CSB Battery Product Support Contact Sales Rep CSB Batteries are specially designed for high efficient discharge and long life application. It's characteristics are small volume, light weight and high discharge efficiency. It can be used for more than 260 cycles at 100% discharge in cycle service. Power Pros maintains a large stock of CSB batteries to ensure quick delivery and ready availability. Our sales technicians are always available to answer your questions before or after the purchase.   All 2 day and overnight orders must be placed no later than 1:00 PM EST. Otherwise, order will be shipped the following business day.