I purchased a GPS tracker from Amazon and instead of wiring it to the car battery I would like to simply attach my own power battery pack.
I am a complete noob when it comes to electronics and I attempted using a 9V battery. It worked but the GPS tracker stayed on for about two hours. It consumes at 300 mAh, I've been told.
I then attached 8, 1.5V rechargeable batteries with 2300 mAh. How long should it last? Is it simply (8 * 2300) / 300? 61 hours?
What other batteries would you recommend to get the GPS tracker to last as long as possible. No car battery or acid batteries please!