Storing Cookies (See : http://ec.europa.eu/ipg/basics/legal/cookies/index_en.htm ) help us to bring you our services at overunity.com . If you use this website and our services you declare yourself okay with using cookies .More Infos here:
https://overunity.com/5553/privacy-policy/
If you do not agree with storing cookies, please LEAVE this website now. From the 25th of May 2018, every existing user has to accept the GDPR agreement at first login. If a user is unwilling to accept the GDPR, he should email us and request to erase his account. Many thanks for your understanding

User Menu

Custom Search

Author Topic: The water battery review.  (Read 4425 times)

stevensrd1

  • Sr. Member
  • ****
  • Posts: 460
    • The power of water.
The water battery review.
« on: February 15, 2019, 04:55:21 PM »
Video on the water battery that supplies power for decades. Cant seem to upload it here, can be watched at https://youtu.be/pjUUYSgTEsY

skywatcher

  • Sr. Member
  • ****
  • Posts: 441
Re: The water battery review.
« Reply #1 on: February 15, 2019, 08:07:58 PM »
For the same money you can buy some Lithium batteries which will also power a clock for 10 or 20 years.
I have a pocket calculator which is almost 30 years old and it's still running on the same Li battery.

stevensrd1

  • Sr. Member
  • ****
  • Posts: 460
    • The power of water.
Re: The water battery review.
« Reply #2 on: February 15, 2019, 08:25:08 PM »
I have a TI-108 calculator been running many years. I took it apart one day to clean it as drink spelt on the keys. Know what I found, it has no battery in it. Just a solar panel on front, and a capacitor in place of where I assume the battery would be. Works with any room lighting. Which makes sense really who needs calculators with batteries that quit working when the battery drains. After all no one is going to use the calculator in the dark anyway.