Table of Contents
Table of Contents 2
1. Introduction 5
1.1 What is a BMS 5
2. How to Build a Battery Pack 5
2.1 Safety Precautions 5
2.2 Planning 5
2.2.1 Gather Components 5
2.2.2 Gather Consumables 6
2.2.2 Gather Tools 7
2.3 Top Balancing 7
2.4 Assembly 9
2.4.1 Arranging the Cells 9
2.4.2 Connect the Balance Wires 10
2.4.3 Prepare BMS 11
2.4.3 Add BMS 11
2.4.5 Temperature Sensor 11
2.4.6 External Switch 12
2.4.7 Connectivity 13
2.4.7.1 Bluetooth Module 13
2.4.7.1 USB Interface 13
2.4.7.3 Arduino LCD Display 15
3. BMS Parameters 15
3.1 Protection Parameters 15
3.1.1 Cell over voltage 15
3.1.2 Cell under voltage 15
3.1.3 Battery over voltage 16
3.1.4 Battery under voltage 16
3.1.5 Charge over current 17
3.1.6 Discharge over current 17
3.1.7 Charge over temperature 18
3.1.8 Charge under temperature 18
3.1.9 Discharge over temperature 18
3.1.10 Discharge under temperature 18
3.2 Capacity Parameters 18
3.2.1 Designed Capacity 18
3.2.2 Cycle Capacity 19
3.2.3 Full Charge Voltage 19
3.2.4 End of Discharge Voltage 19
3.2.5 Discharge Rate 19
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