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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 November 3, 2020

20 Best Mac Apps for Productivity You Need in 2020

20 Best Mac Apps for Productivity You Need in 2020

Whether you use your Mac for work or just for your personal projects, you’ve likely found yourself wondering how to improve your productivity. There are only so many hours in a day, and so much mental stamina you can muster before you run out.

There are dozens of tricks you can use to improve your own productivity and outlook, but if you’re looking for a more objective, comprehensive fix, the best thing to do is equip your Mac with productivity apps designed to help you do more in less time.

This Lifehack-exclusive list has some of the best productivity apps to help you feel less tired, improve your energy, and ultimately help you get more done every day.

What Makes For the Best Productivity Apps?

Beyond productivity tips, there are dozens of productivity apps to choose from too. With that in mind, here are some of the core aspects of ideal productivity apps that have formed this list.

  • Non-intrusive – you want a productivity app to weave seamlessly into your workflow and not cause disruptions. From using the app to the overall display, it shouldn’t cause any interruptions.
  • Good interface – Again, you want to be able to use these apps easily and have them benefit you. The easier you can navigate around these apps, the better.
  • Fair pricing – Many of these have free trials that allow you a good chance to test before you buy. If you do decide to pay for it, the monthly pricing plans should be reasonable for what you are getting.

1. Todoist

    Available for all iOS devices, Todoist is a note-taking and organization app that can keep you on top of all your projects—both personal and professional.

    Its best features are all free to use, including browser extensions, task creation, and interactive boards you can use to organize all your notes.

    If you want to pay the optional $29 yearly fee, you can get even more advanced features like backups and automatic reminders. Even with the free version, you’ll stay far more organized.

    Download: Todoist

    2. 1Password

      You may not realize it, but you probably spend a ton of time recalling your passwords, especially if and when you forget one to an app you use on a regular basis.

      1Password is an app for Mac that saves and remembers all your passwords for you in one place, so you can access all your favorite sites with a single click.

      You’ll save time and keep all your accounts secure simultaneously. A personal plan is $2.99 per month.

      Download: 1Password

      3. Bear

        Bear is a unique kind of note-taking app designed to make it easier for Mac users to jot down notes on the go. With it, you can create to-do lists, give yourself reminders, and outline concepts for future brainstorming sessions.

        It comes with many different inline styles so you can customize your notes to your personal preferences, and remember the context in which you wrote them. The core version is free, with a $14.99 per year version available as well.

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        Download: Bear

        4. Hazel

          Hazel by noodlesoft is an automated organization tool designed for Mac that will help you automatically organize your files based on any custom rules you want to create.

          For example, you can set it to move untouched items from one folder into another folder labeled “action items” if they haven’t been addressed within a week. It can save you hours of organization over the course of a few weeks. A single license is a flat $32.

          Download: noodlesoft

          5. Alfred

            Alfred is an all-in-one app designed to save you time with Mac shortcuts and convenient custom actions. You can use it in a variety of ways.

            For example, you can access Alfred’s clipboard memory so you don’t copy and paste the same material over and over, or set up custom workflows to automate some of your most repetitive tasks.

            It’s a paid app, with multiple price points based on the features you desire.

            Download: Alfred

            6. TextExpander

              TextExpander does exactly what the name suggests; it allows you to type a short snippet of text, and expand that text automatically.

              For example, you can create a custom expansion that allows you to conjure a full paragraph you type repeatedly by simply typing a unique abbreviation. Once you get used to your custom combinations, you’ll spare your fingers from typing thousands of words.

              An individual account is $3.33 per month.

              Download: TextExpander

              7. Backblaze

                If you’ve ever experienced a crash, or theft of your Mac, you know how much time a system restore can cost you. You’ll spend hours replacing the files you lost, and lose thousands of files that are irreplaceable.

                Backblaze is an automated, inexpensive way to back up your entire Mac for just $5 a month.

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                Download: Backblaze

                8. Keyboard Maestro

                  Keyboard Maestro is an older app that still has the power to make your life easier. With it, you can automate any number of tasks based on a certain trigger (such as a hotkey combination, or an event like connecting to a wireless network). A single license only costs $36.

                  Download: Keyboard Maestro

                  9. Snagit

                    There are many applications for a good screen-capture app, whether you’re trying to illustrate a tech problem you have or just want to make an interesting meme. Snagit makes it easy, with built-in editing for both still images and video. A single license covers two machines, and costs $49.95.

