Low cost portable charger for our eSMART Li-XXwh lithium battery range. Replaces the eLC-AMP which is discontinued. The eLC-SMB is a fast, reliable and secure charger for li-ion smart batteries. It charges a 49 or 98-Wh battery in 3 hours. Thanks to its lightweight and compact design the eLC-SMB can be carried anywhere in a backpack or directly in the sound bag. The charger is 100% SMBus 1.1 compliant. The battery automatically programs the charging current and voltage each time it is connected to the charger. The charging process is monitored in real time using parameters such as charging current, battery voltage, and temperature. A 5-LED bar graph indicates the charging progress. The charger also features a battery wake-up function for fully depleted batteries.