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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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Elise Bauer

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Last Updated on July 10, 2019

11 Brain Training Apps to Train Your Mind and Improve Memory

11 Brain Training Apps to Train Your Mind and Improve Memory

Whether at work or at school, people these days are under tremendous pressure to perform, perform and perform! Stress and pressure can have adverse affects on the well-being of a person, and need to be controlled.

Now, this doesn’t mean you make a dash to your nearest therapist. There are a number of wonderful and smart apps that you can use on your phone. These brain training apps have been scientifically designed to target specific areas of the human mind and control harmful emotions such as anxiety, as well as to improve memory and sharpness of the brain.

Here are 11 iPhone apps that you will not only enjoy but also find useful in keeping your mental health balanced at all times.

1. Lumosity

This app consists of games that focus on improving the user’s memory, problem-solving capability, attention span, and thinking. There are three games in each session, and they challenge the brain by changing every time. The user has to complete the games while playing against a clock.

Free of trial. $15 per month for the full version.

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Luminosity Mind training apps-Lifehack

    2. Fit Brains Trainer

    This brain training app has 10 sets of games that work on different areas of the brain and improve memory as well as concentration. A user is required to finish a particular task from each category on a daily basis and the app tracks the progress by a color coded graph.

    Free.

    Fit Brains Trainer Mind training apps-Lifehack

      3. CogniFit Brain Fitness

      Developed with the help of neuroscientists, this fun app improves a person’s cognitive abilities, which includes memory and concentration. The progress made by the user over a period of time can be tracked. Users can also play challenge rounds with their friends. The app also modifies the difficulty level to suit the profile of the user and provide recommendations based on the results. Spending 20–30 minutes a few times every week can give measurable improvement in the performance of a user.

      First four games free, then $13 a month.

      cognifit-Mind Training Apps-Lifehack

        4. Brain Fitness Pro

        The makers of this app claim that it can improve the IQ of a user, and improve intelligence and memory. The app is fun and is user friendly, and 30 minutes a day can fetch you results in less than three weeks.

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        Buy for $3.99.

        5. Happify

        If nothing else makes you happy in life, this app will. Well, this is what the developers claim at least. This app comes loaded with lots of quizzes, polls and gratitude journals, which work on the fundamentals of positive psychology. The app also helps to control stress and emotions to make you feel better.

        Free to use.

        Happify-Mind Training Apps-Lifehack

          6. Clockwork Brain

          You will like the little gold robot that comes in every time to explain the next game you are going to play. While the games are not much different to those offered in apps such as Luminosity, the look and feel reminds me of a workshop from old times.

          Free.

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          Clockwork Trsin-Mind Training Apps-Lifehack

            7. ReliefLink

            Initially created as an app for suicide prevention, it has found its use as a great app for tracking the mood of the user by taking measure of all things relevant to the user’s mental health. In case the user experiences high emotional stress, the app has a coping mechanism that includes voice-recorded mindfulness, exercises and music for relaxation. There is also a map that informs the user of the nearest therapist and medical facilities for mental health treatment.

            Relief Link - Mind Training Apps - Lifehack

              8. Eidetic

              Eidetic is a memory enhancement app and uses a ‘spaced repetition’ technique to help users memorize information such as important phone numbers, words, credit card details or passwords. It also notifies you when it’s time to take a test to see what you remember, so that you retain information in your long-term memory.

              Eidetic - Mind Training Apps - Lifehack

                9. Braingle

                Braingle helps to maintain the sharpness of the brain and improve the reasoning ability of a person through riddles and optical illusions. It is different from other brain training apps that employ memory and reaction based tests. You can also compete with your friends and family members in figuring out the fun riddles.

                Free.

                Briangle- Mind Training Apps-LIfehack

                  10. Not The Hole Story

                  If you have a penchant for solving hard riddles, then this app is a must-have for you. Filled with exclusive riddles along with a simple-to-use interface, the app gives you riddles that you have to solve through a book. You will be given hints along the way, and when you give up, the answers will be revealed. This app will encourage you to broaden your thinking and put your mind to a challenging test.

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                  Free.

                  Not the hole story - Mind Training Apps - Lifehack

                    11. Personal Zen

                    This fun brain training app follows the journey of two animated characters who travel through a field of grass. Personal Zen is a nice app meant for reducing anxiety and trains the brain to focus on the positive aspects. The developer’s advice is to use the app for 10 minutes a day to see the best results.

                    Free.

                    personal zen- mind training apps - lifehack

                      Featured photo credit: NeONBRAND via unsplash.com

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