very pleased with these li-ion batterys. acc. to Sony li-ion is no good for camera Flash. but the flash unit operates very fine with the kentli batterys.
Everything OK, I remommend to all! Great product for use in devices that are used in the winter (for me GPS and camera). I have a third and I can confirm that it is a more durable design than a solution with integrated charging from 5V (eg Jugee 2400 or 3000mWh, these have a high failure rate).