                    Download: TechSmith/Snagit

                    10. Bartender

                      Bartender is the cleverly-named app that helps you clean up and organize all your menu bar icons. You can also access them quickly with keyboard shortcuts.

                      If you’re like most Mac users, those icons get cluttered quickly and stop you from working efficiently. It’s free to try for 4 weeks, after which you’ll need a $15 license.

                      Download: Bartender

                      11. Otter

                      Otter is the Mac app for the note taker who hates typing. It’s an intelligent voice-recognition system and note-taking app that will help you transcribe your conversations, keep notes during meetings, and even take contextual notes to yourself in your own time.

                      Best of all, it’s free to get started!

                      Download: Otter

                      12. Flux

                        Do you often find yourself feeling tired throughout the day, or feeling unable to get to sleep after a day of staring at your computer? That could be because of the unnatural blue light that radiates from your Mac.

                        Flux naturally adapts your display to emit light that matches the time of day, so you can sleep better and feel less tired. It’s also free!

                        Download: Flux

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                        13. PDFpen

                        If you deal with PDFs on a regular basis, you probably find yourself wishing for some kind of tool that can let you mark up those PDFs however you want. Without a dedicated app like PDFpen, this can be difficult.

                        PDFpen lets you edit PDFs in almost any conceivable way, giving you more power and saving you time. A single license is $74.95.

                        Download: Smile Software/PDFpen

                        14. OmniFocus

                          OmniFocus is all about task management. It has a clean interface that allows you to tag your tasks, schedule events, and even automate certain features.

                          It’s one of the most comprehensive solutions on the market, so there’s a bit of a learning curve to get the most out of it.

                          A standard license is $39.99, while the pro version is $79.99.

                          Download: OmniFocus

                          15. Franz

                            It’s tiring to switch between dozens of different chat programs like Facebook Messenger, Slack, and WhatsApp, whenever you want to have a conversation with a different contact.

                            Franz’s solution is simple; offer access to all these apps in one convenient package. And best of all, it’s completely open source.

                            Download: Franz

                            16. MindNode

                              If you’re the brainstorming type, you need an app like MindNode to help you efficiently organize your thoughts. There are dozens of tools you can use to connect ideas in a mind map, or simply jot down notes for future reference.

                              The core app is free, with in-app purchases available.

                              Download: MindNode

                              17. Focus

                                The internet is a wonderful thing, but it can be awfully distracting. And if you’re like the majority of us, you’ve interrupted work on a project because of some attention-grabbing site or bad online habit. That’s where Focus comes in.

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                                This app allows you to block the worst offenders with custom time limits and other constraints, so you can focus on the task at hand. A single license is $19.99.

                                Download: Focus

                                18. CleanMyMac

                                  Chances are, your Mac isn’t working as fast as it could, thanks to gigabytes of clutter and unnecessary files on your system. CleanMyMac helps you scan your Mac, monitor its health, and ultimately clean it up—so you can handle all your tasks that extra bit faster. A single license is $39.95.

                                  Download: CleanMyMac

                                  19. Grammarly

                                    A spelling error or grammatical mistake can cost you big time. It could be the source of a worse grade on a big paper, or compromise your credibility in the workplace. Thankfully, Grammarly can help you.

                                    This Mac-integrated writing assistant monitors all your writing and makes live corrections, so you’re alerted to your potential mistakes before they become permanent.

                                    A free version exists, but the premium version will cost you between $11 and $30 a month, depending on how you pay.

                                    Download: Grammarly

                                    Focus To Do

                                      Focus to-do is one of the top productivity apps for your iPhone around. It even has a desktop client that you can connect to effortlessly. The app is built around two things: the Pomodoro technique and task management. It achieves these things with amazing balance. All that you have to do is create a task and then set the timer right within the app itself.

                                      There is also great flexibility with the Pomodoro technique as well. You can choose whether to take a 5 minute break, take a longer one, or even skip it. On the task management side, you can also create reoccurring tasks, reminders, and place a priority on tasks too.

                                      Download: Focus To Do

                                      The Bottom Line

                                      These productivity apps should help you squeeze more productive hours out of every day, but they aren’t the only tools you’ll have to help you find success.

                                      Make the time to learn about and experiment with all the life hacks that can make you more productive. By improving your devices as well as your outlook and focus, you’ll be able to get far more done in a day, and feel better doing it.

                                      More to Boost Productivity

                                      Featured photo credit: Patrick Ward via unsplash.com

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