Tough love for the industry's lithium addiction

[Ministryofgiraffes]

All the devices I listed are powered by lithium ion batteries.

....again... i did not say they had banned lithium batteries in those areas, i said they had banned the charging of lithium batteries in those areas...i did not say they had banned the holding of a cellphone, i said they had banned the charging of lithium batteries...you seem to be having an issue with this differentiation...the 'holding'...and the 'charging'.(said jerry Seinfeld)....i made no claim about the 'holding'....only about the 'charging'...

'cellphone. laptops, tablets, wireless headphones' etc.etc. in a cabin does not automatically mean you are charging them there...

 

[Ojai Diver]

I am old enough to have dove before lithium batteries. Yes, Virginia, it is possible, and really not bad.

My old 8 D cell Princeton Tec light lives under my bed, awaiting any future deployment.

 

[Wookie]

i remember when those lights were the bomb. We had a diver surface from a night dive having been spooked by a tiger shark. He stood on the ladder and banged the crap out of it with his light, which never stopped lighting. He was warning his buddy he said.

 

[shoredivr]

Anybody comment on can (canister) lights and their Lipo batteries?

 

[michael-fisch]

Anybody comment on can (canister) lights and their Lipo batteries?

Hopefully they don't exist. All my cannester lights have LiIon cells with BMS and balancer circuits, and my 3 old Gavin Scooters are using LiFePO4 cells. Lipo batteries have a terrible reputation for reliability and burn so well.

As far as 18650 LiIon cells go, I buy either Panasonic or Samsung cells from a wholesaler I trust, since there are lots of Panasonic or Samsung marked cells on the market that were never made within 500 miles of a Panasonic or Samsung factory.
Fortunately, if you're careful, you get what you pay for and if the deal is too good to be true, it probably isn't.

Michael

 

[StefinSB]

Hopefully they don't exist. All my cannester lights have LiIon cells with BMS and balancer circuits, and my 3 old Gavin Scooters are using LiFePO4 cells. Lipo batteries have a terrible reputation for reliability and burn so well.

As far as 18650 LiIon cells go, I buy either Panasonic or Samsung cells from a wholesaler I trust, since there are lots of Panasonic or Samsung marked cells on the market that were never made within 500 miles of a Panasonic or Samsung factory.
Fortunately, if you're careful, you get what you pay for and if the deal is too good to be true, it probably isn't.

Michael

I also buy the Panasonic 18650’s if I have a choice. However, it were Samsung phones that exploded. So just because the battery technology is sourced by Samsung doesn’t mean it’s trouble free.

 

[michael-fisch]

The Samsung phones were using Li-Polymer batteries in a case that didn't allow for the slight expansion needed when the batteries started warming up.
The Samsung and Panasonic Li-Ion construction is top notch and if used with BMS and balancing circuitry works well.
If you try to cut corners, you will eventually regret it.

Michael

 

[JohnnyC]

I'll drop this again, but in here. This is basically a DPV battery, except it had more smarts to it, like NASA smarts. And it still blew up. And observe how hard it is to actually get the fire out. Wait, they never did get it out.....

If it's a true lithium battery you need a Class D extinguisher. Unlikely, but at least one dive computer went pop when someone tried to charge a Saft 14500.

Hence, throw the f*cker overboard. Make sure if it's gonna go all Great White, it can only do it in a space that isn't likely to catch fire, and can be easily thrown overboard.

 

[HalcyonDaze]

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A ScubaBoard Staff Message...

A number of posts have been removed from the original Fire on Conception thread as they are battery general in nature and have been placed into this thread

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As a personal anecdote, I have to say this discussion may have helped me catch an issue with my phone last week. Friday night I was showing an Instagram video to some friends at the bar and noticed that hitting the down button for the volume wasn't working. When I got home I opened up the aftermarket external case and found the factory-sealed back panel of the phone was popping off, presumably due to the battery swelling up. Suffice to say I did not take that phone with me on my flights the next day.

 

[Ron Lee]

Yes I understood you correctly. I should've been more clear. I also meant interconnected. I also should've added powered off of boat power with battery back up.

That seems like the way to go. My "primary" home smoke alarm is AC powered with battery backup. All the others are battery powered. My main alarm needs to be replaced so based upon this thread I need to examine whether I can get battery powered alarms that can be interconnected (by wifi?) to a master unit.