Metapo High Capacity Battery for PS100, PS150, PS200, PS300 and other Compatible Power Scrubbers and Power Tools. 3.6V 2100mAH NIMH. 2-Pack LONG RUN TIME: Metapo 2100mAH super high capacity premium battery provides about 60% more running time than the 1300mAH low capacity battery from other sellers. NO MEMORY EFFECT: Unlike old technology NiCD battery, this NIMH battery has no memory effects so it will last longer. COMPATIBILITY: Works with Metapo PS100, PS150, PS200, PS300 and compatible power scrubbers (CUH, GBGS, Black & Decker Scumbuster, etc.) and power tools (Black and Decker, etc.). WORRY-FREE GUARANTEE! We are US based company. In case you are not completely satisfied with the product, just return it within 30 days for a full refund. WARRANTY: This product comes with 1 year limited warranty.