KiWiQQ
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Posts posted by KiWiQQ
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On 2018/4/13 at 9:45 PM, DR99 said:
To get the higher amp hours in the pack they had to move to larger cells. Probably battery packs with 18650 cells will be phased out eventually
But as I know, the 20700 or 21700 cells cost is higher than 18650 cells, btw, have you ever used the power tools batteries with 20700 / 21700 cells inside?
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I noted that there already have some big brands used the 20700cells for their power tools battery, like Metabo LIHD, Bosch core/ProCore, DeWalt FlexVolt, so if the 20700 / 21700 cells will become a tendency? Or they just wanna give users more options, because of the 18650 cells still can meet requirement.
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1 hour ago, kat said:
I don't see why there would be a problem. They don't have the Makita logo anywhere on them, and obviously they don't have the same PCB.
The only thing that could be similar to the original batteries is the connector and but I'm pretty sure it's modified enough to not break any patent.
It's a good thing that there are compatible batteries out there, choice is good, free market is good. Patents are a cancer to technological advancement, they are the reason why all the breakthroughs that you see on the news every day never get implemented in mass products. Most of them are not even owned by the inventors, but by some greedy individuals who just buy the ownership rights and leech of the patent lawsuits for years. Apple is the most obvious example.
Hi Kat, I understand your point, but I just feel confused because Makita has sued one company called Kastar, here is the link FYR https://zh.scribd.com/document/340420043/Makita-v-Kastar-Complaint Why he only sue specific company but now there is no any problem for so many other sellers selling replacement batteries on Amazon or Ebay? Do you have any idea?
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Doesn't Makita have patent protection? Why so many un-known brands sell 18V LITHIUM replacement battery for Makita power tools on Amazon & Ebay without any problem. I'm not quite understand it, can anyone explain a little bit? Thank you.
For the 18V power tools lithium battery, if the 20700 or 21700 cells will be in common use?
in Power Tools
Posted
Their 6Ah can not meet your requirement? I also confuse why does Makita still have not higher capacity battery pack (more than 6Ah), I ever heard of some rumor about they will release new pack which use 20700 cells, but for now still have not been confirmed.