Dr. Peter's Financial Systems Blog
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  • 126. The three virgins
  • 125. My work as an inventor
  • 124. Bad programmers develop email systems at Google
  • 123. Fed & Worldwide interest rate hikes
  • 122. The End of Putin and Russia
  • 121. Disaster in Europe and the end of Ukraine Russia war
  • 120. Is this the end of Ukraine?
  • 119. Proton car salesman
  • 118. Coming worldwide catostrophic diasasters to come
  • 117. President Joe Bideen there is something wrong
  • 116. Does YouTube Malaysia hate non muslims?
  • 115. YouTube increase subscribers and views
  • 114. YouTube is broken
  • 113. open letter to Sundar Pichai, Sergey Brin & Mark Zuckerberg OAuth 2.0 and Contact Us Forms
  • 112. Visions regarding the church and the Chinese
  • 111. The coming worldwide cataclysm
  • 110. President Biden Declares Mass Killings of Armenians a Genocide
  • 109. Checking for clogged arteries
  • 108. President Biden tax revenue from stocks, commodities & forex
  • 107. Thank you President Trump
  • 106. Telecommunications companies billing flaws, bandwidth and other problems
  • 105. President Trump, What has happened to America?
  • 104. Is the China Virus an American Virus?
  • 103. Congratulations to President Elect Biden
  • 102. novel lithium ion battery protection circuit design for longer working life reduce toxic waste
  • 101. Did I cure myself of covid-19 coronavirus?
  • 100. President Trump bless you and recover from the China virus quickly
  • 99. Black lives matter too and so do the lives of the non-Chinese
  • 98. how to overclock cpu with technology that has not been invented yet
  • 97. vaccine lobby conspiracy theory the coming worldwide economic depression
  • 96. laptop refurbished cpu overheating with novel cooling techniques other errors.
  • 95. Letters to President Barack Obama during the great recession of 2008
  • 94. The Cedar of Lebanon is falling. Internet fake news fraud scams and pseudo communist social media companies
  • 93. coconut oil could cure viral diseases coronavirus hiv rubella hepatitis c influenza shingle rabies nipah.
  • 92. YouTube and the death of Western civilization by the coronavirus
  • 91. covid 19 and additional cures and relief for other health problems
  • 90. President Trump infections and the spread of covid-19 until 2024
  • 89. President Trump alternative cures for covid-19
  • 88. President Trump the corona virus and relief from neuropathy nerve pain
  • 87. a potential cure for Covid-19 virus
  • 86. President Trump a potential cure for Covid-19 virus
  • 85. President Trump the effects of the corona virus on the US economy
  • 84. A sad prophecy for Malaysia
  • 83. You are a hero President Trump
  • 82. do not make paul into a god and misunderstanding the laws of Moses.
  • 81. poor protestors rebellion revolution in many countries hong kong bolivia chile peru iraq
  • 80. Star of David Banner
  • 79. Prosperity God Jesus Christ in the churches in malaysia
  • 78. president trump jared kushner $50B palestinian peace plan would not work
  • 77. problems youtube video not showing homemade bread recipe.php
  • 76. php ziparchive not working apache server hard disk full problems
  • 75. LG fridge problems
  • 74. President Trump beware of scams
  • 73. open letter to Sundar Pichai, Sergey Brin & Mark Zuckerberg on proxies, caches and ip addresses
  • 72. open letter to Sundar Pichai, Sergey Brin & Mark Zuckerberg on auctions
  • 71. the tyranny of the turks
  • 70. formulae for Pythagoras Theorem
  • 69. A parallel processing theorem for machine and robotics control
  • 68. Angela Merkel should be nominated for the Nobel Peace Prize
  • 67. Why does the church not want the Ten Commandments?
  • 66. responsive web design for all devices using php superglobal variables
