BP-MFJ-888 : 4.8v 1100mAh NiCd battery for MFJ-886, MFJ-888 $ 26.95 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart BP-MFJ-888: 4.8v 1100mAh NiCd battery for MFJ-886, MFJ-888 frequency counters. These re-charge with your stock MFJ charger.