This can awake your battery. I would like to know if I can fully charge my electric board scooter that I have in Spain that I use for 2 or 3 months a year before leaving it unused for 9 months or is it better to fully charge the battery a 36V 6Ah Li then disconnect it from the scooter until the next time I use it? Still charging at 1 bar showing on the display. A partially charged battery being plugged in can result in the cutoff being low enough to damage the battery. Bottom magnetic firing button, the locking ring is NOT reverse-threaded Locking ring material: Polished stainless steel Silver plated copper battery contacts Comes with a hybrid adapter and a 510 drip tip Houses single 18650/18500/18350 battery (batteries sold separately) 22mm external diameter 18.6mm internal diameter ========================================================= Connection Threading 510 Telescoping Mod No Variable Voltage (VV) No Variable Wattage (VW) No ================================================================ Defeat 2500mAh IMR 18650 3.7V LI-MN cant find this battery on web search can I take it that you are from the USA? I don't have any universal charger or any solution to try to charge it. The batteries you have for the e-cig have a turn on / off sequence 5 pushes in 3 seconds or less will turn the device on (push on/ push off non latched)and the same will turn the battery off..the battery also has a fail safe It will auto shut off if the button is depressed for more than 10 seconds (could be 7/8/9 seconds depends on battery type eg.ego. Battery was performing poorly needing daily recharges even with little use. I've just read that heating the battery with a hairdryer until it is nice and hot wakes it up. I want to use power tools with external batteries, but the three contact tools are designed not to work without input to the central contact. Literally. WebFigure 1: Discharge voltage of lithium iron phosphate Li-phosphate has a very flat discharge profile, making voltage estimations for SoC estimation difficult. Do not boost lithium-based batteries back to life that have dwelled below 1.5V/cell for a week or longer. And following up, how best to dispose of them? All restored packs were returned to service and performed flawlessly. Comments are intended for "commenting," an open discussion amongst site visitors. But when measuring between the negative and positive terminal AND the middle terminal (cell phone battery), it showed 1.09 and 1.04, respectively. I don't know how to test its voltage. the battery works now with the drill. ), all will lose capacity over time. is because the battery chemistry changes after it's discharged and unused too long, making it dangerous to revive or use. Any ideas what happened and if I can do something to get the battery working again? It took probably 2.5 hours to fully charge which is a lot longer than normal, but it worked and I still use it sometimes about a year later. hello , that feature that you say is a BMS (battery management system) right ? 2. LCSC---------------------------------------------------------------------- XT60 - http://bit.ly/2mtWmU3 Stand-Off - http://bit.ly/2z8qpDU LCSC 8 My thought is that the charger sensed the elevated battery temperature right after use. I applied my 19v charger across it's terminals (after unplugging from board) for a few mins. I tested with a multi-meter on the motherboard points where the battery connects to whilst having the charger connected and my old battery shows two pins at 8.0V and two at 3.5V whilst the others show 0V. thank you. Just brought two efest 14500 protected batteries back to life. Very rapidly the voltage of the dead/sleeping cell will go up. I don't think this is possible. I have a Chinese made leaf blower. I think the voltage cuts off at 3.5V with samsungs switch so possibly it dropped to 3.4V min but what damage capacity self discharge etc would there be in this state? To cool phone down I stuck it in freezer and forgot about it. Thanks battery university for this priceless piece of information, saved me bucks for a smart charger or God knows what else I was gonna spend on to get out of this situation! Battery Tender Junior 12V Battery Charger and Maintainer: 800mA 12 Volt Battery Charger for Lead Acid and Lithium Batteries - Switchable Battery Charger for Powersports - 022-0199-DL-WH The Battery Tender Junior 12V Battery Charger and Maintainer is a handy tool to have for any lead acid or lithium battery. The voltage out put is currently zero but on reading what I can there seem to be hope on making them reawaken. The battery is supposed to recharge in 90 minutes. Most battery chemistry is NOT reversible (and manufacturers warn you not to try to recharge them as they may burst). It's Effest brand. Don't really want the cadex item unless guaranteed to work. Never charge at freezing temperature. Discard the pack if the voltage does not rise to a normal