5x actually. (4x PLUS the original 1x for 5x total). I agree with you, just argu... | Hacker News

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		dragontamer on June 2, 2015 \| parent \| context \| favorite \| on: Batteriser: a gadget that extends alkaline battery... 5x actually. (4x PLUS the original 1x for 5x total). I agree with you, just arguing a technicality.

wlesieutre on June 2, 2015 [–]

Increased by 4x the original, or increased to 5x the original.

I'd tend to read "extends battery life 800%" as 100%+800%, but they left out the word that would specify one or the other.

Still, I'd interpret the numbers the same way as I would "extends battery life 50%," which I can easily imagine someone writing.

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