I have been looking at the upper range mAh Power Banks allowed by the TSA. Afaik the maximum allowed is 27000mAh. Quality, future proofing & pricing are my concerns. The two top brands I've identified for quality are Anker & RAVPower. I want to keep my pricing to $100 before taxes. I was also influenced by shorter charging times of phones etc. & recharging times of the Power Banks themselves. The Anker I'm looking at is: Anker PowerCore+ 19000mAh PD Hybrid Portable Charger and USB-C Hub with Included USB-C 30W PD Wall Charger $70 Anker A1362 Recharge Time 3.5 Hours Power Delivery: Deliver full-speed 27W charging to USB-C phones, tablets, laptops, etc. Hub Mode for Data Sync and Connecting Accessories And the RAVPower is two separate purchases because a 30W PD Wall Charger is not included: RAVPower 20000mAh 60W PD 3.0 USB C Power Bank $50 RAVPower RP-PB201 Recharge Time 3.0 Hours Power Delivery: Deliver full-speed 60W charging to USB-C phones, tablets, laptops, etc. & the RAVPower 61W PD USB C Charger[GaN Tech] Type C Wall Charger $25 RAVPower RP-PC112 (the 30W was only $3 cheaper) Alternate suggestions welcomed. I ended up with ~20000mAh solutions because 27000mAh quality solutions were over $100.
Until someone with specific experience chimes in, all I can say is I have used several Anker products, including several of their branded chargers, high capacity batteries, and "tactical" flashlights. And all have been very reliable, trouble-free, extremely well designed and built. So if I were looking, I would not hesitate to get Anker based on my experience with their products. That is NOT to say the RAVPower are inferior. I just have no experience with them.
Bought anker before and heard ravpower are good so you are on the right track. You could try putting those models into hotukdeals which is a deal site but does have user comments on products as well.