level within a minute while on boost. Hold for 5 seconds, let off, wait 5 seconds, and repeat. The no name batteries also have dents in the caps on the positive a negative where they plug into the vape. Any advice? and is it reversible by any method? Charger seemed to charge (light flashing normally, etc) but after many days of trying, no change. Charger didn't register them. Thanks, P.S. When I replaced it, the charging LED did not even come on. Made the mistake of plugging in the cord to the output 19v, 3.5A instead of the input 14v, 1A for less than a minute. BU-410: Charging at High and Low Temperatures, BU-413a: How to Store Renewable Energy in a Battery. It has about 200ma left out of ~600mh max capacity and will not power up my Cree P4 LED flashlight at all while the other 14500 battery will (even a 1.2NiMh battery doesn't have problem powering this light). If Li ion batteries become unpredictably dangerous if left discharged too long, it would seem that no "found" batteries (e.g., old laptop unused for a "long time") would be safe to use. The battery is a Sony camera battery NP-FR1. How do you estimate when a lithium battery is at 40%? Often I get frozen cells (showing 0V) to work again by putting it in a universal li-ion charger several times. Boosting the charge current is not going to speed up the full-charge status enough, apparently. It was working fine. But reading your problem description, I think your pack is broken, because one of the cells is going out of line with the rest of the cells. Is there anyway I can fix it? (I'll come back and check) If the charger is out of warranty I'll have another idea to prolong your device life and speed up the charge. The charger flashes a green LED while charging and goes steady when charged. If all you go on is variables, you won't know. As a rough example, if your battery pack normally lasts, say 10 hours under continuous use, you'll reach 40% of usable capacity after six hours. Li-ion Thank you. For a little while, running off the battery until the laptop turned off, close the lid and let it charge overnight improved the battery status a little, but the wear percentage had gone up to over 90 and the charge wouldn't even reach 50%. Whenever completely charged, the charge current has to be shut down. You can power another project like a Mintyboost at the same time by connecting to the LOAD output port The originals are rated at 3.7 volts. Hi @AlexA, did you have any luck finding a solution for your SeaBob? The replacement cost of the pack is around AU$10K so I am looking at way of getting the batteries back to life, cognisant, of course, that he who gives can also take away! I had suffered the same "battery dead, not charging after complete discharge" scenario some two weeks ago on a brand new hp06 battery that had barely lasted a month. Can it be woken? P.S. I knew the battery already had a 43% wear (HWmonitor) and now shows (HWmonitor) 15% wear and 31 % charge but ii dont charge and dont last turned on for 1 sec. All restored packs were returned to service and performed flawlessly. After triggering a stop and starting the discharge cycle, the two better ones displayed a capacity of 0.7 Ah and 0.3 Ah - much lower than their rating of 2.4 Ah to 2.6 Ah. Please don't throw them away. for best life, store them in refirgerator. Im a bit upset that her small indoor holiday scooter Li batteries wont charge. some mods only accept non protcted batterise, and some with battery protection will accept protected batteris I have many modss i mainly use a vamo with 3.7v non protected flay top Art :). It seems to have four terminals on it. Full charge takes place when the battery extends to the voltage limit and the current drops to three percent of the rated current. What's up? I got the battery from Amazon. Battery companies recommend against such parasitic loads during the charging process, since they lead to mini-cycles. I decided to crack it open and get the battery out to check if the battery or the circuit has an issue. I charged my Sony Camera li-ion battery with one of these new adjustable pin universal chargers and now the camera does not recognize it, it's giving me a message "for lithium battery only" and switches off. How do you know if the mechanical mod has a built in battery protector, and whether or not it only accepts protected or non-protected? Take a technology that is very very difficult to get right then after spending hundreds of millions of dollars on research and it still not very good, knowing people want to use it simply go ahead and put it on the market. Search online for new or good used batteries or a local computer repair shop. Often this happens with heavy discharge use. Another 20 minutes and still at one bar. How does Internal Resistance affect Performance? The replacement shows two pins showing 8.05V on whilst the others showing 0. It is up to 50% after 2 hours in Windows. They