The logical answers are:
1. Replace the off-brand battery (which is not supported) with a known good one, preferably the original Canon battery for your camera
2. Use a multi-tester to confirm the battery has charge and how much that is.
cheers, TREVOR
The mark of good photographer is less what they hold in their hand, it's more what they hold in their head;
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris
