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| == Power Bank Support == | | == Power Bank Support == |
| [[File:ATX Power Bank Support.png|right|500px]] | | [[File:ATX Power Bank Support.png|right|500px]] |
| Asset Tracker devices have a power bank support functionality. It improves battery life by allowing for a larger discharge range for the battery and focusing on powering device from the connected power bank.
| | Power bank support functionality enhances battery longevity by enabling a wider discharge depth for the internal battery and prioritizing the use of external power, such as a connected power bank, to operate the device. Crucially, the internal battery will be protected from both undercharging and overcharging, ensuring optimal operational health. |
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| === Basic operation ===
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| Power bank support functionality checks for power bank connection via USB. When connection is established, it analyzes current battery voltage. If current battery voltage value is in the range of minimum and maximum battery topoff threshold, device will prioritize external power source. If current battery voltage is not in the range (is too low), device will use switch charging mode or it is too high, it will stop charging.
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| '''Note:''' If the power bank is connected, but the battery is not charging, Asset tracker will check for USB connection status change every 10 seconds until battery charging starts. This logic will change with the new ATX hardware in future releases.
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| === Power Bank mode and Power Off Sleep ===
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| When the battery reaches the upper topoff threshold, charging stops and the power bank enters sleep mode, causing the external voltage to drop below 4V. The device then shuts down remaining modules and enters Real Time Clock sleep mode.
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| If the device is in Power Off Sleep mode, but not yet in Real Time Clock sleep mode and the timer to generate a record expires, the device wakes up, creates the record, and then repeats the cycle.
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| '''Note:''' Power bank detection relies on sensing external power, not the USB detection interrupt, because some power banks leave a small voltage (1-3V) on the line when sleeping.
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| ==Location settings== | | ==Location settings== |
