I personally have the Slim 10000 and while I like the thinner design in general, it’s actually larger and heavier (only by 7%, but still) than the PowerCore II 10000, but the power is the same.
So does lithium-polymer mean thinner but less efficient use of space? If that’s the case, not sure I’m sold.
Also, why is the PowerCore II Slim 10000 more expensive than the PowerCore II 10000? The PowerCore II 10000 is newer, and the one with upgraded materials and an 8-LED power wheel. They both have PowerIQ 2.
Assuming what @nigelhealy stated is true (Slim 5000 is also polymer), this doesn’t appear to be an isolated incident.
Look at the PowerCore 5000 vs PowerCore Slim 5000.
In both cases, there’s a 26-67% increase in price!
It all sounds good at first glance, but the more I look into it, the easier it is to see the major disadvantages.
But IF those can be overcome...
Then I would love one model to be around 10000mAh and have Power Delivery via USB-C! I think it would be ideal to have 2 PD ports in a larger power bank (say 15-20k) but not so sure about 10k. So maybe that port can be used for input and output and throw in 1 PowerIQ 2 USB-A port.
Now that would be pretty cool. As long as it’s not limited by the polymer tech in terms of dimensions, weight, and cost.
Oh, and PLEASE don’t release any more power banks with micro-B input. You already have plenty up for sale for those still hanging on.