Can lipos take any pressure from human weight?

laurnts · August 4, 2016, 1:27pm

Not yet, it still have the punch and charge to 4.20V each cell. It’s just have less capacity. And yeah I am already planning to get another battery, Turnigy Graphene, but I am waiting for it’s complete fail.

JdogAwesome · August 5, 2016, 1:03am

About LiPo’s being dangerous; I do agree that LiPos can be dangerous, and if they are handled improperly, they are. But if you don’t, puncture them, short them out, or god help you, over charge them, you should be fine. Actually today I was working on a BT speaker project and I was screwing a bolt in and my dumbass forgot the lipos were mounted on the wall of the box and I screwed a bolt into the lipo which cut into the silver pouch slightly. I heard something happening while I was screwing it in and looked to my horror see the bolt going into the pouch! I quickly disconnected the battery and threw it outside. Thankfully it didn’t pop or start smoking but it did get relatively warm. Anyways the point is lipos are dangerous and need to be dealt with the utmost caution. Oh and if you ever think anything is wrong with your lipo or its possibly a danger to be using it, just buy a new battery, its not worth burning your house down to save some $$$.

maxchilton · August 5, 2016, 1:11am

laurnts:

I’m not joking, I’m serious about this.

Well at first I saw my lipo is swollen just a little bit and when I charge, it doesn’t go to it’s normal capacity. I have 10000mah battery and when I start charging I still have 25%. That means I should expect 7500mah to be written on my balance charger. Somehow after sometimes the battery voltage is close to 4.20 each but its still 6000mah and the balance charger already charging at 0.5A.

Then I started investigating my lipo pack, especially the swollen one. I started massaging the lipo and at one point when I pressed hard enough, my balance charger start to charge at 3.5A again (3.5A is my balance charger max charge output).

Since then I always try to compress my lipo during charging as that always ensure that the packs are working as it should be.

dude, i hope you have homeowners insurance.

anon46525265 · August 5, 2016, 1:34am

this makes me very uncomfortable.

cmatson · August 5, 2016, 1:39am

I would try adding a support running down the middle of your board between the packs to distribute the load.

That’s what I did with my solar powered board, because the panels would definitely break with weight, and I only had a plexiglass top.

evoheyax · August 5, 2016, 3:44am

I decided to go with wood, so I CNC milled 3 layers. 1 straight grain, 1 cross grain, and 1 straight grain with battery cutouts to give some extra height to make sure I’m clear of the batteries.

Namasaki · August 5, 2016, 4:11am

Would love to see some pics of your work

evoheyax · August 5, 2016, 4:22am

In due time. I wanted to finish it before I publish it. The only thing really stopping me right now is I’ve been waiting for 3 and a half weeks for vesc’s from Chaka. I’ve been taking tons of pictures along the way.

laurnts · August 5, 2016, 8:59pm

The thing about putting pressure or doing something with lipo is this:

If you apply pressure, be sure to know that you apply pressure on it.
If you work, touch and work with lipo be sure to know what to do incase shit happens.
If you play around with lipo, make sure to always have the sense of temperature
Always have your firebags around
Never leave lipo on flamable spot.