Battery on my Android Tablet died, so I upgraded it with 18650 replaceable batteries. Tutorial with pics

Krudler
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204M

Why spend $12 on an easily replaceable battery when you can just use $11.97 worth of 18650’s and six hours of your life?

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creator
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24M

Free batteries from an old power bank…

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724M

That’s… a lot of batteries for one tablet. Where are the other 18,647?

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194M

That thing in the back isn’t a tablet, its 18,647 batteries in a metal trench coat.

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34M

Omg

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74M

Lol assuming this is an honest question, or answering for those that are truly wondering, 18650 is a type of battery, not the count. Like AA, AAA, etc.

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34M

I do appreciate how hard it can be to tell the difference sometimes.

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1684M

How to have the whole train car to yourself.

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714M

def looks like a handwritten 00:00:01 countdown clock on it lmfao

Billegh
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14M

Yeah, I thought it was like a defuse the bomb type thing.

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404M

It would be much simpler to use an external battery pack, like this.

LiveLM
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264M

Mfs out here really trying to get shot by law enforcement lmao

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54M

Lol, probably not going to wait for cops, just gonna rush them before the bomb gets set off.

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84M

As a human being living in the real world, that’s a terrible idea. Please never take it out of the house.

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24M

Went on a tour of an airport (small international one). Security told us they get weird scares all the time. A guy had a paperweight novelty grenade in his bag. Crazy part was they knew him-he worked there for 30 years and had recently retired. Dude missed his flight and had to answer looooots of questions. FBI didn’t clear him for travel until a month later. They said it wasn’t a prank either, guy just didn’t think anything of it.

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24M

Getting banned from all air travel speedrun.

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-144M

this looks more like “how to set your house on fire”

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214M

Only to people who say such things

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124M

the only difference between this and the internal one is that its more sucepptible to piercing damage, but the contraption itself isnt any more inherently dangerous conpared to the battery in the tablet itself.

if youre worried about house fires at all one shouldnt even use lithium ion batteries period.

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54M

Well except for the exposed contacts from the holder. These types of holders are designed to be on the inside of things and not exposed. Bridging one side to the other would be a fire and explosion risk. OP needs to put a cover over it to be safe, or at least some kapton tape over the exposed contacts.

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creator
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24M

You are correct - I forgot to link to the tutorial page on my website where I’m pretty sure I explained that I’m fully aware of the risk and nobody should do this

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204M

It would work fine. Could use a cover.

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54M

As long as it’s all wired correctly it should be fine.

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44M

who makes thoese cells?

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114M

18650’s? Those are a dime a dozen. Unless you want the actual company that made those specific ones. If that’s the case, I can’t help you.

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54M

Well brand does matter, as their specs have been widely incorrect to sell cheap batteries to make them seem premium.

bizarroland
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I mean you can always just get LG’s. Pretty hard to go wrong with them as long as they’re official

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54M

Yes, Samsung, LG, Sony if you can get them. I’m very “anal” about 18650/21700 battery safety. I have seen perfectly brand new cheap ones just vent for no good reason and it aint pretty.

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creator
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14M

Really? It never happened to me even after shorting one once… There are some super cheap ones at the local Chinese store I was thinking of trying out, the brand ones are pretty reasonable already though, so that’s what I use. Maybe will give the cheapies a miss at least for indoor projects

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24M

there’s a guy who reviews batteries. his name is mooch.[]=

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14M

Sounds kinky.

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14M

:3

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creator
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214M

This is the best hack I have ever done!

LiveLM
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It is very unique for sure, I don’t think I’ve ever seen this done on a tablet before!

I worry about being able to take the tablet outside the house without getting the bomb squad called on you, but I suppose you could maybe 3D print a cover for it, maybe even integrate a kickstand for that extra functionality lol

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464M

Cool, but I’m not seeing a link to the tutorial.

Pretty awesome hack to extend life on devices that are otherwise meant to become e-waste. Kudos!

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creator
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24M

Thank you that was the idea, In the missing tutorial I explain that I used batteries from a power bank with a broken usb. So yeah re-using stuff, this tablet should last 10 more years at least! https://www.circusscientist.com/upgrade-your-tablet-with-replaceable-batteries/

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154M

what I often miss on a laptop or a tablet ?

A handle.

It’s also a great place to put batteries.

The Thinkpads understood that, but then forgot

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If you already opened it to install this, why didn’t you just buy an actual replacement from China?

ETA:

This is (probably) a Blackview Tab 12 Pro

I found a proper replacement ranging in price from $10 to $30 depending on if you wanted a Stateside store and faster ship or willing to wait for AliExpress.

This is a solution in search of a problem

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creator
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14M

Context I live in a country with an unreliable postal service and shit currency. Also batteries were free from an old power bank

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364M

but replacing the battery doesn’t mean you get to have a tablet with replaceable batteries

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54M

The logic here is astounding.

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04M

replaceable batteries as in AA batteries

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154M

It proves you already had a tablet with replaceable batteries…

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74M

Replaceable vs “easily replaceable”

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24M

I guess we could use the term “swappable” here as a distinction.

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34M

I’ll accept that compromise. Now I’m more curious if the batteries are hot swappable though. It’d probably cause some chaos with the battery indicator but just making me think…

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14M

Wouldn’t the battery indicator already be fucked because of this? Do those cells match what it came with?

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creator
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14M

Actually capacity exceeds the original spec. Battery indicator seems accurate though.

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creator
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14M

If you get more likes on your comment I am willing to test this

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44M

Ig, but you can expect a Li-ion to last about 2-3 years, it’s not that much of a chore to open it up every 3 years, especially after the first time

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64M

Maybe op really likes to carry spare batteries instead of, you know, a power pack?

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24M

why should you open it up again, instead of just charging/replacing the repalceabke batteries

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34M

Because they’re ugly, bulky and inconvenient as fuck.

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24M

okay but who doesn’t want a tablet with replaceable batteries

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44M

I did this last year with an e-reader

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creator
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14M

Geez did I not link to the tutorial here? That’s what happens when you’re in a hurry. https://www.circusscientist.com/upgrade-your-tablet-with-replaceable-batteries/

Also, no I don’t take it out of the house - and the batteries are from an old power bank so essentially free.

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