A:Answer Thanks for your question. Please find the difference below:
Regarding the “PowerCore Metro PD 20,000 mAh Portable Charger”:
1. It supports Power Delivery charging technology, it can fast charge your devices which support Power Delivery charging technology as well.
2. It can be fast recharged when using a PD wall charger (about 6.5 hours using an 18W PD wall charger).
3. A PD wall charger comes together in the package. You can use it to recharge the power bank.
As for the “PowerCore Metro 20,000 mAh Portable Charger” of $49.99:
1. The max output is 5V ⎓ 2.4A. It only charges the devices at a normal speed.
2. The recharging time is longer (about 10.5h).
If you have any further questions, please feel free to contact us via support@anker.com or call us at +1 (800) 988 7973.