Replacement UR-111, NB-111, NB-L5, AD-MS10BT batteries.
Rechargeable Walkman batteries to replace UR-111, NB-111, NB-L5, AD-MS10BT, BBB1129, BP1600R and others for Sharp, Kenwood, Kyocera, Yashica and other

Battery for Sharp WALKMAN, Sanyo, Kenwood, Kyocera, Yashica Camera, MD and MP3 players

Replaces batteries:
120-ky002-10-0
AD-MS10BT
B-8702
BBB1129
BP1600R
NB-L5
NB-111
S-L306X
SL306X
S-L306A
S-L306B
UR-111
CS-NB111

Battery Type: Li-ion
Battery Voltage: 3.60 V
Battery Capacity: 2400mAh
Battery Colour: BLACK
Compatible with original chargers and OEM equipment.

Fits Sharp WALKMAN, Sanyo, Kenwood, Kyocera Camera, MD and MP3 players

Kenwood Minidisc Players
Kenwood DMC-G7R
Denon DMP-R70
Pioneer PMD-R2
SHARP WALKMAN
MD-MS20D
Sharp MD-CS100,
Sharp MD-MS100,
Sharp MD-MS200,
Sharp MD-SS70
Sharp MD-MS200
Kyocera Samuria 2100DG
Yashica Samuria 2100G
and others

My battery has a different Ah, is it still OK to use yours?
The Ah (Amp Hour) Rating is the storage (or fuel) of the battery, the higher it is the longer the battery lasts between charges, bit like petrol in your car so a higher or lower one makes no different to the performance, just the length of time you can use the tool for between charges.