are now fully charged and seemingly restored, and without incident. But maybe that was devices and the thermistor / thermocouple in the tablet etc. After about 20 minutes in the vape it started to show 1 bar that meant they are charging. BU-602: How does a Battery Fuel Gauge Work? A higher current charge may, however, rapidly fill up the battery to around 70%. We seem to have fallen into the trap of none use. It came with a wall plug and a 12v adapter. If a guy wasn't careful he could learn a lot from you guys. Please I'd appreciate. Yes, some people many people have been lucky when they have tried to rejuvenate batteries in simple ways. Lithium-ion truly does not have to be fully charged; a partial charge is the most suitable. To boost a battery you use a healthy battery of the same sort to "wake up" a dead cell. I suspect the issue was with the power controller on the pack or in the laptop, and not a self-draining cell. Watch on How does a lithium-ion battery recharge? I worked in an electronics store for a few years, and lost count of the number of customer's 'dead' batteries I got working using our 2A bench power supply. I plug in the AC and the battery takes a 'full' charge. Does that happen in only certain battery formulations (and which?) Please suggest what should i do now. Please help. Below 2.0 V, they do not seem to maintain the voltage, probably because it takes very little charge to get to 2.0 V. The next step is to put these through the Lion charger and measure their capacity. I have a number of Wahl Arco Se cordless clippers and even more of the Type 1854/1855 NIMH batteries to go with them. Thank you for this article!! A few lightweight equipment hold charge during the ON situation. Put on some charge to a discharged battery prior to retaining (40-50 percent SoC is more preferable). Better idea than blasting with a high current IMHO. How I did it was to use a computer power supply and use the 5 volt power rail. it saved me fifty dollars and reduced waste. Hello, I left my HP pro book 440 G2 on hibernation for few days out of town and came to meet it drained and won't charge. Bring nearly any type of battery back to life so it's just like new again? @ Older than Dirt: I just happened to see your 5 day old post and got interested. The problem (?) I have 2 battery packs and both are asleep. Thanks. My intention is to try and wake the battery from its slumber and then once the voltage is back over 3v, put it on a normal single cell LiFeO4 charger. Woke it right up. Why does Pokmon Go rob so much Battery Power? Would I have to buy new one? You should stop using the charger and/or battery in the event the battery starts becoming too much warm. My wife is in desperation as all of her 5 batteries faulted on the same day which is very curious . If my battery pack from cordless tool was affected by water, would that cause the li ion batteries to go into hibernation mode? They are nunchaku vapros brand for ecig. Simple explenation. What's the voltage of each one after the charge? This assists in easing the voltage stress. May have been a risk, but saved alot versus replacement. I had not thought of the freezer/refrigerator method of restoring charger's function. I have a Sony xperia m phone. This thread is over 6 years old so my answer may be the only one you get, lol (BTW, I'm older than most of the dirt in my town too) I'm a troubleshooter from waaaaay back, so here goes: It's most likely the charger, not the batteries. (Ever look inside a laptop battery? Segway battery drained completely down now won't take a charge. BU-104a: Comparing the Battery with Other Power Sources, BU-104c: The Octagon Battery What makes a Battery a Battery, BU-105: Battery Definitions and what they mean, BU-107: Comparison Table of Secondary Batteries. Several years ago I piurchased a large number of 2 cell packs useing 18650 c ells that had been shelf discharged, many to below .1 volt so none should be restored according to this article but I removed the cells and started charging them at .01c (have since leared that .1c is ok) then at .1c till they reached 4.1 volts or failed to charge. It's a brand new battery fresh from the store, and although they're sending me a replacement one anyway, I'd hate to waste a salvageable product. I know that it could have lasted even longer with the laptop sitting idle, but I wasn't so patient to wait for a slow discharge. Or it doesnt get enaugh juice from the charger to keep it at the 36-37v range ? Didn't charged the battery at all and i tested it on a friends laptop and it pop up a message "no battery" it doesn't recognize the battery. Figure 1 illustrates the boost function graphically. Best to do with these kind of battery / accupack is: connect to charger and plug and unplug the charger several times. The frozen things dissipated the heat very quickly and saved my laptop. The unit comes with a handy flashlight; unfortunately after placing the unit in my lunch bag, I think the flash light accidentally came on. Did not time it so I'm not sure how long. If disposal is the only option then how can I do this safely and where ?? Some of the batteries are coming in from the supplier completely discharged (less than 1V), while others in the same batch are almost fully charged (~4V). Both cells are in danger of damage or even fire or explosive like venting also with fire! The battery voltage read 0V on a voltmeter and would not take any charging current when a 4.2V power supply was applied to the terminals. 