Pros & Cons
Pros
Buy it. Since putting these in, no more annoying messages. Zero issues.
Cons
They only offer a return window of 30 days for unused products in original condition. Buyer beware. Don’t be * like me and let the 30 days return window pass!
The only true 2amp or 3amp powered aa's or aaa. They never show any sign of 'low power' due to the fact that the chip shuts down when the internal voltage drops to ether 2. Many companies have random functions on how their cell disables.
The deception is in claiming 2775 mwh at 1. Most others are far less then this spec. During charge the amount of energy used to recharge them to full is only 40% of the stated capacity.
Gotta be honest. Who really cares? Not likely. No response. But not anymore.

Highlights
Quality
With the cost of lithium batteries these are well priced.
I have been using these with the quest 2 and would highly recommend them
2v and then goes down from there, so with the lower voltage you lose some of the tracking accuracy.
Meaning they do a lot better for tracking oculus controllers with the higher/more steady output.
There has has been some bad, and i feel, unfair publicity about lithium batteries, but it is a fact that their charging charact... Read More
Competitiveness
4 cell charger works off micro-usb cable which is included so you can (and need) to provide your own usb power supply.
Used my quest several times (around 3days straight) and the controllers are not even at 80%
Ease up on those marigns to gain some market share.
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Posted by a reviewer on Amazon
They charge very quickly and the quest controllers show up as %100 charged.
Posted by a reviewer on Amazon
Used my quest several times (around 3days straight) and the controllers are not even at 80%
Posted by a reviewer on Amazon
Some devices require cells that produce 1.
Posted by a reviewer on Amazon
No need to buy expensive and wasteful single-use alkaline or lithium batteries.
Posted by a reviewer on Amazon
I tested a set of 4 new batteries, and they produce their rated output voltage (1.
Posted by a reviewer on Amazon
When these batteries are exhausted, their output suddenly drops.
Posted by a reviewer on Amazon
In my test with 4 batteries, they produced a combined voltage of 5.