Wasabi Power Battery for YI 4K Action Camera

It's garbage.

Great battery !!!!!

I'm a bit sad to write this review. I've used Wasabi Power batteries in the past on several other cameras, typically with good results. Though I've never had any aftermarket battery, from any non-OEM manufacturer, perform as well as the OEM one, typically they're close. I would say a 10-20% reduction is battery life is common.Sadly, the Wasabi Power replacement for my Yi Lite fared far worse. Keep in mind, my camera is only about a week old, so we're basically comparing brand new batteries. Shooting in 720P/30, which I used as my benchmark so my Micro SD card wouldn't fill up as quickly, I was able to get 2:35:17 out of the Wasabi. By comparison, I was able to get 4:05:49 out of the brand-name Yi battery. A full 58% more.Right out of the box, the Wasabi battery felt lighter. Usually not a good sign. This was confirmed on the scale. The Yi battery weighed in at 27 grams, the Wasabi, only 24.I think 3 stars is fair. It does work, albeit quite a bit worse than the real deal. However, it also costs less than half of what a Yi battery does.***My Rating Criteria***Build Quality(47.5%) - 4.0 StarsEfficacy(47.5%) - 2.0 StarsPost-Sale Support(0.0%) - n/aPackaging/Presentation(5.0%) - 5.0 StarsWeighted Average(100.0%) - 3.1 Stars

Niether good nor bad. Dont expect original kind of performance but surely will let you through with time when required. Use it as secondary power source and you wont be disappointed.