8. I always try to use some good quality silicone wire as it is softer to handle and can handle high amps and high temperature I soldered 3 wire to Here it is: Choose either (1) to buy an expensive smart charger (like Cadex, above - no , I don't have any stake in the company); or (2) Replace the battery. The cells became moderately warm at the limit which was about 0.125 mA of charge. When measured with a good quality volt meter one cell read 1 volt and the other read 1.2 volts. I've got a long spent li drill battery (or charger) and I would like to restore it but don't want it blowing up while using it or charging it, or just sitting around or being jostled doing an imitation of an old iPhone battery. Car fires may be dramatic, but still no fun. Phone shut off and was burning hot. Always charge with a modest temperature. We use 3 LIR2450 coin cells in a portable instrument. Despite the fact that the battery gets to the optimum voltage more rapidly, the saturation charge normally takes longer time consequently. I have two paralleled 3.7v, 2400mAh each, with a thermistor that reads 3.4v and will not charge any higher. 10. Used some force to push power socket in place and used a screwdriver to insert the wire in place Note - Please see the images for better unders Any help would be greatly appreciated as I cannot return the battery back. When you charge a lithium-ion battery, lithium ions are pushed by electricity from the cathode, through the microperferations in the separator and an electrically conductive fluid, and to the anode. Whenever lithium-ion batteries has to be kept in the charger for functional ability, some chargers implement a short filling charge to pay for the little self-discharge the battery and its shielding circuit take in. I have designed a system which uses a 7.4 V, 6,6AH Li-Ion battery pack (18650) in the configuration 2S-3P. it started to charge. BU-415: How to Charge and When to Charge? I then could not find any plugs for a nine volt battery as I heard that can work. I recently sold a few and the customers said that they failed to charge. The battery receives a bit of peak current pulse and can wake up with after receiving some of these peaks. Took charge nicely, 10 minutes later, burst into flames, melted nearby equipment, burning plastic released toxic fumes and 4' flames with nasty black sooty smoke. It is a flat top. When recharging, such a cell might become unstable, causing excessive heat or show other anomalies. The overtemp sensor might very well indeed be near the battery, but an overheated charger will raise the battery temp as well. 3P3S) opened it up and measured a respectable 3.5 V on batteries 1, 2, 3, 7, 8, 9. #4 did not go above 3.85 V. The other two stopped at 4.1 V. The Lion cell charger was thus unable to trigger a stop, as it never reached 4.2. While doing this, both batteries became warm, but not quite hot. A battery is made up of an anode, cathode, separator, electrolyte, and two current collectors (positive and negative). Some battery chargers and analyzers (including Cadex), feature a wake-up feature or boost to reactivate and recharge batteries that have fallen asleep. All the stuff you don't want to read or try to understand is exactly the stuff in need to do to prevent a serious accident. Actually, it is far better never to thoroughly charge just because a high voltage strains the battery. Just following on from my earlier post, On May 24, 2017 at 7:48am, just thought I'd let it be known that the technique worked for 6 out of the 12 cells. Deciding on a lower voltage tolerance or getting rid of the saturation charge completely, extends battery life although that lowers the back up time slightly. This permits the battery to attain the established voltage limit, and current saturation point flawlessly. I had a related overheating problem with a laptop. Any advice? The power supply may clamp, but that provided enough charge to reactivate the battery protection circuit. Thanks ! The way I woke them up was sticking them into a AA battery box I had laying around and connecting an 18650 (Positive to positive negative to negative) to the lead wires for 30 seconds or less. So my request is for you guys to offer me a solution (SAFE Of course) to do to my iPhone Li-ion polymer battery ,that also doesn't include removing it out of the phone . BU-802b: What does Elevated Self-discharge Do? They're usually cheap enough that it's not worth returning them, and if you do, good luck getting your money back. Just hook up the hose until it's full! I think those pulses make the battery work again. BETTERY OF DIGITAL CAMERA(DCR-DVD610 ) HAS FULLY DISCHARGED. Have I got that right? First, what is the model/type of the batteries and the number of batteries? 