On Thursday 17 August 2006 10:58 pm, Rony wrote:
If anyone has any *technical* input regarding this matter then post your replies
all chargers are current driven devices. Hence all chargers have undervoltage protection by default and over voltage protection as an absolute neccessity. So No battery means charger clamps o/p to some safe level. Note some cheap standalone chargers do not have such protection and are dangerous. But rest assured that all phones and laptops will have these. Many chargers switch the battery voltage to a sense ckt, check if it's charged by discharging a little then continue charging. Some phones and devices have this built into the device / phone and hence can charge from any dc source. Batteries also have a thermistor built in to prevent Dell type mishaps.
Rgds JTD