- on Power Supplies
- Published in issue 12/2005 on page 0
Simple Li-Ion Battery Charger
This article shows a simple circuit for slow charging while preventing any risk of overloading the battery. The circuit consists of just four components. The battery is charged to about a quarter of its capacity in one day, to 50% in one week and 80% in one month — sufficient we reckon for equipment that’s on all the time.