newscotland-tv

Common Weal

Dundee

I don't pretend to be the best singer but I think you'll get the point. Oh flower o' Scotland when will we see yer like again That fought and died for yer wee bit hill and glen And stand against him proud Charlie`s army And send him homeward tae think again The hills are bare now and autumn leaves lie thick and still O'er land that is lost now which those so dearly held And stand against him proud Charlie`s army And send him homeward tae think again Those days are past now and in the past they must remain But we can still rise now and be the nation again That stand against him proud Charlie`s army And send him homeward tae think again All images copyright, me.

DANGER - DO NOT TRY AT HOME - SAFETY FIRST A safety video showing just how easily these common Lithium Polymer batteries catch fire and explode. I do this so you don't have to. These batteries are in phones, drones, cameras, laptops etc etc they are the standard small grey packs - it becomes quickly obvious why airlines and postoffices don't like them (the fire can burn through aluminium tubes)....these had puffed so although showing 4.2V carried little actual current but as can be seen it's more than enough to set fire to anything in your house after burning you and filling your lungs with toxic smoke. As can be seen the critical aspect to LiPo safety with regards to physical damage is the charge state, charged batteries explode, discharged ones don't (the charged one could still boil water 5 mins afterwards). When handling, storing or scrapping LiPo batteries ALWAYS discharge them first. As we move into the Electron Age be very careful, 1 electron does little on its own but when you move loads of them they can deliver huge amounts of power. and yes i mistakenly stored fully charged LiPo batteries for my drone when i moved house and it killed all 3 battery packs....over £120 made useless by laziness....discharge before storing or they puff and there's no way to vent afetr this, they are (were) knackered.

#GeorgeSquare

A safety video showing just how easily these common Lithium Polymer batteries catch fire and explode. I do this so you don't have to. These batteries are in phones, drones, cameras, laptops etc etc they are the standard small grey packs - it becomes quickly obvious why airlines and postoffices don't like them (the fire can burn through aluminium tubes)....these had puffed so although showing 4.2V carried little actual current but as can be seen it's more than enough to set fire to anything in your house after burning you and filling your lungs with toxic smoke. This was a small 3S 2000mAh drone battery pack - the first i destroyed as a test, the 2nd just took a couple of dull blows with the hammer and the 3rd was due to the intense heat from the 2nd (they could still boil water 3 mins afterwards). As we move into the Electron Age be very careful, 1 electron does little on its own but when you move loads of them they can deliver huge amounts of power.

A safety video showing just how easily these common Lithium Polymer batteries catch fire and explode. I do this so you don't have to. These batteries are in phones, drones, cameras, laptops etc etc they are the standard small grey packs ...these had puffed (due to incorrect storage) so although showing 4.2V carried far less actual current. (and due to puffing gaps between plates unable to deliver a high "C"). (this is 1 cell from a 3S 2000mAh drone battery pack) As can be seen it doesn't take long for even a low charge puffed LiPo to catch and sustain fire when exposed to heat. This was a cheap, poor quality, low heat basic plumbers blow torch. The burnt plates were still hot enough to scorch my welding gloves even after 5 minues - this is also why fire departments don't like them much, they stay hot enough to re-ignite or cause serious skin burns for many minutes after the flames are controlled. (i'm not trying it, well maybe if i find a dead animal, on skin but i suspect it may be hot enough to reach bone, certainly muscle...you'd feel that!) The magic rule with LiPo: low charge = lower risk. Additional - keep them away from heat regardless. Other observations - they really stink when burning/burnt and the smell lingers on everything it comes in contact with. The cold vented gasses smell slightly sweet.

A safety video showing just how easily these common Lithium Polymer batteries catch fire and explode. I do this so you don't have to. These batteries are in phones, drones, cameras, laptops etc etc they are the standard small grey packs ...these had puffed so although showing 4.2V carried far less actual current. (and due to puffing gaps between plates unable to deliver a high "C"). I used the small vice to bridge the contacts and hold the cell in place. (these are 1 cell from a 3S 2000mAh drone battery pack) All that any I tried did was to get a bit puffier and a little warmer - i expect a fully charged healthy cell would puff and burst into flames if the short was sustained long enough. I gave up on these after 15minutes as they weren't even hot to the touch. The magic rule with LiPo: low charge = low risk.