How to Wake a Sleeping LiFePO4 Battery 🔋 Charge a Fully Depleted Lithium Iron Phosphate Battery

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2 жыл бұрын

🔋 How to Reactivate a Completely Dead Lithium Iron Phosphate Battery | Troubleshooting Guide 🔋
Are you having trouble with your lithium iron phosphate battery? A common call our support techs get is about activating sleeping LiFePO4 batteries that won't take a charge. In this video, we'll address this issue that some customers run into when they receive their batteries, install them, and mistakenly treat them like lead acid batteries. We'll guide you through the process of reactivating a completely dead battery and explain why it's not the battery's fault, but rather a charger-related problem.
The problem is some chargers and inverters, like the AIMS 75A charger, won't turn on until they see voltage on their input terminals. However, the battery won't wake up to provide power out until it receives a charge. It's a catch 22 when you have a deeply discharged battery! Learn how you can fix the issue in this video!
🛒 Browse the Products:
Nice-Power Adjustable Power Supply - www.currentconnected.com/prod...
SOK 12V 100Ah Battery - www.currentconnected.com/prod...
🔌Chargers that WON'T have this issue:
Victron 12V IP67 Battery Charger - www.currentconnected.com/prod...
Victron 12V IP22 Blue Smart Battery Charger - www.currentconnected.com/prod...

Пікірлер: 268

@stevehogan8829 2 жыл бұрын

Thanks, straight out info... no frills.... understandable for novice. Thank you. Subbed and liked.

@BBFLLC4400 2 жыл бұрын

Wonderful video! Just what I needed to get my battery going.

@timmyinthewell1 2 жыл бұрын

Thats why i didnt buy that particular AIMS power supply for my 24v batteries and went with a couple of victrons instead. I was afraid I might get into in some kind of emergency situation and not be able to charge a dead battery. Thankfully guys like you and Will Prowse are around to save people headaches. :) Liked and subscribed.

@CurrentConnected 2 жыл бұрын

Thank you so much! Yes, it's a common issue with the Aims and portable chargers like the "smart" portable car battery chargers...Too "Smart" for their own good.

@VinceBadovinatz88 2 жыл бұрын

Thank you great stuff I'm not sure if it was you on the other video but you really helped me get my aims charger going. Thanks a mill

@billball5385 2 жыл бұрын

Fantastic, straight forward video. Thank you

@LithiumSolar 2 жыл бұрын

Great explanation!

@CurrentConnected 2 жыл бұрын

Thank you!!!

@chriskoran836 2 жыл бұрын

Great information to know. The two batteries you sent me arrived already turned on so I never had to experience the issue. And if it would’ve happened to me in the field I would’ve been stumped.

@CurrentConnected 2 жыл бұрын

It's been a common question/confusion, and we know our tech support line would have far less traffic after this video :)

@flecktards3126 Жыл бұрын

Hi. My battery died last night after more than a week of nothing but rain and this helped me out. Thanks man. I used a drill battery to jumpstart everything lol.

@DCLEMMS1 2 жыл бұрын

Thank you ! I just tried this and I think its working now !

@dougfarrand3965 Жыл бұрын

Great explanation and demonstration. I am dealing with same situation where one of my two Renogy 100Ah 12V Smart Lithium batteries won't wake up.

@geoff850 6 ай бұрын

Thanks so much-clear and concise.

@billwilson681 Жыл бұрын

This was the video that I needed! I was unable to get my Victron Inverter Charger back online after a winter of having my LiFePo4 batteries disconnected. Once I woke up my batteries and put a charge on them my inverter came back on,

@letun3481 Жыл бұрын

Thank you! Best explanation!

@robjohn6943 7 ай бұрын

I had this very same issue with my 60ah Tracker LIPO, took it back to BassPro and they explained the same thing you have here. Good video!

@apal5386 7 ай бұрын

Your video is so helpful. I thought I fried my Lifepo4 battery but after watching your tips I was able to save my battery. Thanks a lot!!

