**Battery Drain Analysis – Catastrophic Discharge (1% in 30 Seconds)**

**Summary**  
The log confirms a rapid battery discharge: from **25% to 24% in exactly 30 seconds**, indicating an abnormally high power consumption (~120 mAh/min). The root cause is a combination of continuous GPS usage and repeated failed network attempts by the **Locus Map** app (`menion.android.locus`) while operating in the background.

---

### 🔍 Key Evidence from Log

1. **GPS Activity Every Second**  
   - Locus Map holds a `PARTIAL_WAKE_LOCK 'GpsConnection'` (UID 10273, PID 20313).
   - GPS location updates occur **every second**:  
     ```
     PassiveonLocationChanged gps 1760194444000  
     PassiveonLocationChanged gps 1760194445000  
     ...
     ```
   - This prevents the device from entering deep sleep.

2. **Live Tracking Fails to Connect**  
   - The app repeatedly tries to send data to `live-track.locusmap.eu`.
   - DNS resolution fails consistently:
     ```
     java.net.UnknownHostException: Unable to resolve host "live-track.locusmap.eu"
     DNS failed (10273) : 255
     ```
   - These failed attempts trigger **retries every second**, keeping the cellular modem active.

3. **Poor Network Conditions**  
   - Device is on **EDGE/HSUPA** (2G/3G), not 4G/LTE.
   - Weak signal (`level=0–1`) forces the modem to use **more power** to maintain connection.
   - Network validation fails:
     ```
     PROBE_HTTP ... UnknownHostException: ... connectivitycheck.gstatic.com
     ```

4. **Additional Background Load**  
   - **Tasker** (`net.dinglisch.android.taskerm`) also runs background services with location access, though less intensively.
   - Google Play Services (`com.google.android.gms`) shows minor location activity but is **not the primary cause**.

---

### 🛠️ Recommendations

1. **Stop Locus Map Completely**  
   - Force-stop the app or disable **Live Tracking**.
   - Go to **Settings → Apps → Locus Map → Battery → Restrict background activity**.

2. **Disable Live Tracking (If Not Needed)**  
   - In Locus Map: Settings → Live Tracking → Turn OFF.

3. **Improve Network Conditions**  
   - If possible, move to an area with **4G/LTE coverage**.
   - Alternatively, **enable Airplane Mode** temporarily to confirm if modem activity is the issue.

4. **Check Tasker Profiles**  
   - Review any Tasker tasks that request location or run services in the background.

5. **Monitor Battery Usage**  
   - After changes, check **Settings → Battery** to confirm Locus Map no longer dominates usage.

---

### 💡 Quick Diagnostic Test

- **Enable Airplane Mode** for 1–2 minutes.
  - If battery **stops draining rapidly**, the issue is **network-related** (modem + failed requests).
  - If drain **continues**, the issue is **GPS/sensor-related** (less likely here).

---

**Conclusion**  
The catastrophic battery drain is caused by **Locus Map’s Live Tracking feature**, which continuously uses GPS and repeatedly attempts (and fails) to send data over a weak 2G/3G connection. Disabling Live Tracking or restricting the app’s background activity will resolve the issue.