First Commit

OneNote/OSD/Battery/Requirements.md

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+- Overcurrent protection
+- Overcharging over discharging protection
+- Over-voltage, under-voltage
+- Under temperature
+- Switch to shut off the battery
+- Balanced charging
+- Communication with system (can? I2C?)
+    
+    - Cell voltages
+    - State of Charge (SoC)
+    - State of health (SOH) capacity compared to initial capacity
+    - Temperatures
+    - Current
+    - State of Safety (any safety indication: combination of SoC, SOH, temperatures, currents, etc.)
+    - Energy delivered since last charge
+    - Internal impedance --> can be used to estimate when to replace battery
+    - Coulomb counter (how much charge delivered so far and how much is stored?
+    - Total number of cycles