The PF-20R can be used 3 easy ways:

• Charge or Direct 12V Systems
  Marine, RV, Car Battery Maintenance, Field Communication Radios, Heavy Equipment, Golf Carts,
  Military Vehicles, Lighting or Security Systems

• Charge Wireless Electronics
  Charge your laptop, Satellite Phone, GPS, Cell Phone, PDA, etc and internal batteries

• Charge Nearly ANY Lithium, NiCad, or NiMH Batteries
  Recharge batteries for GPS, Portable Gaming Systems,
  Camcorders, Boomboxes, Camping Lanterns, just about anything!