We want you to let us know which of the following designs would make you proud to show off your PowerCore, rather than hiding it away in your pocket.

Once over 150 people have participated in the poll, 10 people from the comments section will win a pack of 24 Anker AAA batteries! We’ve prepared 10 mystery numbers, so just leave a comment telling us your thoughts on the designs, and if your comment lands on one of the 10 mystery numbers, you’ll win!

Some hints about the mystery numbers:

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1*

1*

2*

2*

2*

3*

3*

*8

*8

Which PowerCore design is the most appealing to you?

A) is based on the 18650, this one being 3, you typically used a Panasonic cell
B) is based on a Lithium Poly cell, this one being one cell.
C) is based on the 21700, this one being 2, you typically used LG.

Of the 3, I personally preferred the shape of B) because it’s more pocket friendly, but A) is lighter, more compact, and C) you were able to drive up the Wattage. So I’m also as interested in their performance.

As this is post 3, not divisible my 2, it cannot win. I know that.

Depends on the total size. If its in the 5Ah - 10Ah region then yes it fits in pocket and then slim shape helps significantly. Above that, then its in a bag and shape doesn’t factor so much. In fact, the slimmer ones work out heavier as the surface area higher and more non-functional plastic casing.

This is post 5, also not divisible by 2, so also cannot win.

I see Tank is replying, so he’s post 6. Good luck Rob.

Actually on a power density they’re very similar, to slightly worse. They win on higher Wattage. Popular with Tesla who is more interested in speed (aka MachoWatts).

Post 7 (cannot win). Good luck on your Post 6 above and your Post 8 I see typing below.

21700 cells have more power and can sustain higher discharge rates which is why I like them. Certain cells can also have a higher capacity up to 5100mAh where as the 18650 generally tops out at 3.6 to 4.2