Tiveco Makita 9000 9.6V Replacement Battery for Makita Power Tools (NM9621) High quality 9.6V 2100 mAh Ni-MH battery Replacement for Makita 9000 batteries Compatible with Makita: 4190DW/ 4390DW/ 5090DW/ 8402VDW/ DA391DW/ DA391D US Seller, pre-tested by manufacturer, product is CE certified 30-days money back / 1-year limited warranty