Bests & Worsts Reviews from Amazon

I was quite sceptical of the high power capacity promises, so I put em to the test bench, I used a pixel 4 which has 2800 mah battery, so this 36000 should theoretically charge it roughly 12 times, now accounting for the industry's estimates of around a 3d of the power lost for heat and deficiencies, we are at an approximate of 8 full cycles, on to the results, after fully charging the bank for the first time, I got the pixel 4 to charge 1 full cycle plus another %70 of juice then the almighty power bank died, With this knowledge I calculated how many mah it actually has and its roughly 10-12k mah not even close to the promised 36k In the photo I opened up the unit to look for the actual battery capacity but to no avail, which is something I've never seen before. Conclusion: save your Jackie's and benjies and for the same power output get something smaller for a better price as an added bonus