... -Competitive prices,high quality 100%Brand New laptop battery replacement for HP DV2000 V3000 DV6000 series 6cell 47Wh No Trust ... HSTNN-IB42, HSTNN-OB31, HSTNN-OB42, NBP6A48A1 4. Compatible for: replacement for DV6400, DV6700/CT, DV6700t, DV6700z, DV6800, DV6900, DV2800t Artist ... to avoid frequent full discharging of the battery. 2.For battery meter calibration, periodically do a full battery discharge ...