1. The article mentions the next version is supposed to deliver 1 W 2. You can put a few of those for more power. The fact of not needing to replace it like ev

1. The article mentions the next version is supposed to deliver 1 W 2. You can put a few of those for more power. The fact of not needing to replace it like ever justify the extra space, I think (and can maybe be offset a little by not having to have a charger)? I'm looking forward to a power bank made of these. This would be epic.