ArticleNo/ P/N: RPB-PMNN4440 Radiotype: DP3441/3661 1800mAh Li-ion battery for DP3441/DP3661 , NON-IMPRES Li-ion, 1800mAh for DP3441/DP3661 with panasonic cells. Physical size: W15xH95xL55. Operating temperature -20° C to +60°C. Silver Plated Contacts. The battery fits the beltclip PMLN7559A. IP54 Price request