Hi I want to use an ultimate lithium battery in a camera trap for 30-days continuously. Some of you donât understand meaning of term cycle. Can anyone enlighten me please. Discharging a battery by 100% nets more charge over the battery’s life than only using it up by 10%. Please reconnect the proper AC adapter.” I made the mistake to have the fast charge active for some time (didn’t know it was active by default), but I only charge it from 40 to 80 so I hope no less damage has been done. He hates dealing with phone calls and troubleshooting so he’s just living with it. You can recharge it 2500 times youâve now gotten 6250 units of use from the battery. I would think you would want to keep a distinction between the two platforms? With this in mind, I am wondering what practice suits me best: keep the laptop connected to the AC grid and calibrate the battery once a month with occasional partial discharges/charges would be safe? Now. All the Best. It's not just one application; the whole computer crashes and restarts. I am using a Mobile Device Sony Xperia Tipo inside the Bus and it has to be kept permanently charged as we are using its Bluetooth capability. Thanks for the good advice. Well from first hand knowledge the quickest way to kill your Lithium Ion battery is to let it go completely dead. Please advise. It’s not like Windows where you have so many types of PC’s made by so many manufactures. A macOS update or upgrade should not BRICK your Mac! So if I understand the Table 2 correctly, the optimal capacity to charge a Li-ion battery is 50% ? Once a week? The option to report the problem is given. System Product Name Latitude E6230 ok, now you are talking. Is it that all these beta testers have certain Mac’s? See I have my Master’s Degree in Reading unfortunately not all types of reading…lol. MacBook Pro’s NVRAM can be reset to resolve crash issues as well. MS 365 no longer works. These are “green works” batteries. Usually, this is temporary since the battery performance goes back to normal after … So sad what a *** software Apple has released!!! What is the error? this is for laptops i presume ALL MY PAID PROGRAMS ARE GONE!!! Modern laptops run cooler than older models and reported fires are fewer. Assume they are all retards if you like, but expect them to: 1/ Leave rechargeable devices plugged in most of the time, 2/ Leave the battery in place when in use, regardless of being plugged in. Upgraded 3 months ago and currently on Big Sur 11.2. Don’t you think its wisest move to implement the optimum cut-off circuit in the laptop itself by the manufacturers in order to maximize the battery life? (avoid full charge to not have high voltage in the battery) ? I ju... By Ning Zhao, 15 hours ago. discussions.apple.com/thread/252050853. Does your iMac, Mac Pro, MacBook Air, MacBook Pro, or MacBook stuck on login screen after update to Big Sur, Catalina, Mojave or High Sierra? During that time, I tried the same thingâleaving it always plugged into the AC adapter that came with it which I plugged into the wall. After upgrading to Big Sur 11.1, after I upgraded to Big Sur 11.1, when I tried to copy files after connecting to Synology NAS by smb, the network connection would start to fail. Sometimes it comes back. In several articles and blogs you will read on the ways how to calibrate your Laptop Battery. If you play games, better to do this without battery. Tried an in place update iMac mid-2014 from High Sierra. A sto punto però vedendo che non sono l’unico ad avere questo problema mi vengono sempre più dubbi, non capisco se sia la scheda madre o Big Sur. He was very persuasive and assured me that charging any of these devices using this device which seems to be some sort of surge protector would virtually double the life of the batteries. 2. I’m too disgusted to go any further. i just figure that these 14.4v, 95Wh unite cost a bundle and certainly their must be a way to restore them…no? I complained, and they told me to fully charge and discharge 5-6 times as this would improve the capacity. Battery ID 1816Samsung SDIDELL KFHT82B Ya name a product after a well known hippie hang out on the Pacific Coast Highway, I know… I lived a few miles south in Los Osos in 1970… So what should we expect from a product named like this? Real news, curated by real humans. Table 3: Estimated recoverable capacity when storing Li-ion for one year at various temperatures. I had problems downloading Big Sur I rang apple support they advised that it would work on my iMac , they then advised me to download it from the app store, that worked it downloaded it in about 8 hours (my internet connection is poor max 2mb but usually 500kb. but I don’t understand