UNSTOPPABLE POWER - The FieldMax MAX-PACK Lithium Rechargeable Battery Cartridge is designed for maximum power & convenience; With a 12-volt/5,000 mAh lithium-ion capacity, this power pack for trail cameras ensures reliable, long-lasting performance RECHARGEABLE - This FieldMax cartridge virtually eliminates the need for disposable common power units; Rechargeable via a USB cable (included), it allows for simple recharging, ensuring your trail cameras remain powered for extended periods without the hassle PERFECT FOR LOW-LIGHT ENVIRONMENTS - Designed for tough terrains, the FieldMax MAX-PACK trail camera battery excels in wooded areas with limited sunlight; This battery cartridge keeps your cameras running where solar-powered alternatives may struggle