Seems as described. A bit tricky getting the shell in and off but that's ok. Tried with my own batteries with known capacities, and was able to get approximately 70 percent of the expected capacity output from charging a device. Which is appropriate for the power conversion loss. I have some other cheaper ones that do much worse for power efficiency (like 50 percent).
l***c (498)- Feedback left by buyer.
Past month
Verified purchase
As described, quick postage and packaging. Highly recommended.