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Lipo Safety: A Safety Guide for Using Lithium Polymer Battery Chargers

Lipo Safety: A Safety Guide for Using Lithium Polymer Battery Chargers

When it comes to lithium cell technology, the lithium polymer (LiPo or Li-poly) and the lithium ion (Li-ion) are significantly different from the commonly-used NiMH and NiCd batteries. There are various aspects to consider before you use lithium cells.

One of the most being safety. While every type of cell should be treated with caution due to energy contained in the batteries, once they are fully charged it is important to know that lithium cells contain the maximum in energy density. These batteries have unique qualities and require extremely specialized safety considerations.

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Charging Lithium Polymer Batteries

The lithium cells have to be charged in a very different way than the NiMh and NiCad batteries. These batteries require specialized chargers that are designed in a specific way in order to charge lithium polymer cells. One of the recommended chargers would be the TAHMAZO T26 charger; this is the type of charger that can be used on all cell types and is able to charge up to 10 LiPo cells. This charger features 10 battery memories, which makes it far easier to utilize.

Typically any type of charger that is able to charge the lithium ion will be able to charge the lithium polymer, making sure that the batteries in question have the correct cell count. It is extremely important to note that a NiMh or NiCad-only battery charger is never used to charge the lithium cells because charging the cells is dangerous when using the lithium batteries.

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Manufacturers and experts all recommend extreme caution when charging these cell types.[1] One of the first steps in preparing the charger for lithium cells is to make sure the charger has been set to the right cell count or voltage. If this step is missed the battery could potentially burst into violent flames. To date there have been numerous fires that have been caused directly from lithium batteries. For this reason it is now a standard practice that anyone wishing to use lithium polymer batteries should be aware of how to charge the cells and the safety precautions involved.

Below are the guidelines for charging and using lithium polymer batteries:[2]

  • Only use the chargers that have been approved for use with lithium batteries. These chargers should be designed for use on Li-Ion and Li-Poly.
  • The correct cell-count must be set on the charger. If the user is not informed on how to perform this operation it is advisable to rather use a charger that you do know how to operate or not charge the batteries at all.
  • Make sure to balance charge your new lithium battery for the next couple of cycles. After that you can do it every 10th cycle. This is vital due to the risk of a pack that has become unbalanced, thus having the potential to explode. If each of the cells is showing a reading that they are not within at least 0.1 volt to one another, the user needs to charge each of the cells separately up to 4.2 volts, which means they will all be equal. If after the period of each discharge the lithium pack shows up unbalanced, one of the cells are more than likely faulty and the entire pack will need to be replaced. (Of course, some lithium packs are different and will require a different amount of volts for recharging.)
  • The batteries and the charger need to be placed onto surfaces that are safe before charging the batteries, which means that if they do catch on fire damages can be contained. Some of the suggestions include fireplaces, Pyrex dishes that are filled with sand or a vented fire safe.
  • The batteries should never be charged for more than an hour at a time. Exceeding this time significantly increases the chances of a fire.
  • If one of the cells happens to balloon while on charge, the cell should not be punctured while still hot. This will cause a short circuit resulting in overheating. After you have let the cell sit in a fire safe place for at least 2 hours. Discharge the cell/pack slowly by wiring a flashlight bulb of appropriate voltage (higher voltage is ok, lower voltage is no) up to your batteries connector type and attaching the bulb to the battery. Wait until the light is completely off, then throw the battery away. This is an important step to do so the cell is safe enough to throw away.
  • The batteries should only be charged in ventilated and open areas. (In the case of a battery rupturing or exploding they will emit dangerous material and fumes.)
  • When charging lithium batteries, keep a bucket of sand nearby. This is a cost effective way to extinguish fires. It is very cheap and absolutely necessary.

(Also make sure to check out this battery disposal guide for information regarding instructions and regulations about battery disposal.)

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Final Thoughts

When it comes to handling lithium polymer batteries with care it is important for any user to realize that these batteries can be extremely dangerous. It is very important to follow these safety tips and ensure that the right charger is used.

Featured photo credit: Hexcam via dronetraining.co.uk

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Reference

[1] Battery University: Lithium-ion Safety Concerns
[2] Sydney Radio Control Society: October 2006 Newsletter

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Last Updated on September 11, 2019

8 Most Effective Games and Apps to Learn to Type Fast

8 Most Effective Games and Apps to Learn to Type Fast

Computers and cell phones have become an integrated tool in our professional and personal lives that the original methods of using pen and paper may not be so common anymore.

Although our old-school methods of note taking may not have entirely left us, technology is advancing with no intention of slowing down; iPads are moving into service industries, video calls are taking the place of in-person interviews, and store receipts are making its way into our email inbox – all of which requires the skill of typing.

Learning a new skill doesn’t have to be boring and never had to be. Thankfully, there are effective games and apps that can help you learn to type fast with swift precision and accuracy.

Why Typing Fast Matters?

Learning how to type fast is a game changer. In fact, you can save 21 days per year by typing fast!

Although shaving several minutes from curating a long email or texting paragraphs in a text message may not seem to be of great significance, the minutes soon do eventually add up and the long list of tasks then evolve into frustration. By the end of the day, time is being wasted, and the work pile is stacked high over your head.

Why not alleviate some of those frustrations through practice and dedicating your spare time to build muscle memory?

Learning a simple skillset like speed typing can drastically improve other essential areas in life including time-management and prioritization. Not only does it help you efficiently complete tasks at work and in your personal life, but it also boosts your productivity.