@timbookedtwo2375 10 ай бұрын

This method (with 12.8v battery as the "pusher") worked for me. My 7.2Ah Miady LifePO4 battery was drained to practically zero volts (0.08v). Thanks for the tip! If you are out in the field or have no other voltage source than a solar panel, you can - briefly - hook up the solar panel directly to the "dead" battery to jump start the BMS. I tried it too. It works. Nothing got fried.

@billybobhammer Жыл бұрын

You're awesome. Great video. Thank you.

@stevemilton3499 Жыл бұрын

Very helpful, thank you.

@randgraham1 Жыл бұрын

Woke up my Global Power battery. Thank you

@HarrisRanch Жыл бұрын

I have 3 SOK's that went to sleep. Thanks for the info

@3oldman Жыл бұрын

FANTASTIC! I just woke up a 48v charger (and the battery pack) for my RV by putting 42v across the terminals using a Segway scooter charger. The battery read 32v - dead. Wonderful! Thanks a bunch! Even the battery manufacturer doesn't know this trick.

@peterlaws1653 Жыл бұрын

I had "dead" lithium batteries in the caravan put the charger on nothing happened nothing I did would work, watched your vid decided to connect the car running and Anderson plug whammo everything started to light up and the charger started to do its job, thanks heaps

@Kai-ze2rb 7 ай бұрын

Great - did save me some money for my motorbike battery. Thanks!

@midwesthoodvents882 6 ай бұрын

Thanks buddy! Just saved my water lines from freezing!

@andrew8531 Жыл бұрын

Thank you that did the trick.

@nenadmiric Жыл бұрын

Thank you! Perfect!

@tomg2951 11 күн бұрын

Super video thanks it helped me to start my brand new lifepo4 battery

@spike178 Жыл бұрын

Great thanks, own a Victron 15 amp blue smart charger already so perfect.

@JunixKuizon 6 ай бұрын

Thank you for this vid.

@explorationsrenovations5982 9 ай бұрын

You certainly did make me have a better day!!! Thank you so much for this wonderful information. I'm surprised AmpereTime, SOK and WFCO do not readily publish this information. This is basic NEED TO KNOW that every LiFePo4 battery owner needs. Again - thank you so much for saving my hunting trip!

@CurrentConnected 8 ай бұрын

So glad we could help! Don't hesitate to give us a call if you need anything else!

@explorationsrenovations5982 8 ай бұрын

Phone number??

@craigvk2paw17 7 ай бұрын

Thank you for this video it really saved the day

@JasonSowder 9 ай бұрын

Excellent video no front end PC and lead up just straight to the point wish more videos were just like this

@CurrentConnected 9 ай бұрын

Glad you liked it!

@Electronzap Жыл бұрын

Those were helpful tips.

@Tipton_Wildlife Жыл бұрын

thanks for this video! I accidentally drained my brand new Weize 100ah. I plugged in my camper and after 12 hours the battery was only producing 11V. I thought I destroyed my new battery. I just watched this and used the battery that came with my camper to "jump" and wake up my lithium and now it's charging at 13v 35amps. Hopefully in a few hours it will be fully charged but I think I'm on the right track.

@alexanderpappas68 Жыл бұрын

Very helpful. Ty

@larrycrevier9630 2 ай бұрын

Great video…. 👍

@kurtrambial4037 Жыл бұрын

Thanks so much this really help me from buying a new battery

@CurrentConnected Жыл бұрын

Glad we could help!

@88NA Жыл бұрын

a clever explanation

@user-oj2si6ji7i 11 ай бұрын

Thank You so much for this info, you saved me, I thought I was going to have to buy a new battery, after this one was dead 5 days after the return window.

@mickeyroberson9082 2 күн бұрын

Thank you

@getaway_man Жыл бұрын

Very helpful, thank you! Now if SOK and these other companies could include this info when they package the batteries 😒

@gilianrampart8514 9 күн бұрын

They do!