  • 65. We cannot block hackers anymore
  • 64. Books & e-books for sale
  • 63. Comparison of indices DJI, S&P 500, NYSE, NASDAQ and interest rates
  • 62. Predicting the NASDAQ trend from 2016 to 2020 and the S&P 500 from 2017 to 2022
  • 61. Forecasting the NYSE and the DOW Jones Industrial for 2018 to 2022
  • 60. my letters to the prime minister during the 1997 Asian Financial Crisis
  • 59. The way forward
  • 58. Wake up Israel it is time
  • 57. The Calling of the Lord
  • 56. Congratulations President Trump on the bombing of the Syrian military base
  • 55. President Trump and the 7 muslim nations
  • 54. Cure for diabetes and neropathy nerve pain
  • 53. Thank you President Barack Obama
  • 52. healing from ankle and knee joint pain with stem cell products.php
  • 51. Congratulations to President Trump
  • 50. Obamacare
  • 49. High cost of insurance premiums
  • 48. Past predictions and the price of gold
  • 47. Save the children
  • 46. Sino Russian world war and the end of America
  • 45. The Lord Gods blessing and generational curses and gays lesbians
  • 44. Slowing economic growth
  • 43. False teachings in the church in Malaysia
  • 42. Banking problems in Malaysia with AmBank
  • 41. Banking problems in Malaysia
  • 40. Historical-performance-of-my-commodity-price-prediction-charts
  • 39. Major changes to the earths continents to occur if Israel is divided
  • 38. Block hackers bad bots scrappers stop ddos attacks wordpress blog sites
  • 37. China starts world war 3 with rampant piracy and bullying smaller nations
  • 36. Powerful nontoxic insecticide used in my kitchen for exterminating ants
  • 35. Soybean prices forecast chart 2013 2014 2015 2016
  • 34. Palm Oil price trend prediction 2012 2013 2014
  • 33. NYSE Composite Index prediction of 2015 Bull Run
  • 32. Brent-crude-price-forecast-2012-2013-2014
  • 31. Congratulations-President-Barack-Obama
  • 30. Indian stock exchange nifty index prediction chart
  • 29. Soybean prices commodity chart prediction for day traders and others
  • 28. Huduh is not for malaysia and the errors in huduh
  • 27. My rapeseed commodity chart prediction useful for day traders and others
  • 26. Problems problems and more problems
  • 25. stock chart signals and price action patterns - by Steve Sollheiser
  • 24. Malaysian property prices and the property market
  • 23. Malaysian population growth and Malaysian property prices
  • 22. False teachings of the muslim terrorist
  • 21. The alternative technical analysis for commodity and stock market analysis
  • 20. Malaysian property price, bubble and crash in 2012
  • 19. The basics of stock market, forex, commodity and financial economy models
  • 18. Gold price and business opportunities
  • 17. US Economic recovery and growth part 4
  • 16. US Economic recovery and growth part 3
  • 15. Gold price forecast trend chart 2011 2012 2013 2014 2015 2016
  • 14. US Economic Recovery and Growth Part 2
  • 13. US Economic Recovery 2009 2010 2011
  • 12. How to predict gold price trend 2011 2015
  • 11. Malaysian property prices and the property bubble
  • 10. Distribution of Wealth Model and Supply and Demand
  • 9. Gold price forecast 2011 2015
  • 8. Explanation of inflation and model of inflation hyperinflation
  • 7. Approximate silver price trend prediction chart june sept 2011
  • 6. how to predict stock and commodity trends
  • 5. Causes of economic crisis recession and high inflation or hyperinflation
  • 4. What is inflation and how to manage inflation
  • 3. Making sound investment decisions
  • 2. forecasting commodity and stock market trends
  • 1. Dr. Peters Loan Calculator
    « Did I cure myself of covid-19 coronavirus?
    The Glitter of Gold lasts forever but you need to shine a light on it.
    - Dr. Peter Achutha, November 2009
    Congratulations to President Elect Biden »

