Amazon.com : Replacement Battery with Charger for Black+Decker, 3700mAh Battery Compatible with HPB18-OPE/HPB18/A1718/FS18FL/FSB18/Firestorm + Power Tools, with 9.6V-18V Multiple Volt Output Battery Charger : Tools & Home Improvement
2 Packs 3.6AH HPB18 Replacement Battery Compatible with Black and Decker 18V Battery Ni-Mh HPB18 244760-00 A1718 FS18FL FSB18 Firestorm(Red) - Amazon.com
Amazon.com : BLACK+DECKER 20V MAX Battery, 1.5Ah Lithium Ion Battery, Extended Runtime, Compatible with Tools, Outdoor Equipment and 20V Vacuums(LBXR20) : Cordless Tool Battery Packs : Tools & Home Improvement
4.5Ah HPB18-OPE 18 Volt Battery or Charger for Black+Decker 18V HPB18 244760-00 | eBay
BLACK+DECKER 20V Lithium-Ion Battery Charger BDCAC202B - The Home Depot