The total cost of this trail camera power box is less than $40.

Parts to make a power box below.

Battery cable 4.0x1.7mm for tactacam trail camera 👇🏻

Trail Camera Power Cord,79inch DC External Power Cable Compatible with Tactacam Reveal X XB SK,4.0x1.7mm DC Plug Trail Game Camera https://a.co/d/fq4fENU


Battery storage box. This is not the exact one I have because I bought mine at costco but this one will work.

Plano Field/Ammo Box | Heavy-Duty Storage Case for Hunting and Shooting Ammunition https://a.co/d/2ii2K3c

12v battery

Mighty Max Battery ml7-12 - 12 Volt 7.2 ah SLA Battery Brand Product, Black https://a.co/d/1ibuNv5