🎓 Dr. Freemo 🇳🇱 @freemo@social.cleverlibre.org

@swiley My plan now is to see where this goes.. if in 3 days there is no significant dip developing im going to jump back in.. If however it shows signs of dipping as I predict it will likely be a 1 - 4 week dip, but ill just watch the news closely.

@swiley I transferred all my coins into USD_T once the china news hit and am keeping that in an ethereum wallet as well. I still think Cardano is going to make huge profits this year and over time displace ethereum and BTC. But that will take time and I suspect this dip, like the last Chinese scare, will be noticeable but temporary.

@Gina This has had me giggling for a solid 5 minutes now.

@biomedmax It isnt just ADA its all crypto. China announced a few hours ago that unlike before not just mining is illegal but rather trading in any cryptocurrency of any kind is illegal. So I expect this to cause a bit of dip for a bit.

FYI, for anyone investing in ADA now might be a good time to pull out for a few weeks until the news from China settles. I still think its the long-term win though.

I pulled out, my plan is to go back in within a few days if no dip occurs, but if one does occur ill wait it out a few weeks until it settles. The news from china I suspect will probably cause things to dip though.

#ADA #Cardano

@herag Happy to help. I do love battery chemistry talk. I have every size of every type of battery you can imagine and I dont get to use them nearly as much as I'd like.

As for the price, I just picked the first hit on amazon. Chances are you could find it even cheaper if you do some digging.

@herag You can get pretty much any battery chemistry in any size, though that isnt always useful. I have lithium-metal and lithium-ion in AA size too, but that is nearly useless.

Chances are your battery life was only 2 months because you were overcharging or overdischarging, both can kill a lithium battery almost immediately. Moving to lithium metal wont fix your problem if you dont improve the regulation on your circuit, it probably will still only last you 2 months otherwise since its not an issue with the number of cycles, you physically damaged the battery.

go with lithium metal for sure, its the better choice, but focus on fixing your battery management circuit.

Also if you dont wnat to build out your own circuit there are lithium batteries (metal and regular) that have the battery management built in. That way its nearly impossible to break them. I recently boughtthe following lithium-metal 12V battery with battery management. All the advantages of a lithium metal but with the protection and charging circuit mostly built in. Just apply 14.6V source to charge it, no battery charging circuitry needed. I use this mostly as my portable battery for radios. Comes in three different sizes, I have the 24Ah one.

https://www.amazon.com/gp/product/B0824S6LB2/ref=ppx_yo_dt_b_asin_title_o08_s02?ie=UTF8&psc=1

@herag

By the way the best search term I find is "LiFePO4 18650".. if you use "lithium-metal" the search results are sketchy at best.

@wilmhit

@herag

If your top concern is how long they last then lithium metal with overcharge and overdischarge protection is the way to go. Of course if you deep discharge one, like lithium ion, you can significantly reduce their life. But as long as they are treated well they will give you the best longevity with all the capacity of a lithium ion. For energy dense applications with low to moderate power draw they are the way to go.

@wilmhit

@herag

the ones I have, and the one I linked on amazon, are all standard 18650 size.

@wilmhit

@herag

They arent too hard to find, I have several different brands in that chemistry and size. A quick search on amazon gave this result (different brand than my own):

https://www.amazon.com/HAKADI-Rechargeable-Discharge-Flashlights-Headlights/dp/B097PHCLNT/ref=sr_1_5?dchild=1&keywords=LiFePO4+18650&qid=1632476374&sr=8-5

@wilmhit

@wilmhit the big difference is the charging circuitry. Liion and liFePO4 have similar charging curves but different nominal voltages (3.7 vs 3.2). So they arent always drop in replacable. With that said most smart charging circuitry can detect the two and charge both, even some of the cheap stuff you wouldnt expect to be "smart" seems capable

Just make sure the voltages are ok and you have the right charging circuitry and you should be good.

That said lithium ion and lithium metal are similar enough it might not be worth the hassle to mod it. But if you are building something new I'd personally always lean towards lithium metal out fo the two.

@wilmhit Its a bit more complicated than that. NiCd has memory the others dont (well NiMH has memory too but its much less noticeable). That means that when it doesnt fully discharge over time it appears as though it is end of life by having a much reduced capacity. In fact this is not a permanent position. The memory of a NiCd is caused by crystallization that is reversible by deep cycling it a few times.

In all liklihood you are seeing the memory effect rather than an end of life scenario.

Li-ion of course has the highest energy density, so that can sometimes make up for the fact that it has fewer cycles since you get more power per cycle.

Lithium metal comes in 18650 just like lithium ion batteries. In fact I'm charging a pack of 18650 lithium metal batteries as we speak

@trinsec any battery can explode if you try hard enough :)

@wilmhit by long lasting if you mean the number of times you can recharge it then its about the same as NiCd and NiMH in that respect. Lithium metal has, however, about 2.5x or more recharge cycles.

This all assumes you only let your battery discharge to 50% at most. If you discharge to 100% Nickel Cadmium actually has the longest life span.

Whats your favorite rechargeable battery chemistry.

#EE #Electronics #Chemnistry #Battery #Batteries

@djatropine444 Since the antibodies ultimately live in your blood and not in your cells I dont see why that would be the case.

@djatropine444 Would likely be doable. It acts much like a virus but with specially coded RNA.