The Pearstone CGR-D16 Lithium-Ion Battery (7.4V, 1900mAh) is a replacement for the Panasonic CGR-D16, CGR-D220, and the Hitachi DZ-BP16. Small and lightweight, Lithium-ion batteries can be charged or discharged at any time without developing memory effect. Don't wait for your one and only battery to charge before you can record again, carry a spare and keep on shooting.