my different experiences. Where is the differences? USE THE MANUFACTURER’S CHARGER AND ALLOW THE CHARGE TO COMPLETE MOST OF THE TIME. I don’t think that the article is clear on this point though. I have the same audio issue. I dont understand the table 4; many car manufactors like Tesla and Kia let the car charge the battery cells to about 4,3V. That eco-wannabe approach only confirms my statement. The resistance increase is permanent. RE: To future eGPU users — do … Everyone just focuses on quantity instead of quality. I just wanted to know the shelf life, like can I buy two batteries, use one, save the other? This should be even easier with Li-on batteries, seeing that their voltage is much easier to match with a 6 or 12 volt relay. This is so bad for a company like Apple, I have totally lost my trust in the updates and the quality of their products. Every battery is going to act a little bit different. They dont give a fok about you. When is the optimum time to charge it up? 1. I’m have a similar problem with Word and large files. Now for the lifetime calculation, what is the end of life capacity used? Question on using Li-ion battery for industry use as back-up battery. I am afraid you are bit too technical for me! Would you have any recommendation on where to buy one? I pull out the battery whenever I have access to power outlet. I have an iMac mid 2017. I suspect itâs that simple. Politely describe your problem and ask to have it escalated. What do I do? I have a question, so if the best percentage to store a lithium battery is 40 percent, why is it the the longest cycling is 65- 75 percent? Don’t do this install close to a deadline :-). Perhaps some device manufacturers are preventing deep discharges, so the advice to not discharge too far may need to be taken with a grain of salt if you’re using a device that has already taken this into account. If I had no choice but to charge it to 100% every time, what percent should I discharge it to? Applying the peak charge voltage on a subsequent charge will restore the full capacity. Tempature is cool and humidity is about 20%. Storage will not rejuvenate or recover capacity. Sorry, in my last post, the correct link is: I expect to get 20 years out them as they have 25 cycles on them now after 2 years.. Now when I try to upgrade to Big Sur it downloads but then says that the computer is ineligible to upgrade. BUYER BEWARE! I getting 2x 12v 100amp lifepo4 battery in camper and controller I can set charge voltage level. Full discharge (to 0 volts) should not be possible and does cause irreparable damage. However I do move it between my office and my deck and don’t want the hassle of shutting down between those moves so my battery remains in my laptop at all times. If you would like more information on this issue, I wrote article on it. I also wanted to point out the results of cycle life on fast charging. It uses very little resources and has a very intuitive user interface. === Great information, historical, evolving to present-future. What this usage implies is that the phone will be connected 100% of the time to its charger. Eventually they should offer to fix it without charge. All the best !! But the article seems quite clear to me, so the following is an effort to express some key points in an alternative way in the hope that theyâll be more clear. (100% means = what is the voltage range and for 0% = what is the voltage ). Having said that, there are such systems on the market, because demand, not technology, drives these kinds of things. Help. A charge rate of C/2 = 0.8A would need two hours ... to fully charge the battery from an empty state, if supported by the battery. Maybe phone don’t charge to 100%? Dec 3 21:02:21 laurels-Mac-Pro-102 osishelperd[11584]: Calling: /usr/sbin/bless “–setBoot” “–verbose” “–folder” “/private/tmp/apple_preboot_disk2s3/50D5076C-BD34-436C-B6DE-CD5694A78380/com.apple.installer” “–file” “/private/tmp/apple_preboot_disk2s3/50D5076C-BD34-436C-B6DE-CD5694A78380/com.apple.installer/boot.efi” “–apfsdriver” “/private/tmp/apple_preboot_disk2s3/50D5076C-BD34-436C-B6DE-CD5694A78380/com.apple.installer/apfs.efi” “–label” “macOS Installer”. *How bad is it if it runs down to 0 charge? It’s a USB stick that switches power on and off and keeps the SoC at the level you set. As the most revolutionary update to Apple’s operating system in years, the macOS 11 Big Sur is a major milestone in macOS history. Are current smartphones’ batteries are different from ones that are described in the article? I have owned Apple products for years, so Iâm very unhappy to find out they lied to me about a product I purchased. In addition, surely apple running speech recognition on your computer is a privacy issue and something that should require user consent? “Turn on MacBook Pro and press down Command, Option, R, and P”. 