Building a Handheld PC
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Building a Handheld PC
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Re: Building a Handheld PC
#2It says the charging voltage is 8.2V, which is double the usual charging voltage for lithium cells.
Is it really safe to connect two 18650 cells in series like this?
I've read that you should manage each cell individually to reduce wear and/or risk of fire.
Re: Building a Handheld PC
#3It says the charging voltage is 8.2V, which is double the usual charging voltage for lithium cells. Is it really safe to connect two 18650 cells in series like this? I've read that you should manage each cell individually to reduce wear and/or risk of fire.
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Re: Building a Handheld PC
#4This is a fantastic demonstration of how accessible all this stuff is these days. Polish used to be the let down on DIY projects like this but 3D printers (for the case) have really moved the needle when it comes to high quality prototyping. I know this has been the state of things for nearly a decade now, but it still amazes me. Raspberry Pi, Arduino, 3D Printers, and the open source hardware community, will mark a paradigm shift in prototyping accessibility in the history books.
Re: Building a Handheld PC
#5Re: Building a Handheld PC
#6Have you thought of doing the same with an e-ink screen?
I would find it awesome to get work done while in nature.
Re: Building a Handheld PC
#7This is a fantastic demonstration of how accessible all this stuff is these days. Polish used to be the let down on DIY projects like this but 3D printers (for the case) have really moved the needle when it comes to high quality prototyping. I know this has been the state of things for nearly a decade now, but it still amazes me. Raspberry Pi, Arduino, 3D Printers, and the open source hardware community, will mark a…
It's super cool, but at the same time for many folks an iPad Mini with/without external keyboard would be a more adequate solution considering processing power.
Re: Building a Handheld PC
#8It says the charging voltage is 8.2V, which is double the usual charging voltage for lithium cells. Is it really safe to connect two 18650 cells in series like this? I've read that you should manage each cell individually to reduce wear and/or risk of fire.
If the cells are matched it is less of a problem.
But 2S battery management boards with additional features like low voltage cutoff and current limits are only a few euros in single quantities, so I see no reason not to use them.
Re: Building a Handheld PC
#9This is a fantastic demonstration of how accessible all this stuff is these days. Polish used to be the let down on DIY projects like this but 3D printers (for the case) have really moved the needle when it comes to high quality prototyping. I know this has been the state of things for nearly a decade now, but it still amazes me. Raspberry Pi, Arduino, 3D Printers, and the open source hardware community, will mark a…
Raspberry Pis are accessible, in your opinion? There's been a deep shortage for years.
Re: Building a Handheld PC
#10It says the charging voltage is 8.2V, which is double the usual charging voltage for lithium cells. Is it really safe to connect two 18650 cells in series like this? I've read that you should manage each cell individually to reduce wear and/or risk of fire.
Looks like he's using a BMS with a centre tap to balance the cells.