Recent content by Batteryman1952

I know you guys think your batteries are safe but they are not. You should never put them in checked luggage or carry more than 2 of your 100wh effing bombs in your carry on. I’m a battery expert and Li-ion batteries burn down one house per month and cause 2 airplane emergency landings per...

Thank you for your offer to help.

Sorry but I think my problem broke free and floated down river.

I don't know the Lat and Lon but it's near where N. Austin Springs Rd crosses Boone lake / river.

Anyone think they could help me identify a dead animal (a cow?) floating in the lake? My house is on a cliff and there are lots of trees obstructing my view and no easy way to access the area without a boat. The animal seems to be caught in branches at the shoreline and we can smell it...

Everyone...I thought that is would be interesting for the group. Here are 5 18650's (total approx 55Wh) in thermal runaway.

The heat that is generated during discharging (or charging) must be allowed to dissipate so the insulation is bad from that perspective. As you guys know, if a battery is warm and gets too hot, a cell and then the entire battery can go into thermal runaway. The multiple 60Wh batteries in your...

Nice storage case just never put them in when they are warm. Lipo bag or not. These fires do not need oxygen and can not be snuffed out because a battery fire has its own oxygen. A sealed ammo case is more dangerous because the pressure can build up to create a bigger blast. Here is a video of...

Gentleman I realize that technically you can replace cells in your battery but this is dangerous. Please watch a couple videos on my website to see how these cells may explode. Remember that even if the cells don't flame, the vapors are flammable AND poisonous. See www.Planegard.com

Gary These photos are great and very useful. Was it a sunny day and what was the (air) temperature? How many minutes after landing were these photos taken?

That is some great thermal data. Is this typical for 15-20 minutes of flight time? Do all your batteries get this warm this quickly? I wonder if this battery has a bad weld or a loose termination. Just remember that those thermal imaging battery temps are surface temps and the actual cell...

Yes. Li-ion and Li-Po are basically the same with the exception that the Li-Po battery has a gelled electrolyte. Both technologies have electrolyte made from things like LiPF6 (a salt) and then propylene or ethylene carbonate (the solvent) or mixtures thereof. In a Li-Po battery a thickening...

This is true but the warning is specifically about children and 3v lithium coin or button cells. Children swallow them and when in the stomach or esophagus they get immediately exposed to body fluids and the high voltage starts to produce hydrogen gas and acid (-) and oxygen gas and alkali (+)...

Just wanted to add that these MSDS's are useful but don't tell the entire story. They hint to the dangers of a fire and the vapors but don't give any details. See my attached advertisement for PlaneGard. There are links to GM and Tesla that know a lot about the dangers of the vapors from a...

Any tablet or smartphone tends to get warmer when mapping or streaming. They may also get warmer in general operation (the chip is always producing heat) due to high ambient or when using a heavy cover. Charging may also add to the heat generation. See our website if you want to see what...