Fit Modelr for: GR IV,R4Part Number for:DB-120Notice Before PurchaseBe carefully check the model number of your device and the part number of your original Battery to see if this Battery is compatible with your device.A new battery will achieve its best performance after 2 or 3 complete cycles of charge , discharge.When you install it, be sure the connector has been properly connected to your device.Do not use low quality third-party adapter charger to charge your device, that will shorten the battery's life. [Battery Compatible] Replacement Battery for GR IV,R4 . All batteries are Certificated with ISO9001. [ Battery Specifications]-Capacity： 1850mAh,Voltage:15.6V,Dimensions:,Weight:g, [New battery ]There are many installation videos available on the Internet, which are easy to install. New fully decoded chip works just like the original [Battery High Quality] Our batteries are made to the exact specifications as same as the original battery. Every battery is with strict spec detection and use testing, ensure the safe and durable use of the battery Overcharge, over discharge, Replacement, over voltage and short circuit protection for better battery life. The package has shock-shock foam, transport a protection battery. [ battery] Email reply within 24 hours ASIN B0H6ZNL243 Brand FYIOGXG Voltage 3.87 volts Model Name Replacement for Unit Count 1 Count Reusability YES Manufacturer CS Battery Weight 10 g Antenna Location Indoor/Outdoor Battery Capacity 1850 milliamp_hours Battery Cell Type Nickel-Zinc Number of Batteries 1 Nonstandard Battery batteries required. (included) Warranty Description 1 Year