1. Here is a quick video, which will take you through all steps in few minutes.Click here to watch it on youtube My question is: Is the battery still good? If you have a suggestion or would like to report an error, please use the "contact us" form or email us at: BatteryU@cadex.com. I dropped my spare Alcatel PopD1 mobile phone battery into a stream about nine hours ago. Plugged it into the wall to charge the device and it's not taking a charge. Anyone know how to revive this one? Because when done wrong it IS EXTREMELY DANGEROUS. I have used the link below to look at replies to my question but the link only brings up the same general page with no responses. About 2/3 of them were in good condition (about 1/2 in neer new condition) and none have failed since then. Chargers designed for functional preparedness, or standby mode, frequently allow the battery voltage drop to 4.00V/cell and recharge to solely 4.05V/cell rather than the total 4.20V/cell. the sleep protection circuit activated and left up to 12 months in storage at amazon warehouse? Last Updated on January 10, 2018 by admin 1 Comment. He tried charging with a different one but the torch gave a flash and stopped. I took it apart for curiosity and some newbie studies. I put it back on charge again to completion, and I now have a good battery again! I just had two 18650 cells that would not charge. WebPlug the battery into the BATT port using a 2-pin JST cable and the solar panel into the DC jack using a 2.1mm adapter cable Put the solar panel outside (and keep the battery out of the sun, it needs to be kept cool!) I have subsequently been told that I need to run the battery down to 15% or so which I've done a couple of times now. Let's learn the main points below: The recommended charging rate of an Li-Ion Cell is between 0.5C and 1C; the full charge period is approximately TWO TO THREE hours. Now I'm thinking the protection circuit might be defective and locked itself up whenever I try to input voltage/current or draw too much current out of it. I think the point of this is that yes boosting worked for me. Very enlightening article. I then put them back into the vape and they began charging. I must say I'm happy with the results, it's like nothing ever happened to the battery despite having stayed "dead" for at least three weeks. my li-ion mobile battery 2500mah , working well upto 50% ,after sudden drain and directly come to 11%,, only 3 months completed (buying), anyone give solution???? At 6500 a pop, I am looking for another suppliers that may have compatible li-ion cells as the VL41M format is just too rare. I am a business I have some stock of RC helicopters and cameras which have been sat there for about 18 months. This assists in easing the voltage stress. I also had another battery from a dell from 3-4years ago that i didnt used (li-ion) and it did worked and charged, had no problems with it. was it fast tech same as the stingray X sounds like a short to me,Glad it didnt happen in your pocket!!! All set shows up when the battery gets to the full voltage limit at Stage 1. I am just using them for an e-cigarette and using the vape to charge them. I need help on this one. Segway battery drained completely down now wont take a charge, hi with all my respect my lenovo le z500 laptop le =ion battery is in good condition capacity and other-are all OK it coult not able to charge compactly i starts to calibrate the battery from that time it dost accept any charge and has been remain in zero charge please let me know if i can save my battery thanks so much mohsen. A real eye opener, especially as it cannot charge the 18650 batteries that I have a problem with. I have a Nikon EN-ELxx battery which the camera showed as unusable. An enormous improvement. We like to hear from you but we cannot answer all inquiries. you can check to see if the battery is near EOL via the control panel, then select the battery option. I don't know if only accepts protected or non proctected, but the two batteries that I do have are I believe non-Protected. In the charger now recognized and charging as usual. Copper shunts may have formed inside the cells that can lead to a partial or total electrical short. I have a Hitachi drill with 10.5V battery (BLC1015). This is most stupid and dangerous. I pulled them out and measured again with the meter and they now read 3.2 volts each. Remember that a Li-ion battery BU-802a: How does Rising Internal Resistance affect Performance? But a few