Introducing the easiest way to keep all of your cellular trail cams charged while keeping your own boots off prime hunting ground - with the Solar Battery Pack from HME. Available with 3,000mAh and 5,000mAh lithium-ion batteries, these solar panels rely on renewable energy, not boxes of traditional batteries that cost a fortune and fizzle out at the most inopportune times.The adjustable T-Swivel brackets can be positioned to blend seamlessly into their surroundings, while also easily gathering enough light to power your gear through back-to-back days of low-light conditions. Durable weather-resistant ABS housing stands up to wind, rain and adverse weather. Panels can be used individually or strung together for loads of additional power and are compatible with any camera that has an external 12-volt DC jack. Plus, the convenient LED battery-indicator lets you know at a glance how much life is left. Integrated USB charging port and cable lock pass-through slots ensure setup with the adjustable nylon camera strap is swift and simple, no tools required.