@kylesanoria Ай бұрын

THANK YOU VERY MUCH FOR THE INFO SIR, NOW I REACTIVATED MY LIFEPO4 BATTERY AGAIN WITHOUT CHARGER 🙏 from philippines 🇵🇭

@jinko47 Жыл бұрын

Thanks a lot for making this video. I believe I was having issues with the low temp protection on an SOK 12V100AH and was also seeing a very low voltage like in your video. I will attempt the car jumpers!

@CurrentConnected Жыл бұрын

Just remember, if the battery is below freezing, then it will not allow you to charge it even with jumper cables or the proper battery charger.

@jinko47 Жыл бұрын

@@CurrentConnected Thanks for the fast reply, it has warmed up since. Thanks for the warning.

@jinko47 Жыл бұрын

We are up and running!

@KheeRaiElectronics 10 ай бұрын

thank you for your great tip sir,

@CurrentConnected 9 ай бұрын

You bet!

@veryadaeichin4298 3 ай бұрын

you are a legend :)

@EronIler Жыл бұрын

Thank you!!!!

@ShineVi 9 ай бұрын

Thank you so much!

@CurrentConnected 9 ай бұрын

Glad it helped!

@william38022 Жыл бұрын

I may need your help later on I’m going to try to build a small home solar set up/system I just ordered the 100/50 smart Victron MPPT charge controller and I have been buying up Renorgy nine busbar per 100 W 12 V panels as returns from Amazon to save money right now I have four of those panels and three older Renorgy 100 W panels i’ll probably create a small set up with the three older panels in a separate set up and keep the newer panels all together by themselves and their own system. I’m looking at power queen or Redodo batteries any thoughts on them???Am I moving in the right direction here or no???

@cipmike1964 2 ай бұрын

I fix friends dewalt batteries this way. Its the same exact problem, charger wont see it. Easyspeazy. Great video!

@lucasrecoaro1701 5 ай бұрын

Thanks

@jayb7036 3 ай бұрын

Bought a NOCO Genius 10 that’s supposed to trick the BMS into reconnecting to charge my Cayenne lithium ion battery. Not so smart the ‘genius’ charger. U my friend are genius, thank you!

@sampalazzolo8 Жыл бұрын

Do you have to disconnect the lead from the caravan on the battery before you connect the battery charger to wake it up cheers

@gregsworkshop2 Жыл бұрын

Excellent

@robertmccarty2020 Жыл бұрын

BRILLIANT

@boballen9159 2 жыл бұрын

I just experienced a 100ah SOK that is new, wouldn't charge as received and the cell voltage was so low the only way to make it work was to remove the bms and charge the cells directly, now it is charging fine. Big question is are the cells damaged by the low state of charge I received them in and why was it so low.

@kenthayer6255 Жыл бұрын

Good info. I have a lifepo battery from a different mfg and have tried to jump start it. Didn’t make any difference and The case isn’t removable. Just to be sure I need to connect the charger to the battery while jump starting? Any help would be appreciated. Thank you

@karlrickett3632 Ай бұрын

Great video. I have a slightly different problem. I have 3 12V LIFEPO4 batteries in series to run a 36V golf cart. The cart has been dieing after a short period of use. I find that one of the batteries has a negative 8 to 9V on it and the other 2 are fine at around 13.5V. I have to put a 12V trickle charger on the negative reading battery to bring its voltage up so that my onboard charger will take over like you described. My question is: why does one of the batteries draw down to a negative voltage in the first place. It's not always the same battery either. I tried the balancing method of fully charging and then connecting them in parallel overnight but I still end up having the same issue. Any help would be greatly appreciated.

@hmasters1510 Жыл бұрын

To help those without jumpers or extra battery. You can actually use a standard 9v household battery to wake it up. Just connect your battery tender or charger then use a 9v to wake it up.

