Battery-friction calculator
Pet GPS Charging Frequency Calculator
“Up to 14 days” is easier to understand when it becomes roughly 26 charging events per year. Enter the battery interval you realistically expect, not only the marketing maximum.
Tracker A
Tracker B
How the calculator works
Charges per year = 365 ÷ practical days per charge. Charger-hours per year = charging events × hours per recharge. The tool is not estimating battery chemistry or predicting a specific tracker’s field performance; it converts the battery interval you choose into an annual maintenance burden.
Use a conservative real-world interval rather than automatically entering the best-case headline. Tractive, for example, publishes DOG 6 at up to 14 days with Power Saving Zones and also explains that battery life depends on GPS use, cellular conditions and how much time the tracker spends in power-saving areas. Heavy live-tracking use can shorten the interval materially.
Example: 14 days versus 30 days
A tracker that lasts 14 practical days requires about 26 charging events per year. At 30 practical days, that falls to about 12. If both take two hours to recharge, the difference is roughly 28 charger-hours per year. The electricity cost is trivial; the useful number is how often the tracker must be removed, charged and put back on the dog.
Why charging burden matters
A tracker cannot help during an escape if it is sitting on a charger. This matters most in households where doors or gates are opened frequently, dogs spend time off-leash, or the owner already has trouble remembering device charging routines. A longer practical interval can therefore be valuable even when two products offer similar location features.
Charging frequency should not be optimized in isolation. A larger battery can increase device size and weight, which matters on small dogs. Network quality also matters: a tracker with longer battery life but weak coverage on your normal routes can still be the worse safety tool.
Choose the right input
If you already own a tracker, use your observed average between charges. If you are still shopping, use a cautious figure below the manufacturer’s “up to” maximum and rerun the calculation at both optimistic and conservative assumptions. That gives you a range rather than false precision.
Read the battery-life guide, see GPS trackers for small dogs, or compare Fi Series 3+ vs Tractive DOG 6.