相機電池充電發熱，我諗充左一個鐘就好熱，應該溫度太高自己息左燈，係canon電池，第一次充。點解會咁?同埋要充幾耐，有咩要注意?

1. It is normal that batteries get hot during charging.

2. How long you have to charge depends on the battery and charger. However, if you are using genuine original manufacturer accessories (such as Canon batteries with Canon charger), the charger will have fail-safe mechanism and will shut off once the charging is completed.

你用原廠充電器嗎？電池也是原廠嗎？電池寫for canon就唔係原廠電，看看充電器有冇寫你電池型號