8 months ago. I go over the issue in the article below. I didn’t see any info related to lifepo4 25% 2,500 62,500 (100 * 0.25) * 2,500 Thank you Rajdeep. Try installing on an external hard drive. share. But does 50% DoD mean cycling the charge between 50% charge and 100% ? I know this is a long comment but I hope people find this helpful. Newer laptops now have energy managers that regulate the charging and discharging of their batteries. 50% DoD). If I were to slow performance there is a lag in response. After discharge the battery should be fully charged back because, 2.Prolonged discharge state of the plate causes sulphation, 3. Pretty obvious that Apple isn’t focused on the professional user anymore. For portable use, you just want to recharge to 50% if it gives you enuff life, or whatever level does give you enough life. It’s really annoying! They simply make more money selling you a new machine. Why wouldn’t a Targus Universal Charger (for example) have a control module capable of doing the control just as well? Proof lies in the numbers itself: 100% * 500 cycles = 50.000% total charge This means in reality stress is limited, current is tightly controlled to avoid overheating, and the damage is minuscule you may not even notice the change in capacity. What should I do? System Manufacturer Dell Inc. The voltage for my previous phone which i need to send back at 61% battery is 3920mv so 3.92V but on this one (due to damage i suspect of being stored at 0% and sleep switch activated ) at 61% reads 3855mv (3.85V) is the difference of 70mv (0.7V) a significant difference? I am being told orally by the car company that there has been no damage to the car’s battery (about half the value of the car), and that there is no chance of any copper shunts having developed, and that the car could have continued to sleep for another 4 months until any damage would occur. So charge it sometimes, if you desided to store it (again - no point in doing this). Display is always 0, the lowest brightness possible. First WAIT! If we have a charger ready and need to know when to charge to prolong life, you can’t read it from the table directly. This issue started around 2:00PM CST on Big Sur Launch Day. I haven’t found a solid chemistry yet that has… 3. I have concluded that the whole idea of obtaining maximum life and output is not as relevant as reliability and consistency- realistically nobody keeps devices that long any more. If you were following closely, we disabled them on Catalina because they caused a crash. 2. Thank you for answering edward. As I’m not a computer geek and expected to be using computer for my work and not spending hours getting it to function!!! I’ve tried numerous times and they absolutely will NOT help in any way. I hope my laptop never needs servicing even more now. They’re pretty close ( ~ +- 0.01V) and also require a certain ‘settling’ time.before the readings stabilize. I can’t enter no more in my account on the desktop version of the app (but I can enter and use it on the browser, so it’s not an account problem) , and everytime I try to enter in the app it always says this error code: 2:-1001. I upgraded to Big Sur and found that my multiport adapter no longer works. =>Mara If you have a typical charger it will work at any voltage from 90V (Japan) to 240V (much of Europe) so it will ride through voltage sags and spikes OK. A surge protector will make it more resilient to voltage spikes. My question is. This is the first time working with the camera since Big Sur. After that the battery should be placed in the laptop and it should charge normally. Use quotes for once in your life. Further reading: Common boot problems after macOS Big Sur update. And vote with our purchase dollars whenever an opportunity arises. Sorry again for my confused state of mind…lol! 3 - Before remove my battery, do I need to charge him between 40%~70%? It will be used everyday and the battery will need to be used on most days. A handful of years ago it was clearly bad…. It worked for me. “. some will run for days again others maybe only a few hours. On Catalina everything was great, now after upgrade to this s*** after a week battery has only 80% of health and still dropping. macOS Big Sur 11.2.2 Update (20D80) is Live! yes from 2010 comments) and still i was not able to get any answer. Several days after I upgraded my iMac Pro 27" 2017 (3GHz 10-Core 64 RAM) to Big Sur, (11.0.1) it started crashing frequently (once or twice a day). Will room temperatures be safe ? Other users have