Casio CP-10 calculator repair

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Teardown Lab - Casio CP-10 calculator repair
Can I save the life of this #retro calculator by creating a new battery pack for it?
These are great and relatively cheap on eBay and at car boot sales, have a look next time you are out for some!

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Thanks you lovely people, and keep on tinkering!
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Was excited to see this come back to life, glad it was something so simple!

hiimcody
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I just did this mod with alkaline batteries and it runs like a champ now!
I took an ATM receipt 🧾 and trimmed it down to test the printer and it works fine!

auxmike
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Would it be possible to just install lithium cells that would last forever in that thing?

auxmike
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the batteries were fully charged before dispatch and the charger is 9v center negative, the printer not only prints the calculations but can also print a monthly calendar (handy to stick on the fridge to know when bin days are).

ImpaledGryphon
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Great job, try setting your soldering iron to 550° F, your tips will last longer and you would not overheat components so quickly, plus, it's all you need to use for most things

ELECTROHAXZ
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The original batteries in this device are NiCD; replacing them with these NiMH batteries is not recommended, at least not if you intend to keep using the original internal charging circuit.

casparv
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What about dismantling some older stuff and creating a new 3d printed case and making a 2017 modified version. (game gear?) *wink* The batteries that mine ate were mental. My favourite games were Taz and Psychic World from 1988.

mrdy