questions are needed. Yeah, and five out of six Russian Roulette players think it's perfectly safe too. There were loads of " yes this works " comments. Some use here really wrong words! It's advisable not to use fully charged good cell to wake up a bad cell. Rather than protection circuits, I build a pack with a series of paralelled cells then use a charger that balances the voltage of each paralelled group. I have four of these 18650's period. As soon as the charge is ended, the battery voltage starts to decline. I used to set the voltage slightly higher than the total cell voltage, leave for a min or two, then attempted to charge normally in the device. People want miracle devices all the time, and other people want to make them happy by selling them. if it takes longer than one minute to revive, then the battery is dangerous, and should be discarded. Could it be the batteries are finished or is the thermistor faulty? i was searching for a charger that has a special feature to awaken lithium battery's and i am in doubt if this charger from optimate has it or not 1. Then Google this article: How to Revive a Cell Phone Battery (with Pictures) - wikiHow It will tell you how you can "boost" the voltage with a 9 volt battery so it will take a charge again - good luck, and get a nerd buddy to help, lol. The current capacity is steadily rising by the minute and the temperature is normal. Does anyone have a working battery for a schwinn Transit bicycle i can buy? Stop immediately the procedure and measure the voltages of both cells. Best Wishes, Rick, please my aspire one laptop battery was run down and i try to charge it in the 3rd day but its doesnt charge and the battery is last for upto 4 hours before now its said plugged in, not charging please what can i do to get the battery on back, i have a ipod . I just got my Defeat 2500mAh IMR 18650 3.7V LI-MN batteries in the mail on Saturday (and today is Tuesday). 3. Here is the list of tools used in this Li-ion battery charger. Solder iron, solder wire, Hot blade (link to my instructable, that will help you When I opened the lid, the battery charge showed 78% and wear at 37%.. 2 hours later, it's still charging and it's at 92% charge. I am working on a battery pack for a SeaBob, underwater scooter type thing. CC-CV stands for Constant Current - Constant Voltage. The battery shows 3.4v and will lit up a small LED (not a Cree or high output LED), but will not take input charge by the charger (charger light green like if it was not charging instead of orange) and when trying to boost it up using another 4.2v 14500 battery connecting + and - together, like mentioned above, it doesn't seem to work at all, i.e. sanjay. :( I think you need most likely a new battery-pack for your chainsaw. So, having read that the cleverer chargers start by pulsing the battery to test its condition, I started to think maybe doing this many times might just tip the battery over the threshold. Porter Cable multi-tool 18V batteries, 2 of them, (Model PC 18BL) batteries left in storage for over 2 years. Waking up cells should only be done by people who know what they do. Even when tried to charge it, it was not getting charged. Thanks in advance, Alex. In my experience it works 95% of the time. They are my favourite batteries for my set up and they also are getting harder to buy. Another suggestion was to use a USB cable. the defective 14500 won't accept any input. Well, mea culpa. how to revive: http://youtu.be/CCQU8eW3TGk i don't understand what this guy is doing: http://youtu.be/xyeHKKe2z0Q. On one end, manufacturers recommend keeping them at a state-of-charge of 4050 percent, and on the other end there is the worry of losing them due to over-discharge(See BU-702: How to Store Batteries) There is ample bandwidth between these criteria and if in doubt, keep the battery at a higher charge in a cool place. please read all the replies to "how to recharge sleeping li ion batteries " these replies go back a few years but the principle is the same . After 8 to 15 minutes, I might get one light. The older one "died" in the same way, although it was well within its final leg after a couple of years of usage and it barely lasted half an hour on idle! guys can you please help me to restore my fully discharge li ion battery on my laptop,its about 5 months later after i bought it,i frequently using ac connection so the battery i've only used it ones a week,,but now its already fully discharge and i don't how to awaken it..i already put it on my laptop but it;s not charging anymore,,, thanks, That's actually very great what you guys are writing , but actually needs some simplification on what should be done to boost it again on duty ,ya know. What no one has said here is that Lion Batteries are prone to explodeJust see youtube. I have a Stingray X MOD. With time, the open circuit voltage will probably negotiate to between 3.70V and 3.90V/cell.