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8HZ22OJ9
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Charmast PD 18W 26800mAh Power Bank, Portable Charger with 3 Input and 4 Output Port, USB-C Power External Delivery Battery Pack with Quick Charge 3.0 Compatible with MacBook/New Type-C iPad Pro/MacBook Air, iPhone, Pixel, and More
After Code Only:$48.99
Code:8HZ22OJ9
I bought this in November. I tested it with a 1A and 2A load at 5V and only got about 14,500mAh out of it. Taking into account a boost converter efficiency of 70%, the cell inside is more likely a 21,000mAh LiPo like the SLPBA390190 rather than 26,800mAh.
I contacted the seller twice but never received a reply. I got in touch with Amazon and they sent me a refund after I returned the battery.