reported that after installing Big Sur, their Mac will be in an endless boot loop. Came here to learn how to look after the battery on my new PS Vita. Again, great article, and first free thing I’ve ever heard of from a university. . I still find myself draining the battery before I find a charger, today it was too many birds and not enough pigs, but I’m getting better. @Seth. My imac (2017) got really slow after Big Sur. When I reach my destination I can then use mains. I have developed the smart charging adapter which prolongs battery lifespan more than 2 times. (See BU-409: Charging Lithium-ion), Figure 6 illustrates dynamic stress tests (DST) reflecting capacity loss when cycling Li-ion at various charge and discharge bandwidths. This updated has made me less productive, because I usually run a dual screen, so I can look at multiple spreadsheets at once. I have heard mixed opinions both here and other places about the validity of exercising a lithium battery, but the technique suggested to you sounds more like a NiCad strategy to me. It was bad enough that I reverted back to Catalina for now. But it can be as high as 4470mV. I lost a couple of days of production trying to figure out what was going on and then backtracking to the old setup. The idea is to keep it just above freezing temperature but not to freeze your battery. Is this due to newer batteries behaving very differently? You really may have to retire the venerable hardware..all things expire eventually. Of course this doesn’t apply to 100% cutoff, because constantly staying at high voltage alone will kill it. “You were right about one thing: you should have âlet my little statement dieâ instead of responding with your angry screed.”, Yeah, try to sweep the fact under the rug that I cleared up your whole misconception about deep discharges and the erroneous “advice” you gave with it. It was previously running the latest version of Catalina. Hello David, Is it worse for a lithium polymer battery (phone or laptop) to be charged while the device is on? I thank you in advance for you help Problem is there is probably no other reliable company anymore. I have had very very few of these lithium cells which lived up to their stated life expectancies. So the batteries should only be stored in a fully charged condition and the charge should be topped up from time to time by taking the car out to charge it with the alternator to compensate for the self discharge of the cells. If it is better to have the battery charged to 40% and then stored while on main power, why do the laptop manufacturers not program the BIOS to have an option to charge to 40% and stop? Great those updates… even Windows didnât cause so much suffering. I heard the battery life reduces if we keep the charger plugged-in (charing) after the battery is 100% - is it true? repeat cycle! Between each work interval I close the lid to hibernate. I may wind up maybe using them only 4 times a year at most as a week end warrior. On October 8, 2015 at 2:15am One hour before traveling, the user requests the “Full Capacity” mode to bring the charge to 4.20V/cell. (I can log in to the admin account but then infinite loop hell starts all over again). Very disappointed that Apple would sell me a product that is older than the labeling indicates it is. causing a complete re-login. If after a few hours pass and the progress bar has not moved go to the next step. So for all the people getting issues with older machines and asked to pay replacement motherboard DONâT DO IT. How many of us have had the experience of âtaking care of â a battery by keeping it constantly charged only to discover the capacity of the battery has diminished rapidly anyway? Completely dead, and nothing I and the Apple store have tried fixes it. This sucks. After the attempt to upgrade my iMac to Big Sur, it did not turn on at all. I will wait a couple of months before i try again unless someone has an easy fix I have reinstalled Bi Sur maybe 5 times. 1. Hey guys. Thanks in advance. So it seems if you connect cells in series, you find the Wh of each cell before adding it. When done, store it partially charged until needed for use next time. Two days and counting. Thanks BU and Cadex for this usefull information. “A deliberate full discharge and recharge every 30 charges corrects this problem”. Many users have reported that this fixes the issue for them. This will allow you to see if there are any connection issues … For last 3.5 days, Apple Supportâs suggestions were to wipe and reinstall clean OS, but itâs only possible to install the original High Sierra that came W/ my machine and then gradually update back to Catalina but data will be lost