ACD221 Battery is Compatible with the following Digital Cameras:
Pentax Optio S4
Pentax Optio X
Pentax Optio S
Pentax Optio WP
Fujifilm Finepix F700
Fujifilm Finepix F402
Fujifilm Finepix F810
Pentax Optio S50i
Pentax Optio SV
Pentax Optio S40i
The high-capacity Power-2000
ACD-221 rechargeable Lithium-Ion battery is a replacement for Fuji NP-40 and
Pentax D-L18 Battery. It features Lithium technology, which ensures maximum
battery life and maximum power. It also features No Memory Effect that lets you
recharge partially drained batteries without reducing performance.