Charging Smaller Lithium Batteries Gently?
For a long time Nook insisted their ereader be recharged off the USB port of a computer. Mighty inconvenient at times. But I do realize that hammering the little guy with lots of current might be detr...
Forum Discussion
Li-ion batteries prefer to be recharged as much as possible and do not like to be drawn down low.
Most USB chargers charge at one of three common maximum charge rates: 500ma, 1a, 2.1a.
However, most devices with these batteries have intelligent charging circuits that will stop the charging process when the battery is full, and many/most/all? will slow the charge rate down as the battery nears full. None will allow the device to charge at an unsafe rate; so even if you use a 2.1a charger, your device might only pull 500ma.
If you are curious, you can get a USB volt/amp meter on Amazon for $15 or so.
Most USB chargers charge at one of three common maximum charge rates: 500ma, 1a, 2.1a.
However, most devices with these batteries have intelligent charging circuits that will stop the charging process when the battery is full, and many/most/all? will slow the charge rate down as the battery nears full. None will allow the device to charge at an unsafe rate; so even if you use a 2.1a charger, your device might only pull 500ma.
If you are curious, you can get a USB volt/amp meter on Amazon for $15 or so.