permanently. But the LED indicator in the mag-safe 2 connector remains dark. So what is 40-100% then? Wait! Too much information, not specific, hard to find information that is relevent. My laptop is always connected to the power grid except when I travel. I’ve had the netbook about a month and have not installed the battery. being an electronics Engineer . I tired it on my Samsung smart phone too it is giving back same when I buyed it 1 year ago. Wouldent this destroy the EV battery within about 2 years? Why my battery dont charging (0%)? My boyfriend (a chemist/scientist) says this is complete untrue with the current battery technology. Pages will not print text. I’ve just finished reading the article and all comments. I gave up in the end…and now backing up TM hard drive via USB. Everything is gone….and itâs not on the cloud either – that was the first place I checked. Click on Window from the top menu bar. 1C is equivalent to 1500 mA. Would you agree with this supplier’s instructions? I have discharged my battery below 5% about 10 times in the first 3 weeks and let it run to 0% twice. The practical sweet spot seems to be 4.1v and dont top up if you don’t have to. I will NOT update the internal drive on the Macbook Pro until my 27″iMacs boot from the heretofore mentioned external drive. They may rightly claim a far more advanced design in terms of battery management. Is keeping battery at 100% as bad as deep discharge to 0%? Have I been had? Both seem to install OK, but will not reboot. Are there any fixes for this? As a simple guideline, every 70mV reduction in charge voltage lowers the overall capacity by 10 percent. Hi I was able to plug in the docking station to windows 10 PC and the monitors work as expected. I just wanted to say thanks to all who contribute! I’ve got the mid-2010 mac mini running as a replacement while the 2018 is out for service. If this works reboot again to see if you still get stuck. I’m interested to learn if this is the case for all batteries or only lithium ones. You should prime the battery the first few days though by draining it completely and charging completely. Is there a simple measurement I could make - that would give me an indication how much life there is in the battery pack? @sakthivel: There’s a multitude of different li-ion battery chemistries, each with different maximum and minimum voltages, ranging from 2.5-1.5v for LTO (Lithium Titanate) all the way to Li-CoO2-NMC with 4.35-3.0v. Batteries are an inherently weak technology that struggles to keep up to the demands of the power consumption in wake of constantly evolving technology. (Then communication protocols changed from analog to digital.) You clearly are no lawyer and you also clearly lack proper common knowledge: “If a defective product causes an accident that results in death, injury or property damage, the manufacturer, distributor, retailer and lessor of the product may be liable for the damages caused by the product. This got me thinking, which is worse for a sealed smartphone battery, keeping the battery full and plugged in most time when possible (with twice a day discharge to around 50%), or very frequent shallow cycling anywhere between 20-80%? Lt = Lt (New) if C<=300 charge cycle I am looking at the total amount of energy (in full cycles) I get before I hit 90% battery capacity: 75%-65% = 0.1 x 9000 = 900 full-cycles Software != Hardware. Big Sur – Installation failed An error occurred while installing the selected updates. After downloading, I initiate the installation and after 5 minutes or so the machine reboots back to Catalina 10.15.7 and the message “Your Mac restarted because of a problem” appears. In terms of longevity, the optimal charge voltage is 3.92V/cell. Does anyone have any smarter methods of easily controlling the usable voltage level? Since I plan to keep the phone for a while (I doubt I’ll switch in 2 years), I want to try and be careful with the battery. They just called and said that they need to replace the logic board for $400. Allow the battery to charge fully ( with your Laptop off ) Once charged use your laptop on battery mode till it discharges and you get a pop up suggesting that you have to charge your battery. How long would it last? 10x today. I’m not sure I was clear myself though. If a battery is in a device, the device always has some sort of battery management system. How much of the 7kw-hr Powerwall can one discharge before significantly limiting the battery’s number of cycles? Does anyone know if the pack is good or should I return the drill to Sears. I will have access to a power source about as much time as will need to use the battery. The most they will let you do is select