FAQS

When the red light goes off, it means the charger has stopped charging, in this case, there will no damage to the battery or charger if the battery remains inside the charger. But if the power to the charger (from the wall socket or computer for example) is removed the charger micro-processor may restart again. This may lead to battery overheating and damage as the battery is already fully charged.
If the charger is disconnected from the power source and the battery left inside there should be no damage.