If you don't want to build your own fire proof RC LiPo battery storage container or convince your better half you need a shiny new BBQ so you can use the old crappy one for your RC LiPo battery storage, there are many options you can purchase as well. You'll sleep better at night and while away from home knowing your LiPo's are in a fire safe container of some sort at least I sure do. I'm of course very glad they were in a metal chest when it happened and not a wooden or plastic one. I have however had two separate occurrences over that decade+ where worn LiPo power leads accidently shorted together, but no fire only a couple ballooned hot packs that vented and smoked. It's very unlikely a LiPo will catch fire while in storage, but if you are the type of person where the only luck you have is bad, it's not 100% impossible.Īnecdotally, I've never had a LiPo erupt into napalm while in storage over the past 15 years. In short, the container must be made from a material that doesn't burn while it contains rapidly oxidizing LiPo electrolyte goo! The options are only limited by your imagination and of course that your RC LiPo storage container will properly contain a flaming LiPo or a few LiPo's if they were ever to go all out napalm on you. I also mention in that LiPo safety section other good low cost RC LiPo Battery storage ideas such as concrete blocks, repurposing old BBQ's, clay pots, low cost army surplus metal ammo boxes, or making your own LiPo storage containers out of cement board. Never store a LiPo in a hot car or hot shed for an extended time, that will certainly cause damage (puffed and may even vent) as I explained on the LiPo battery page, but it's worth repeating.įor optimum battery life, store your RC LiPo batteries in a slightly cool room (about 20C / 68F) if possible, 40% to 80% relative humidity, at about a 40-60% charged state. I personally follow as short a time frame as possible and only charge up my LiPo packs just before heading out to the flying field meaning I never let packs sit fully charged overnight if at all possible. You are likely okay to store a fully charged RC LiPo battery at room temperature for a day or two without doing too much damage. I cover this topic in more detail on the LiPo Charging Page, but it's worth repeating since it's such a common question. You must store them charged, but not fully charged either that will also degrade and oxidize the cell matrix or cause electrolyte gassing.įully charged LiPo batteries are not happy and must be used soon after they are fully charged! If you leave them for a number of weeks or months in a near fully discharged state (3.6V per cell), chances are they may be irreversibly damaged. LiPo batteries are actually very good in this respect and self-discharge much slower than most other rechargeable battery types, but they still do lose voltage potential as they sit. Best Storage Voltage For LiPo BatteryĪs batteries sit, they will naturally self-discharge. 3.6 volts is the number given by many LiPo manufacturers as the absolute minimum long term open circuit resting voltage. If your RC LiPo batteries are stored for any period of time in a near discharged state, you risk irreversible LiPo damage as well. It will have reduced capacity, puff up or not be able to accept a charge or deliver current after a charge due to cell oxidation and/or electrolyte gassing / decomposition. Advanced - Learning 3D Aerobatic Flying.
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