Maxell DC3781 Rechargeable Lithium ion Battery: Replaces Fuji NP-120, Pentax D-Li7, and Ricoh DB-43 Camera batteries Rechargeable digital camera battery great as replacement or backup Equivalent to NB-120, D-Li7, DB-43 Delivers dependable 1800-mAh capacity power 3.7-voltsLithium Ion Rechargeable Battery Free from memory effect