What batteries can I use with my camera?

The message [Battery communication error.] is displayed if you use a non-genuine Canon battery pack, and user response is required.

Use of genuine Canon accessories is recommended. This product is designed to achieve excellent performance when used with genuine Canon accessories. Canon shall not be liable for any damage to this product and/or accidents such as fire, etc., caused by the malfunction of non-genuine Canon accessories (e.g., a leakage and/or explosion of a battery pack). Please note that any repairs your Canon product may require as a result of such malfunction are not covered under warranty and will incur a fee.