Rechargealbe Batteries and their chargersRechargeable Batteries and Their Optimized Chargers Texas Instruments Battery Management Challenges Safety Battery Run-Time Capacity Power conversion efficiency Battery charging Gas Gauge Accuracy Longer Battery Life Smaller Size & Weight Size and Weight Agenda Rechargeable Battery Characteristics and Charging Requirements Power Path Management Battery Charger 3MHz switching mode USB battery charger Multi-cell LiFePO4 and Li-Ion switching mode battery charger Summary Rechargeable Battery Characteristics and Charging Requirements Battery Chemistries Primary battery: Non-rechargeable (Alkaline) Secondary battery: Rechargeable NiCd: 1.0V to 1.5V NiMH: 1.0V to 1.5V Li-Ion LiCoO2 - Coke: 3.0V to 4.1V LiCoO2 - Graphite: 3.0V to 4.2V LiMnO4 - Graphite: 3.0V to ……