    Novel lithium ion battery protection circuit design for better working life reduce toxic waste

    Lithium ion battery and portable huawei modem

    Lithium ion batteries issues

    How toxic are lithium batteries? Can lithium batteries be recycled? Can we prevent failed li-ion batteries being dumped into landfill dumping sites? Can we re-examine the lithium battery charger?

    Failed lithium batteries are thrown into landfill dumping sites

    Many countries do not have a procedure or process to recycle failed or damaged li-ion batteries. Even in Malaysia these batteries are thrown into the rubbish bin for disposal into landfills.

    Lithium batteries can be very toxic if they corrode or are damaged. When that happens the lithium chemicals leak into the ground and are consumed by bacteria, plants and animals which in turned are consumed by animals. If these landfill dumping sites are converted into agricultural land, we will consume the food grown on these lands. Isn't there a lithium ion battery recycling process to stop disposing these batteries into landfills?

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    Ways to reduce lithium battery waste

    There are several potential ways to reduce lithium battery waste. Good manufacturing practices ensure a longer shelf life of the batteries. These good manufacturing practices include good welding of the parts so that they do not leak. Furthermore, extremely thin sheet metal casings will allow for corrosion and damage that can reduce their working life. Most importantly we need to increase their shelf life and working life.

    Accusations by lithium battery sellers

    I have heard of many accusations by sellers of portable equipment when we complain that the batteries do not last long. Many batteries just last a few months and then have to be replaced and this was my personal exprience too. Many of them only last less than 2 years. I suspect that the short life of these batteries is so that manufactures can increase sales of replacement batteries without any care or concern for facial injuries and toxic waste generated.

    They claim that the lithium batteries are damaged by improper usage. Their claims are :-

    1. We were charging the battery while using them
    2. We overcharged the batteries
    3. We charge the batteries overnight.

    These are excuses to cover up poor & cheap product designs and block refunds and other financial claims.

    Is it possible for lithium ion batteries to last 10 years?

    Is it possible for batteries to last 10 years? Currenlty lithium batterries have a very short working life of under two years and in some cases only a few months. If we could make them last longer then we would have less battery failures and less failed batteries being dumped into out landfills.

    What do we do when we run out of lithium ore? This is another reason we need to ensure that lithium batteries have very much longer working life, preferably a 10 year life span.

    Analysis of a Huawei portable modem

    My interest in lithium ion batteries began when I noticed that the batteries in my Huawei portable modem WIFI router had swollen. They, the modem and battery, were only 1 year and 2 months old when I noticed the problem. Now I suspect that the Huawei battery must have begun to fail much earlier. It could have begun to fail a few months after I purchased them.

    I took it back to the shop and the seller accused me of handling the batteries wrongly and was not going to replace the battery. He claimed that the batteries were damaged because of improper usage that I have mentioned above. Was this guy crazy? How can you overcharge the battery when it could only be charged by a USB supply?

    That was when I decided to find a solution to improve the working life of the lithium batteries which meant that I had to address these three issues:-

    1. the overcharging of the batteries and charging over long durations or overnight.
    2. the stopping of the usage of the battery when the USB supply was plugged in.
    3. only allowing either the USB supply or battery supply to be used when the modem was in use.

    What I found out applies to a host of other products from modern digital cameras to smartphones to other portable equipment.

    Improved working life of li-ion batteries

    I examined how the batteries were connected to the modem circuit and how the USB power supply was used. Then I came out with a circuit design to correct the power supply circuit and how to switch between the USB supply and the battery supply.

    What I noticed about the modem circuit

    When I was testing out the circuit, I noticed that the modem would not work if the battery was not detected. I noticed that the battery was swollen which meant that it could explode at any time. The battery casing was flimsy thin and could be pressed in to deform it. After more testing I found out that the modem would work with a 3.8V supply from my Nikon battery charger. This meant that the battery was not being charged but the modem was powered up.

    Please watch my video to the end at https://youtu.be/tS6GUcNazKg

    New circuit switches between USB power supply and battery supply

    After examining the modem and battery I sketched out a conceptual lithium ion battery protection circuit schematic. The lithium ion battery charging and protection circuit design is shown below.

    Lithium ion battery protection circuit diagram
    3.7v battery charger circuit diagram

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    li-ion battery protection circuit schematic explained

    1. On the left are two diodes. They drop the USB 5 volt supply down to 3.8 volts so that they can operate the modem circuit.

    2. On the extreme right top there is the option of using a trickle charger or a battery charger circuit that has built in short circuit protection and detects when the battery is fully charged and stops charging. These chargers can be bought from China by the thousands or you could use a charging chip. The trickle charger is basically a resistor that limits the current to the battery and will slow down considerably or cease charging when the battery voltage is maximized. Using a charging chip would be the better solution and no one can claim that the battery was overcharged or charged for too long.

    3. In the center of the circuit is a transistor circuit that activates when the 5 vols from the USB supply is available. It open circuits the relay so that the battery voltage does not power the modem circuit. This will prevent the battery from being charged and simultaneously being discharged. As a result, no one can claim that the battery was being charged and used at the same time. The relay is a NC, normally connected, relay. A cheaper but more inefficient solution would be to replace the transistor circuit with a resistor. That resistor would need to match the relay operation.

    Of course, there will be a lot more design work to make this a chip that can be used in modems, cameras, phones to make the world a safer place and prolongs lithium battery life. The camera manufactures like Sony, Nikon, Canon, Fujifilm and others and smartphone manufacturers, like Google, Apple, Samsung, Huawei, Sony, Nokia, . . . etc and portable equipment manufacturers like modem manufactures could bring out a variant of this protection circuit so that consumers can still use their lithium batteries safely.

    - Dr. Peter Achutha, 9th November 2020

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