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What's the real reason that laptop batteries are made not-accessible?

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tooki:

--- Quote from: SilverSolder on December 06, 2021, 06:10:17 pm ---

It is method 2, as you suspected.  I still use an S5 and I wouldn't trust it under water...  but I do trust it in the rain, or on wet bar countertops, etc.!

I would gladly give up an IP rating in exchange for a replaceable battery.  I think I'm on my 5th or 6th battery in my S5...  if it was glued in, the phone might well be damaged by now from being "unglued" so many times?  -  also, I am enjoying the 0.5TB storage on the SD card, and I also enjoy hooking the audio output into the "Aux In" on my car stereo.   Sadly, there is nothing to attract me into buying a new phone, there are so many suckers lined up to buy the content-reduced new ones that the market for people like me is too small to care about!

--- End quote ---
I’m absolutely certain that IP ratings are a huge boon to both manufacturers and users, since without it, even small amounts of liquid ingress can ruin a device. As I said, this was a huge problem in the past.

Ungluing doesn’t hurt anything. The adhesives are basically high tech tapes, die cut to form gaskets. You use gentle heat to make them pliable. For years now, Apple has secured batteries using adhesive strips similar to 3M Command tape: it has a pull tab on the side. Pull on it and the tape stretches out (many times its original length) and releases without damage. (You absolutely don’t want people digging at glue under a lipo pouch using a sharp tool, after all!)

I dunno about micro SD slots, but fully waterproof headphone jacks exist. With that said, any car made within the last 10-15 years will play music digitally off the phone’s USB, ranging from basic iPod and USB Mass Storage support all the way up to modern CarPlay and Android Auto, both of which also exist wirelessly now. So the need to use an actual analog aux jack has completely passed.

David Hess:

--- Quote from: james_s on December 06, 2021, 08:27:15 pm ---
--- Quote from: David Hess on December 06, 2021, 08:25:08 pm ---Pouch batteries have a shorter life than cylindrical batteries because of their physical construction.
--- End quote ---

What does that have to do with this? Both of my iPhones use pouch batteries, just like the Samsung device mentioned.
--- End quote ---

You mentioned (modern) batteries are failing so quickly.

Besides the construction, mass produced batteries are made to be as cheap as possible while meeting the minimum requirements.  Common mass produced batteries only have a rated life of up to 500 cycles maximum, and many are less, which is way less than originally advertised for the technology.  I found this out a couple weeks ago when looking for high cycle life 18650 cells.

tooki:
P.S. I actually wonder if people’s anger is based on misunderstanding what “glued in” actually means. Maybe they are thinking “epoxy” and “superglue”, when in fact almost all of it is advanced adhesive tapes. (If you’ve ever used 3M VHB tape, this is the class of product used.)

David Hess:
The battery in my cell phone is completely user replaceable.  The back cover pops off with no tools, and the battery pops out.  I changed it a couple months ago.  It lasts maybe two years.

SilverSolder:

--- Quote from: james_s on December 06, 2021, 06:16:20 pm ---
--- Quote from: SilverSolder on December 06, 2021, 06:10:17 pm ---I would gladly give up an IP rating in exchange for a replaceable battery.  I think I'm on my 5th or 6th battery in my S5...  if it was glued in, the phone might well be damaged by now from being "unglued" so many times?  -  also, I am enjoying the 0.5TB storage on the SD card, and I also enjoy hooking the audio output into the "Aux In" on my car stereo.   Sadly, there is nothing to attract me into buying a new phone, there are so many suckers lined up to buy the content-reduced new ones that the market for people like me is too small to care about!

--- End quote ---

I wonder why the batteries are failing so quickly? I replaced the battery once in my iPhone 4 before the phone got so slow due to software bloat that it was no longer viable to use. My current iPhone SE is still on the original battery although it's starting to get to the point where I'll be considering putting a new one in there sometime in the next year or so. That's one failed battery and one retired due to phone replacement in a ~10 year period.

--- End quote ---

I suspect what kills them for me is heat...  the S5 gets glowing hot when using Waze in the car, and I use Waze many hours per week...

Doing the math, the S5 is from around 2014.  So changing the battery every 2 years would require at least 3 batteries to get to 2021...

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