Hard to remove from the battery compartment
I bought these to replace the original Panasonic battery I've had for 4 years.  I took for granted that these batteries would pop up out of the compartment when you pull the battery release latch, like my Panasonic battery did.  They do NOT.  The battery won't come out when you turn the camera upside down and shake it a bit, either.  It's pretty well stuck there until you can find a flat small object, like a small knife or flat screwdriver head, to pry/pull the battery out.  This is not a problem I'm willing to deal with for the next 2 or 3 years every time I need to charge the battery.  And it's not just one of the pair that does this--it is BOTH.  Also, it's worth noting that these generics weigh noticeably less than the original Panasonic battery. I'm sending them back for a refund.<br /><br />UPDATE:  To be fair, the company quickly issued me a refund online.  Very responsive and fair.
Rating: 1 stars