty periods available, so you are guaranteed to get the most out of your battery. Perfect for those looking for a strong and reliable battery that wont let you down.