1. Exceptional Battery Capacity: This portable extended battery case boasts a battery capacity an for . from prolonged usage without frequent replacements, enhancing your experience and ensuring continuous tracking. 2. Optimal Power Source: Our motion tracking for battery case utilizes 2 * AA batteries (Not included batteries). We recommend using Lithium for longer lifespan. Alkaline batteries are not advised, ensuring efficient operation and extended life of your device. 3. Easy Installation Process: Remove for 's battery and metal door, place it on the customized contact point, insert AA batteries(Not included batteries), and tighten with the provided hex wrench. Experience the convenience of using a GPS tracking charger box effortlessly. 4. Unmatched Durability: Rated IP69 for waterproof capabilities, this battery replacement charger case is super sturdy. Smaller than an uncased for by about 1/3 in volume, it's compact yet solid for demanding environments. 5. Advanced Construction: Featuring ultra-strong fiber-reinforced composite structure and CNC machined screws, this small battery charging case is versatile for cars, trailers, motorcycles, luggage, camera bags, backpacks, snowmobiles, toolbox, etc. Color: Black Material: ABS Package Contents: 1 * Magnetic bag Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.