8 Most Effective Typing Games and Apps

Everyone learns at different speeds and uses various methods. While some work better under pressure and tight deadlines, others thrive when given ample amounts of time to learn and soak in the knowledge that is being provided. Despite the number of resources that are available in the hollow corners of the internet, it’s all about finding one source that helps you learn at your fullest potential.

Whether you’re a keyboard ninja or not, here are some effective typing games and apps that allow you to test your speed, accuracy, and maybe shoot some spaceships along the way.

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For Beginners

1. Speed Typing Online

    What’s more fun than to type to the story of Alice in Wonderland or the lyrics to “Hey Jude”? Speed Typing Online is an online typing game that allows you to dive into the creative and familiar world of famous books, fables, songs, and even hone your skills in data entry.

    The bright blue frame holds the text, which then turns green after punching in the accurate keystrokes. After the end of the personal timer, a statistics page appears to show you your typed words per minute, accuracy, correct and incorrect entries, and error rate.

    2. Typing Trainer

      Typing Trainer

      is another online platform suited for beginner typists looking for step-by-step lessons. Learning the keys on a keyboard can confusing especially for those who aren’t as familiar or getting adjusted to typing on a computer keyboard.

      Typing Trainer has a collection of step-by-step tutorials that covers everything from sentence drills, introduction to new keys as the lessons progress, and skills test. The Typing Trainer specifically highlights unique features in each lesson including a warm-up section where the user begin to build muscle memory and learn to type without looking at the keyboard.

      The website is also programed to identify difficulties the user is facing when typing specific words or sentences.

      3. TapTyping – Typing Trainer

        There is the feeling of physically typing on a keyboard and then there’s the feeling of typing on a touch screen mobile device.

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        Since the use of cell phones has become closely integrated into our everyday lives, learning to type on a mobile is much of a skillset as it is to type on a computer. The mobile typing app, TapTyping – Typing Trainer, allows users to practice while on-the-go making it perfect for commuters who want to practice typing during their down time.

        The app allows you to challenge other typists around the world with TapTyping’s global leaderboard and test your skills by taking advanced lessons. There’s always room for improvement and with the app, you’ll be able to find your mistakes by watching a heat map of your finger strokes.

        For professional writers and programmers

        4. The Most Dangerous Writing App

          Suitable for writers facing a creative block or on a tight-deadline, the Most Dangerous Writing App is a website that forces your fingers to type as quickly as your ideas.

          If you stop longer than 5 seconds, everything you had written will slowly disappear from the screen.

          Sessions are timed from 3 minutes to 20 minutes, or can go from 75 to 1667 words. This online app is perfect to brain dump ideas, write a chapter of a manuscript you’ve been stuck on, or help with procrastination.

          If you’re up to the challenge, try the hardcore mode – an alternative option where a single letter appears on the screen at a time. This level prevents you from seeing the entire word, sentences, or even correct any spelling or grammatical mistakes until the timer is complete.

          If you’re wondering, copying and pasting is not an option until each the end of each session.

          5. The Typing Cat

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            Looking to upgrade your typing skills? Also working as a personal tutor, the Typing Cat has a list of regular typing courses with the option to try other lessons with more complexity such as HTML. Learning to type code is a another valulable skillset worth adding.

            Even with disregarded interest in the coding world, using the code course enhances your typing skills and allows your fingers to familiarize itself with uncommon word combinations and placement of punctuations on a keyboard.

            The coding course can be difficult even for typing whizzes, but it’s all a part of muscle memory. According Psychology Today,[1] only a handful of people actually learn how to type by looking at an actual keyboard, while a majority of the population locate specific keys intuitively through muscle memory.

            Available courses include EcmaScript 6, HTML 5, and CSS 3.

            Fun typing games

            6. ZType — Space Invaders Meet Webster

              Remember playing the iconic 70’s game that allowed you to shoot tiny purple and green aliens from one end of the screen to the other with a two-bullet laser? It’s hard to believe that Space Invaders just turned 40 , but you can still get the same adrenaline rush with ZType, a typing game with the same shooting concept.

              Ztype works in waves – stages that must be cleared but instead of aliens, you must type out the words before the missiles destroy your ship at the bottom of the screen. Every so often, longer and mor complex words would appear and if the words are not typed in the allotted time, a series of letters will disperse like missles.

              The game is quick on the fingers and will still have your heart pumping until the very end.

              7. Epistory – Typing Chronicles

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                Although this game does cost money to purchase, it is worth the investment if you’re looking for a refreshing and alternative mode to learning how to type fast.

                Epistory – Typing Chronicles is a role-playing action and adventure game of a young girl riding a fox in a magical and fictional realm; together they combat enemies in the shapes and forms of words.

                Once you’re starterted, you almost forget you’re playing a typing game. The paper craft art aesthetics of the game has you captivated by the vibrant colors and character’s storyline, while having you build your typing skills.

                8. Daily Quote Typing

                  Need some inspiration? Say no more.

                  Daily Quote Typing is one of many gammes available on Wordgames.com – a website that offers a variety of typing games ranging from different levels based on your experience.

                  With Daily Quote Typing, users are able to type out inspirational quotes by famous leaders, inventors, and innovators such as Mark Twain and Albert Einstein.

                  Bottom Line

                  At the end of the day, discipline and patience is what teaches to type faster. It comes down to making that commitment to improving not only your typing abilities, but in a lifelong skill that benefits other areas in life.

                  By practicing daily and using effective games and apps, it’s only a matter of time before keystrokes will become second nature and your brain will adapt to learning other skills faster.

                  Featured photo credit: Unsplash via unsplash.com

                  Reference

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