@s1dew1nd3r4 Жыл бұрын

how?

@M4K9G22 Жыл бұрын

@@s1dew1nd3r4he means wake up the charger shown in the vid. To wake up a sleeping 12v lithium battery, you need to apply more than 9v to it. Most of them need to see more than 12v input. There's many possible sources for this. Wiring 2x9v batteries in series will give you 18v and that will wake up the lithium bms. I used an old laptop charger, which was 18v DC, but you'll need to know which wire is positive and which is negative. A PC power supply (12v DC) or wifi router power adapter (12v DC) would work too.

@JasonSowder 9 ай бұрын

Good points

@gamerscircle Жыл бұрын

Do all LiFePO4 batteries ship like this? Check it, no volts and then put a tickle charger on it until I see volts and then should be good to go?

@chadellett4696 Жыл бұрын

Question what happens if you series connect 12volt lipo that don't support it.

@claytonking70 10 ай бұрын

This is good information

@CurrentConnected 10 ай бұрын

Glad you thought so!

@markhahn8288 2 жыл бұрын

Will a Victron Multiplus 3000VA 120 12v try to charge an LFP battery showing no voltage like the other Victron chargers you linked to?

@walleyehunter8862 Жыл бұрын

Hey I didn't get a nice charger like that with my 100 Ah lifepo4 from Amazon 😄 How do you get the voltage to 50 % when I'm done using my battery for the season ?

@natanmortenfeld5813 Жыл бұрын

question: can i use the same 12 v motorcycle lithium charger that charges my 12 v lithium ion battery on my 12 v lithium iron battery , or iron v.s ion need special charger for each ?

@UnLikeU Жыл бұрын

POSTER PLEASE RESPOND!! SO OMG YOU MAKE THIS MAKE SENSE. I HAVE 2 DEAD LITHIUMS. YOU MEAN I NEED PLUG IN THE LITHIUM BATTERIES TO THE CHARGER AND WHILE CONNECTED "A L S O" HOOK UP THE JUMP STARTED BATTERY??? I was taking the Lithium that needs to be woke and just putting it on the Jump Started Battery getting no results. I need to have it jumped WHILE ON THE CHARGER!!!!!!!!!!!!!! MAKES SENSE BRO!!!!!!!!! 👍👍👍👍👍

@billyk7831 Жыл бұрын

When the battery goes to sleep what is the best way to do 2 full cycles of charging and discharging to reset the BMS SOC?

@ericskarl5855 2 жыл бұрын

I have a tiny 1 amp 24 volt power supply. I will keep it with me in case this happens. Thanks!

@SaabAholic 11 ай бұрын

I have a car battery charger that does the same thing. What a great thing to know!

@jdeadman 2 жыл бұрын

The Key is the BMS has cutoff the discharge of the battery. It will not reactivate until some current goes back into the battery. It's not the cells themselves but the BMS.

@CurrentConnected 2 жыл бұрын

Exactly!

@sreekumarUSA 2 жыл бұрын

The user discharged the battery to the lowest limit of 2.5V or less and as Jason explained the , the MOSFET switched off the battery (cells) before the damage could take place. Victron IP67 would recharge the dead battery without external Exciter procedure, as the presenter narrated. FYI the battery in question uses smart JBD BMS. Thanks for reading. 73s…

@sudiptadalal6551 2 жыл бұрын

@@sreekumarUSA hi, can connect? I have some specific queries

@judgedredd8876 Жыл бұрын

Oddly, the video indeed omitted the actual reason being that the BMS low voltage protection cuts off. I have mine connected with my engine start battery via a 30A switch on the dash (helps the SOK start the fridge). Had to use it once when during storage I left the solar charger on (in sleep mode but drained the SOK 206Ah nevertheless).

@johnjotham6325 3 ай бұрын

@judgedredd8876 you went on to now explain the reason though

@tittiger 4 ай бұрын

Wish I knew where you got the cables and large Power Pole connectors for the Aimes charger....

