I was hesitant to purchase this product since it was not made by Canon far my very expensive digital SLR camera. This works with both non-namebrand Canon batteries and Canon batteries. No issues with them overheating. Love this product I can hook it up to my 12 vote in my car my USB on my computer or a USB on a portable battery pack I can plug it into 110 voltage I can hook it into my solar panel it works great great. It works great for traveling and it has rapid charging. The LED display shows you what percentage the batteries are been charged and if you’re charging low or high.