> From: John Douglas Sent: Monday, October 11, 2004 15:57 > Shangara, > I have several chargers, two of the chargers "seems" to keep them cool. > While the third charger is faster, > the batteries are warm to the touch when the green light comes on, is there > a way to tell which chargers cool the batteries? > Thanks,
I am not Shangara but I can explain: When a battery is being charged, the electrical energy is converted to chemical energy and that process is relatively efficient so not much heat is generated. When the battery is fully charged, it can not absorb any more energy so the input energy got to go somewhere, so it gets converted to heat and the battery heats up. At that same time, the voltage of the battery is changing in a predictable manner and the charger detects this and shuts off the charging cycle. Basically the way to avoid heating up the battery is to charge it slowly for a long time. So by just feeling your batteries in a fast charger, you can tell if they are closed to be fully charged. To be technical, we are not really talking about batteries here; I really should have written "cells". (A battery is made from interconnecting several cells.) Bertho =============================================================== GO TO http://www.prodig.org for ~ GUIDELINES ~ un/SUBSCRIBING ~ ITEMS for SALE