@Relaxed161 Жыл бұрын

What do I do on my boat to bootstrap the battery? No AC, no DC without my SOK batteries?

@steventripp4530 Жыл бұрын

I have a 2 12v battery bank to 24v just went lithium and the battery's won't take a charge from my solar panels. Any advice.

@ericskarl5855 2 жыл бұрын

Thanks you. I am installing a 24 V battery in my travel van. And a volt meter! Important information should my battery go to zero.

@NM-zi2zv Жыл бұрын

Will this method work on a 5yr dead YTZ14S battery that was sitting in a generator?

@yakcatdrifter6820 4 ай бұрын

So if I buy the Victron Energy Blue Smart IP22 I will not ever have this problem again right? And is 30amp ok for this battery in video

@ethan4496 2 жыл бұрын

So my battery showed up dead. I haven't even connected it to anything but the charger today and it was all the way dead. Bluetooth in the battery running all the time? Why would the BMS not prevent the Bluetooth from discharging the battery that nothing? Am I going to run in to this every time I pull the camper out where it's dead if it sits for a few weeks?

@parkcrashers5922 11 ай бұрын

You are the man! 👍

@GeekonaBike Жыл бұрын

how do reset the Lithium Iron Phosphate BMS that think it full a 50% (by voltage? I to thought my lead acid expertise was good enough & stuck them into my solar system w/out first charging to 100%

@fishhunt2496 Жыл бұрын

I have a 36v 60ah dakota lithium battery, charger show fully charged but when I test the battery it show zero volt. Can I use a 12 VOLT battery to jump start?

@user-or4bh1nx8z Жыл бұрын

If i use a jumpstart for car to my LifePo4 battery will it revive it enough without causing any harm?

@JohninCle 22 күн бұрын

I got a 100AH battery that the BMS (This has bluetooth too and it is amazing) doesnt let it go completely dead. (They are out there now) my 20ah battery doesnt have this. so it needs a jumpstart. good video to explain it. 3rd time I used it. I let an inverter I am testing 2000w drain it dry. Thought the battery was smoked. Nah.

@raymondcrowel6409 Жыл бұрын

So i have this set up (aims power and Sok 12.8V battery. I followed these steps and the aims comes on BUT when I disconnect the external power source the Aims charger goes into float mode, while the battery remains uncharged.

@MrStevo1117 2 жыл бұрын

You can still get old-school battery chargers; manual battery chargers that have a switch on them to change between 6-12-24 . the "smart" chargers I've always found to do a poor job in sensing and are too tempermental from a safety standpoint.

@ReubenHorner 2 жыл бұрын

In saying that. You can use a smart charger, just have to enable the bms by jump starting the battery so to speak with anything over 12v and a light bulb

@chriskoran836 2 жыл бұрын

I heard you say that was a 75amp charger. Is that okay to use on the SOK 100ah battery? I realize this was just a learning video, but your website lists the recommended charge to be under 20a and the max to be 50a. It would be great to hear I could add a little more beef to my charger down the road once I improve my cabling further.

@CurrentConnected 2 жыл бұрын

The charger can do 75a, but it has an adjustment knob so it can be turned down to 20a. You can set it to whatever setpoint you want.

@chriskoran836 2 жыл бұрын

@@CurrentConnected Good to know - thanks for the details.

@mymbrain Жыл бұрын

I have a LifePO4 battery in similar situation but it is actually charged, that I can see 13.3V with the bluetooth app it has, each cell also has around 3.3V. But there is no output voltage, its just 0.06V~. I've tried putting some charge but nothing happens, any ideas?

@amyocean.vanlife2684 Жыл бұрын

Hello, i received my Sok discharged. I recharged it at 100% and it's sitting in my living room since then ( 2 weeks) the battery is discharging alone. It's now at 60%, so it drop 40% in 2 weeks. Do you know what can i do. Thank you

@billcooperpatriot1059 2 жыл бұрын

So can I just use my Astron vs 70m to charge my LiFePo4 with 14.6 volts?

