Battery compartment is clean without corrosion. Both battery locking tabs are in place no tape needed.Front locking tab spring works and keeps the palmtop securely closed. Palmtop guides and catalog are dated 1994. Requires (2) AA batteries and (1) cr2032 back up battery not included. The item "Vintage HP 100LX Palmtop PC. With Hp 200lx / 100lx accessory guide/ catalog" is in sale since Friday, May 3, 2019. This item is in the category "Business & Industrial\Office\Office Equipment\Calculators". The seller is "ffrankiedela" and is located in Astoria, New York. This item can be shipped to United States.