between “optimize for runtime” and “optimize for battery life”. what i’ve understood is this and i’m not even sure its correct. I think you’re confusing charge levels with depth-of-discharge. How much time battery(2080mAH) take for fully charged? This may be due to my recently acquired habit of charging it every night. After three and a half years it still gave 3 hours and 30 minutes on battery. Some of the UI changes are nice, performance wise didn’t notice a whole lot. - UPS use (eg, as desktop computer or low-usage phone days) (3.92v or 50%) ), but that route does not work anymore. This is mostly due to the fact that your Mac is performing some background tasks and indexing after the update. I don’t do games, but run diagnostics and/or math related calculations, sometimes charts/graphs. It’s good to understand a little bit of the science and practices of batteries and long-term storage. Luckily they got my ssd out and said all data was intact. Me too - I want my cells to remain healthy for as many years as possible, and thatâs usually much more important to me than availability of full capacity. In either case, the end-result is that you have information in your registry that are no longer needed. Click again to stop watching or visit your profile to manage your watched threads. The laptop will keep charging the battery as soon as it losses a little capacity and will eventually reduce the battery life expectancy. Secondly, the number of charges is determined by using an arbitrary value of battery life. Good point - read and think through the article before asking a question that was already answered. (The number of cycles is *dependent* on the charge/discharge rate). Could you please explain: which mechanical parameters describes aging of batteries? Also, is there an ideal range to charge/discharge the battery in e.g. How long will the battery life last? Like put inside a drawer? With that kind of use, I would recommend to recharge the battery the day before your coach / train journey. On the second bike we had to wait for the factory to produce the batter! if you are mostly on the PC it is better that you take out the battery and store at 40% to 45 % and store it till you work on your Laptop over weekends Once charged to 100%, power your laptop from the battery till it drains and again charge to 100 % preferably with your Laptop off. Iâve used CleanMyMac X to uninstall it and wonât make that mistake until theyâve fixed it. Guideline: Every 70mV drop in charge voltage lowers the usable capacity by about 10%. charger:5.0v=550mA (50/50Hz 0.2A). For the first 2 years, I used to keep my laptop plugged in all the time with 100% charge state. I know not smart but it was a suggestion I read before I read the article. In addition keeping the battery topped off is contradictory to the information contained in Table 3. so the correct link to have access to download InstallAssistant.pkg without error is : If you intend to use your laptop charged in for an extended period of time, remove the battery from it at 40% capacity. My mobile accepts charging both using AC adapter or USB port. Can someone give me some feedback related to BATTERY LIFE in terms of wired vs wireless charging (fast charging disabled)? Since the logic board won’t take the firmware, it’s considered a hardware issue. Now i have rolled back to 10.15.7 on my iMac 2020 27″. Not sure how to get around this error. Was storing it six months too long? I hate the new calendar. That is clear from the article. http://www.nature.com/nmat/journal/v12/n6/full/nmat3623.html, “Here we report a memory effect in LiFePO4âone of the materials used for the positive electrode in Li-ion batteriesâthat appears already after only one cycle of partial charge and discharge”. What should I do then with my Acer Aspire 5715Z. 75%-25% = 0.5 x 3000 = 1500 full-cycles Several commentators have confirmed what I long suspected: that a smart charger will detect when a battery is full and dial back the voltage. I wonât do so either until I hear of some sense of stability. And I really enjoy developing on my laptop. It’s not life-threateningly important at the end of the day, but it is curious. It also started to restart if I play a video online. How to Fix AirDrop Not Working on iOS 14 and macOS 11 Big Sur Issues By Alice Yang ... AirDrop will works fine even though the MacBook or iMac display sleeps as long as the computer itself has not entered sleep mode. I can open in safe boot, but that does not solve problem. I’m going back to Catalina. The first “85%” should be “70%”, to be consistent with the graphs. - DL, Would this product be of any use?
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