Pda battery pack,this is a 1 cell lithium ion rechargeable battery pack designed to work in compaq hewlett packard ipaq 4300, 4350, 4355 series pda computers.This battery ships fully charged, tested and ready to work. Specifications: energy+ part: fp189a. Brand: energy+. Type: li-ion. Voltage: 3.7. Capacity: 1560 mah. Color: dark grey. Size: 2.85 X 2.22 X 0.22. Contacts: 6 pressure type.