The cordless ACBe battery backpack vibrator system is ideal for the consolidation of thick interior concrete slabs with and without reinforcing steel and is an excellent choice for job sites that have strict guidelines for noise and emissions. The rechargeable battery provides zero emissions energy for an entire working day and the operator is not longer exposed to heat, exhaust fumes and engine noise. Modular system with all components sold separately: Converter backpack + Battery + Internal Vibrator (+ Charger)