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Old 08-05-2018, 11:09 AM   #15
rcodi
Hardware Pedant
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Posts: 12
Karma: 56836
Join Date: Jul 2018
Location: USA
Device: InkPalm 5, Kobo Glo HD
Quote:
Originally Posted by Derf View Post
I tested fitting a hypotheical thicker battery into my clara HD by placing a thin piece of aluminum sheet 0.050" (1.27mm) thick onto the battery and closing up the back cover.

While the cover did fit, with two pieces of metal sheet it did not close. I contemplated that a thicker battery than the Clara's 2.8mm thick battery, such as a 4mm thick battery, would fit in the clara, if I wanted to do a battery upgrade.

However, when batteries are charging they swell slightly in size, and when there isn't sufficient room to expand, bad things happen. The Samsung Galaxy Note 7 recall is clear history lesson that without room for expansion, a battery can explode.
A wise consideration, it's seeming less feasible as I look into this more as well. It's hard to find a battery that doesn't essentially double the thickness of the stock one in the Glo HD which won't work because the back cover on this device is already pretty close.

It seems the engineers didn't leave much room for improvement - the only idea I have left is to cut out a square from the plastic reinforcement backplate behind the motherboard which seems excessively thick. That should get pretty close to doubling the height of the battery bay in this device.
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