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  1. dave9

    Questions lithium polymer battery

    I bet that whatever battery it uses, you can get on ebay with world-wide delivery.
  2. dave9

    Questions lithium polymer battery

    This is a whole lot of questionable forum resource allocation and effort. You can get just about any capacity and form factor battery today, just as the manufacturer of your widget did. You don't need to know much at all about it, just the type and measure it with a caliper so the replacement...
  3. dave9

    Woo-Woo Help please,

    You should contact police, and search for a security outfit in your area that can do a sweep of the premises. If they can't find anything then you should consult a psychiatrist. I might have the order of these things backwards. As far as the noise goes, I find it hard to believe that you...
  4. dave9

    Help me please to get a good night's sleep!

    It seems like this would be difficult to accomplish because if you're tusseling around to end up on your back, you might as easily dislocate the sensor that determines your orientation. I wonder if a harder mattress would help to make the tennis ball more pronounced, or if you used something...
  5. dave9

    Digital to Analogue

    It might have helped if you told us your location and what your digital source was. You might also want to consider whether this is worthy of the time and cost when a '70s TV may not have much life left in it. A better long term goal might be taking the chassis and shoehorning an LCD panel...
  6. dave9

    Two intel processor chipset which is the best?

    ^ I did go read someone else's threads. It was better use of my naive troll idiot nasty person time. ;) Did you follow the links I or bertus provided? Did you exercise due diligence at all in research or posting full specs of these two laptops? Even though this wasn't the appropriate...
  7. dave9

    fuse tap in F-150 truck: Can I add power for two additional devices?

    You really don't want to be rigging things with fuse taps and T-Taps. You should cut the wire a semi-short distance after it comes out of the fuse box and solder or crimp it back to its original wire and your added wire for your additional items listed. All those items should fall within the...
  8. dave9

    Questions lithium polymer battery

    ^ No, never charge it to 100% except to USE it enough that it drops to under 70% at the point of storage again, which may mean don't charge it to 100% at all if your use doesn't drain it that much. Charge to closer to 40% to 70% (lower giving longer total lifespan) for storage and yet, this...
  9. dave9

    Questions lithium polymer battery

    This seems strange to me, what phones used Li-Ion 22 years ago? IIRC most were NiMH at the time. Overall this topic looks like another one of those OCD, how-can-I-make-everything-last-forever, misadventures. Consumer access to a wide variety of Li-Ion pack sizes is much better on the...
  10. dave9

    Where to find 4" 16 ohm speaker?

    1) Where are you? 2) Can it be in a square frame? https://www.goldmine-elec-products.com/prodinfo.asp?number=G23659
  11. dave9

    Breadboard lead size

    What is it you hope to achieve? You can get finished TP4056 boards on ebay, TEN of them for $3 delivered. https://www.ebay.com/itm/10Pcs-5V-mini-USB-1A-18650-TP4056-Lithium-Battery-Charging-Board-With-Protec-H2/283644658123 ... or two for $3 if you'd like to receive them this year...
  12. dave9

    Good alligator clips

    I wasn't suggesting to go to any electronics stores. They'd charge a premium and it still might be junk Radio Shack. ebay shipping is often free (if you have the better part of a month to wait for things from China) or for small parts from Digikey, under 8oz IIRC, they have first class postage...
  13. dave9

    Good alligator clips

    Best way to get exactly what you want is to roll your own using major brand parts and the length and gauge, high strand count silicone wire you need. I would select a (low) wire gauge for durability rather than just meeting current handling requirements...
  14. dave9

    Power and potentiate multiple fans

    I like the desk fan idea, but a typical brushless, 2 wire computer fan is easily controlled by voltage or current limiting, as long as you stay above a minimum value as they need more torque to spin up than to keep spinning. If I went with computer fans I would use fewer, larger diameter, and...
  15. dave9

    Question preservation electronic device and evaporation muriatic acid

    ^ Then neither do your electronics have any problems from it, nor are any mitigations needed. Again, you are more susceptible than they are.
  16. dave9

    Mobile charger instead of Three AAA batteries

    Yes but you could instead just get NiMH rechargeable batteries to retain its portability. Why you would not have done this already instead of buying batteries "almost daily" is beyond explanation.
  17. dave9

    Question preservation electronic device and evaporation muriatic acid

    It's that guy who thinks everything is falling apart. You should do nothing but evacuate the area immediately. Electronics are more robust than humans and any amount of time that you remain there is going to kill you long before it does anything to your electronics. The exception is water...
  18. dave9

    Two intel processor chipset which is the best?

    You have exceeded our annoyance level. This is not the right forum to ask "which is the better laptop for my money". You can do that work yourself. If it's not worth it to you to bother, then why should it be worth it to us when you didn't bother? Please do not pretend to be a naive troll...
  19. dave9

    Two intel processor chipset which is the best?

    Usually an even easier way to compare two CPU or GPU is just type their names and "vs" in a google search, for example: https://www.google.com/search?q=E8000+vs+N4000
  20. dave9

    Sensors to detect and locate a fire

    ^ That is an example of detecting above a certain IR threshold without discrimination of what the source is. You could set the threshold higher than human body temperature but it can't be assumed that a fire is going to be a higher threshold, for example if the middle of a couch is...
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