Conversion kit lets you push your RAZR to the Maxx for $110

Let’s pretend you went ahead and purchased a shiny new Motorola RAZR this past November. Now, just for the sake of argument, let’s say Motorola — only months later — released a new version of that handset with a battery that had some pundits asking, ‘where has this phone been my whole life?’ Yeah, that happened. But if you’ve managed to overlook Moto’s past transgression, and are willing to sink another $110 into your handset, you too can experience the battery that just won’t quit.

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Conversion kit lets you push your RAZR to the Maxx for $110

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What if trees could be used as batteries?

Yes, our bark-skinned friends are nice and beautiful and we shouldn’t mess with them too much. But here’s the thing: we already chop them down for paper, so why not use their spare woody meat for batteries too?

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What if trees could be used as batteries?

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Tesla to owners: Plug it in

EV maker Tesla has come under fire for allegations that its vehicles can be “bricked” when their batteries are completely discharged. Such instances require that the cells be replaced to the tune of $40,000, which doesn’t sit well with folks who already forked over six figures to buy a Roadster in the first place

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Tesla to owners: Plug it in

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Ask Engadget: best sub-$70 smartphone battery pack?

We know you’ve got questions, and if you’re brave enough to ask the world for answers, here’s the outlet to do so.

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Ask Engadget: best sub-$70 smartphone battery pack?

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