This upgraded 8000mAh 3.7V rechargeable lithium polymer battery is custom replacement power supply for premium outdoor trail game cameras. It achieves full seamless compatibility with 6 mainstream popular trail camera models: GardePro X66, GardePro X66 Pro Max, GardePro R3 Pro, GardePro E6 2.0 Pro, GardePro E8 2.0 Pro, Meidase P300 Pro and Meidase S965 Pro. This battery perfectly fits both 4G cellular remote monitoring cameras and local WiFi non-cellular wildlife trail cameras from the two series. Built with upgraded high-density battery core, it delivers larger capacity, stable continuous voltage output and ultra-long outdoor working endurance. Integrated intelligent multi-protection safety system inside, which effectively guards against overcharge, over-discharge, overcurrent, short circuit and overheating damage. It fully protects your camera device and battery itself, providing reliable stable power support under long-term wild harsh outdoor environment. The customized precise size perfectly matches the original built-in battery compartment of your trail cameras. Plug and play direct installation, no extra tools, no wiring or any modification needed. It greatly extends the overall working runtime of your game camera, supporting uninterrupted motion detection, high-resolution photo capture, 4K & 1296P video recording, and 940nm no-glow infrared night vision monitoring. It is an ideal spare backup battery for deer hunting, wildlife observation, farm security monitoring and wild field outdoor surveillance.