Are $5 IKEA LADDA Batteries Identical to $20 Eneloop Pro Batteries?

Do you use Eneloop Pro rechargeable batteries in your photo equipment? You may be able to get the same performance at a much lower cost. This interesting 7-minute video from Matthew Eargle of AirborneSurfer looks into whether these relatively expensive batteries ($20 per pack of 4) are actually identical to the much cheaper IKEA LADDA batteries that cost just $5 per pack of 4.