What makes lipo batteries puff

It depends. It is not an accurate science. It may puff after a few weeks, like it may puff after a few months. Not a very realistic scenario, but still an interesting finding. SO say you wanted to do some work with your Lipo on monday morning, it would be better to have the battery on storage charge, then finish charging monday morning, rather than doing a full charge on friday and having them sit fully charged for the weekend?

Save my name, email, and website in this browser for the next time I comment. Anybody who uses lipos will eventually encounter a puffy or swollen battery. Are Swollen Lipo Batteries Dangerous? Next question. What is electrolyte decompostion? Dispose of it properly see below and buy a new one. How to Dispose of Puffed Lipo Batteries The proper way to dispose of a swollen lipo battery is the same as what you would do when you throw out any old battery.

Tips to Avoid a Swollen Battery Proper charging — Make sure you charge your battery properly using a quality battery charger. For safety, make sure you put your batteries in a lipo bag while charging. And after you are done charging them, give them a little time before you use them. Proper storage — Do not store your batteries in a hot location.

Do not charge devices in direct sunlight or near a heat source, and do not store them in a hot garage or in a cold environment. LiPo batteries naturally get hot when used or charged, so before using or storing them, you need to give them some time to cool down and get them in normal as well as optimal condition. The discharge of the battery is obtained by the reaction of substances inside the battery, and all extreme means will affect these substances and the effect of the reaction.

Taking the right approach to use can bring you more energy, but also save costs and continue to power your devotion. Email: info grepow. There are so many different options to choose from, which Read more. LiPo batteries often abbreviated as Lithium polymer batteries are rechargeable batteries that use polymer electrolytes instead of liquid electrolytes. RC Read more.

Lithium-ion polymer batteries are widely used due to their long life and high capacity. However, there are some issues that can Read more. Your email address will not be published. Skip to content. Table of Contents. If however the internal resistance has not increased much with that slightly puffed cell, then it's still likely okay to use with relative safely, if you are careful.

As packs age, the swelling can and usually will get worse. It's basically a positive feedback loop. This pack may still have some nice non aggressive flights or drives left in it, or it could be a ticking time bomb that is primed for a thermal runaway event! Some feel once a LiPo battery is showing any swelling whatsoever that won't go away, they are not safe to use and must be disposed of.

Despite what you may have read or seen others do on the good old interweb, there is no safe or realistic way to vent or "de-puff" a swollen LiPo cell or battery and expect it to last afterward.

Regardless of excess build up of Li2O, possible delamination, and decreased ion exchange efficiency which have all occurred; if you poke a tiny hole through the cell to vent the O2, you have just introduced another problem - air contamination.

The LiPo manufacturing process is critical to a clean room environment and zero humidity. Water vapor, even in tiny amounts will quickly cause more unwanted reactions within the cell and produce even more off gassing. I've tried to vent puffed LiPo cells numerous times, even in a clear plastic bag filled with inert argon welding gas during the process.

I pressed the cell tight after it vented, and then sealed the tiny pin prick hole. Internal resistance on every swollen cell I've tried this on increased very quickly afterward during the first use, and soon the cells were more swollen than before with off the chart internal resistance values.

All were useless and dangerous afterward! DON'T vent puffed cells! Lithium Polymer commonly called LiPo Batteries require special care to safely get the most out of them. Here's all you'll need to know Here are my top pics based on actual long term usage.

Parallel LiPo Charging allows you to charge multiple battery packs together to save lots of time. It's safe provided you understand the basic concepts.