Welcome to Designer Entryway. Musical Instruments & Gear. Cell Phones & Accessories. 2gig Alarm panel Gc3 Replacement Battery 2GIG-BATTERY-GC3. 2gig Gc3 Replacement Battery 2GIG-BATTERY-GC3. The 2GIG BATTERY-GC3 is the backup battery for a 2GIG GC3 or 2GIG GC3e. This battery keeps the system powered if the transformer is unplugged or if the electricity goes out. The battery needs to be replaced every few years with a new one. Li-Polymer, 3.7 V, 2500 mAh. Operating Voltage range 2.9 to 4.2 VDC. All Products has to be in Original Packaging, not used, all seals intact and in a perfect condition. E, reason for the return. However, failure to submit any item could impact the eligibility for credit. Upon receipt Designer Entryway, LLC. Will assess the condition of the product and will determine if a defect exist in the material/product and will be result for final judgment to determine the final credit. All Electronic items are to be inspected, in working conditions also they are subject to be inspected for matching Serial numbers from our records. And our Customer Service team will be happy to assist. Join Our Exclusive Newsletter For Up To Date News, Special Offers And New Arrivals. Get in touch with us. Designer Entryway LLC Kissimmee, Florida Postal Code 34745 United States. Listing and template services provided by inkFrog.