Specifications

Smart Battery Charger Specification
SBS Implementers Forum -Page ii- Revision 1.1
6.1.6. “Float” Voltage 20
6.1.7. Smart Battery Charger Start-Up 20
6.1.8. Charger Operational Modes Clarifications 21
6.1.9. Optional Smart Battery Charger Registers for Selector Support 23
6.1.10. Optional Charger Interrupt Mechanism 23
6.1.11. Battery Internal Charge Control 23
6.2. Level 2 Smart Battery Charger Characteristics 24
6.2.1. Required Commands 24
6.2.2. Charge Initiation 24
6.2.3. Charge Termination 24
6.2.4. Charge Current and Voltage 24
6.3. Level 3 Smart Battery Charger Characteristics 24
6.3.1. Required Commands 24
6.3.2. Charge Initiation 24
6.3.3. Charge Termination 25
6.3.4. Charge Current and Voltage 25
APPENDIX A. SMART BATTERY CHARGER COMMAND SET IN TABULAR FORM
26
APPENDIX B. SMART BATTERY SYSTEM SAFETY FEATURES 27
“Wake-up” Charging 27
“Controlled” Charging 27
Discharging 28
APPENDIX C. SMART BATTERY ALARM BITS 29
APPENDIX D. IMPLEMENTATION EXAMPLES 30
Emulating a Smart Battery Charger with the Host 30
The keyboard controller as Host 30
No-host charging 31
Master-only Host 31
Non-DC Charging 32
APPENDIX E. ACCURACY REQUIREMENTS 33
Charging with an Accurate Charger 33
Charging with and Accurate System 33