@roginutah 2 жыл бұрын

how do you ever know if you actually started at your battery's maximum? Did your charger quit after it hit 78%? Some other %? Do have to go to dead, use a shunt and then measure how much goes in? Then compare that to the rating on the battery?

@egnonnasisse2024 Жыл бұрын

Hi Sir, I have a 200ah Battery that has to stop holding up Charge and I don't know what to do, I have another 100ah Battery by the side, can I use the 100ah to wake the 200ah up, and how should I do it Sir?

@richward2288 4 ай бұрын

I have a Rebel 24 Ah battery that has had little use. I run a small 14 lb. thrust trolling motor with it. The battery worked very well and I always charged it with a Dakota 3 amp LiFePo4 charger after each use. One day it read 8.4 volts and it hadn't been used. I put the charger on it and the charger showed the green light and wouldn't charge. So is this the same problem? I need to attach a 12v source to bring up the voltage to 12 so it will charge? Can I just use a standard wet cell charger to force 12v or do the battery electronics prevent this?

@richward2288 4 ай бұрын

I tried the charger, which puts out 14vdc regardless of what the battery voltage is; doesn't make a difference. The LiFePo4 battery is down to 6.27 and won't go any higher regardless of how long you leave the charger on.

@FailedSquare 2 жыл бұрын

Good video. Ive got it hooked up and the battery is still not "waking up" is it possible the BMS in the pack is configured differently?

@FailedSquare Жыл бұрын

Update: my battery had a damaged BMS, Had a gouge that crossed several traces including one of the primary leads from the cells. It was apparently done before the battery was assembled, probably during assembly of the bms board. I was able to repair the BMS and now have a functional battery. The store also sent me a replacement battery as well so I've got two ✌️

@eduardoandreotto3504 2 ай бұрын

Hi! I have a 51.2v battery dead and have another working on 48v. Can I boost the dead 51.2v with the 48v?

@Yukonjackman1 Жыл бұрын

I have a 48 volt lithium battery showing 5 volts it was in a bank with 3 others this is the only one showing that voltage, this is in a golf cart could it be sleeping ?

@michaelcanto6175 Жыл бұрын

I recently used the jumper cable trick worked great!

@TraditionalFun Жыл бұрын

Did you leave your dead battery connected to charger when u jumped it or did you jump it and then hook up the charger?

@jcschwarb 7 ай бұрын

My 12v Lifepo4 has reverse polarity and cant get it to go. I tried this method. Any thoughts?

@chriskoran836 2 жыл бұрын

So if you had two batteries and one was shut off, could you connect them together and the one would turn the other on? Sort of like if you were balancing them?

@CurrentConnected 2 жыл бұрын

Yes, exactly. The BMS of the dead battery would see the charge current and turn on, and if not, the charger would see voltage present on its terminals, turn on / start charging, which would then push the power through the BMS which would re-activate it.

@chriskoran836 2 жыл бұрын

@@CurrentConnected Thanks!!!

@deonzar 11 ай бұрын

You can also use one of these small 8aH 12V gate batteries to jump start

@newscooler12316 Жыл бұрын

My battery did come charged but it literally only last a 1-2 seconds now it has no current but still reads 12v? I don't know what happened.

@aaronambur 21 күн бұрын

will the Victron Blue Smart 12V IP65 Battery Charger work as well and have it's own power supply to wake a dead LiFePO4 battery up like the two models you suggested?

@aaronambur 20 күн бұрын

@getrohanlobo Жыл бұрын

Hi - I just bought a LiFePO4 battery and it has voltage but 0 current - if I hook it up to the IMAX B6AC v2 charger, I get the BATTERY CONNECT ERROR - how do I reactivate it safely