Duration 12:21
Make Electronic Calipers Rechargeable with Junk Bin Parts
Published 4 Nov 2023
Make Electronic Calipers Rechargeable with Junk Bin Parts Subscribe to the channel: /channel/UCNt-VKnOf-6-vVYqdiI_K8g Support this channel via Patreon: https://www.patreon.com/allthingsoneplace In this video I am building something! I know, that’s not allowed here. But batteries are annoying, and my solution is also bad but it works so watch the video to find out how I solved the problem. Paid affiliate links to help the channel Anker Prime A2343 100W Power Adapter: https://amzn.to/3s45wbE ZMI PowerPack No. 20, QB826G 25k mAh, 210W: https://amzn.to/3KNM9dc Anker 737 PowerCore 24K Power Bank: https://amzn.to/3S9nSQL 165W Satechi USB Adapter ST-UC165GM: https://amzn.to/3YAgpNV 100W Desktop Adapter: https://amzn.to/3a4Pfuy Video on USB Cables: /watch/odJVLUhy5DVyV Video on Power Quality: /watch/EhN6GVx63rH66 Equipment: Video Editing Software: DaVinci Resolve 18 Video Camera / Still Camera: Sony ZV1 Lights: Three VILTROX VL-200T Microphone: Blue encore300 / MOTU / Reaper GW Instek GPM-8310 Power Analyzer https://amzn.to/3PiabfR Power Z USB 3.1 Decoy (PD 3.1 Emulator) eBay Siglent SDL1020X-E Programmable DC Electronic Load https://amzn.to/3PkL2Ba AC Power Supply: GW Instek APC-5050A https://amzn.to/3uk5p9V Website: https://www.allthingsoneplace.com/ Other Website: https://pqs.app/ 00:00 Intro 01:08 CALIPERS and BATTERIES 04:07 The problem 06:00 Calculating the solution 07:43 Building 09:10 Testing 11:00 Conclusion
Category Science & Technology
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Thank you for doing this, it’s an awesome service to the world! ... 4
I think if the LR44's in my set of very similar calipers start to annoy me enough I might print a small extenion that could mount onto it to hold a rechargeable triple A battery perhaps.
EDIT: In fact, I just searched "Caliper battery" on printables and there are many mods others have made for several styles of these cheap calipers. I've found a AAA mount for my style calipers and a "battery saver" for this style that slightly pops the battery out of contact when not in use. ... 6
As you found, these cheap calipers waste an absurd amount of energy when off, which is their major problem. An alternative approach would have been to switch to an LR44 battery (basically an alkaline cell in the same size/shape, vs the 357 which are silver oxide) and then add a little micro-switch to the top/side to disconnect the battery when they're not in use. It's not like this device retains anything important in volatile memory, so fully switching them off solves the discharge problem and alkalines have extremely low self-discharge. I consider the risk of leakage minimal, because most of these kinds of clone calipers are cheap anyway so it's not the end of the world if they somehow get bad enough leakage to kill them.
I am, however, highly offended at your use of a mini-B USB socket on this device. I bought a multipack of USB C female connectors on small breakout boards for pennies off aliexpress for retrofitting into old devices in my quest to eventually banish micro-B and mini-B from everything I use, and they work great. Only issue is the ones I got make the classic error of not having proper pads/breakouts for both pull-down resistors (they just tie both CC pins to the same pad) to specify current on USB PD aware supplies, so they require a bit of rework (that I've now done ahead of time) to play nicely with things like e-marked cables. ... 2
NiteCore 10k "worlds smallest and lightest 10k mah power bank". it's a carbon fiber body, lithium polymer battery bank. (which polymer? who knows)
this is the battery bank suggested by every hiking, outdoors, backpacking, camping, travel channel on YouTube. ... 1
Thanks
Thank you for doing this, it’s an awesome service to the world! ... 4
I think if the LR44's in my set of very similar calipers start to annoy me enough I might print a small extenion that could mount onto it to hold a rechargeable triple A battery perhaps.
EDIT: In fact, I just searched "Caliper battery" on printables and there are many mods others have made for several styles of these cheap calipers. I've found a AAA mount for my style calipers and a "battery saver" for this style that slightly pops the battery out of contact when not in use. ... 6
As you found, these cheap calipers waste an absurd amount of energy when off, which is their major problem. An alternative approach would have been to switch to an LR44 battery (basically an alkaline cell in the same size/shape, vs the 357 which are silver oxide) and then add a little micro-switch to the top/side to disconnect the battery when they're not in use. It's not like this device retains anything important in volatile memory, so fully switching them off solves the discharge problem and alkalines have extremely low self-discharge. I consider the risk of leakage minimal, because most of these kinds of clone calipers are cheap anyway so it's not the end of the world if they somehow get bad enough leakage to kill them.
I am, however, highly offended at your use of a mini-B USB socket on this device. I bought a multipack of USB C female connectors on small breakout boards for pennies off aliexpress for retrofitting into old devices in my quest to eventually banish micro-B and mini-B from everything I use, and they work great. Only issue is the ones I got make the classic error of not having proper pads/breakouts for both pull-down resistors (they just tie both CC pins to the same pad) to specify current on USB PD aware supplies, so they require a bit of rework (that I've now done ahead of time) to play nicely with things like e-marked cables. ... 2
NiteCore 10k "worlds smallest and lightest 10k mah power bank". it's a carbon fiber body, lithium polymer battery bank. (which polymer? who knows)
this is the battery bank suggested by every hiking, outdoors, backpacking, camping, travel channel on YouTube. ... 1
Thanks