Excellent quality batteries for COMPAQ 15 Series. Irelandbattery.com specializes in laptop batteries. We store most all laptop batteries for all COMPAQ 15 Series. Each of our COMPAQ 15 Series laptop batteries uses Class A batteries which are certified to CE, FCC, ROHS, PSE, etc. Our products are safe and reliable, you can buy with confidence. The replacement battery part numbers and COMPAQ 15 Series laptop models are listed as below.