Cameron sino 1200mAh Li-ion Rechargeable Battery PE2018AS 395780-001 398687-001 Replacement For HP iPAQ RX1900 RX1950 RX1955 Pocket PC 12 Months Warranty Replacement for the Following Battery Model/Part Numbers:PE2018AS, 395780-001, HSTNN-H09C-WL, 398687-001, 399858-001, 35H00063-00M Compatible with the Following Models:iPAQ RX1900, iPAQ RX1950, iPAQ RX1955 Capacity: 1200mAh 3.7V Li-ion Rechargeable Battery Pack. Cameron Sino Over 10 Years Battery Manufacturing Experience