PTI Home Page Batteries, Battery, Battery Pack, Packs, Medical, Medical Mobility, Mobility, Infrared cameras, telecommunications, Wi-Fi, vibration testing, portable calibration equipment, PLC, security locks, military communications equipment, hotel door locks, R/C, R/C Racing, R/C Car, Hobby, Hobby Batteries, OEM, Specialized OEM, barcode scanners, devices, inventory control, material handling, tracking, Government, Military, defibrillators, patient monitoring devices, catheter cleaning equipment, catheter, monitoring, Medical, Barcode, UPC Code, infrared, Industries Established in 1985, PTI is a trusted custom battery pack manufacturer providing engineering support from concept through production. We also design for optimum manufacturability in an effort to minimize cost. We offer an industry leading life-time warranty on workmanship.