Review Of The Foxsur Pulse Repair Car Battery Charger 

The algorithm is working in your favor my friend. Your video was the first one to come up in my search. Good review. Thanks 👍🏻

Bought mine a year ago from Aliexpress. Lost the manual. Found your video very helpful. Thanks from Germany. 👍

Thank you, sir. As a ham, CB & UHF radio operator we always keep backup batteries & inverters in case of emergency. I have a few 3.3, 7 & 12 amp gel cells & some larger lead-acid ones. These are for an emergency & is a whole lot closer with this Russin business now going on. I have this same charger. They work. I recently was given an 85 Ah battery. I topped up this 85Ah sealed leisure battery (I distill my own water) by drilling 6 holes topping it up & resealing it with hot glue so easy to remove & re-top up in the future. I had it on pulse repair overnight & it brought it back. My only test was on a 12-volt kettle that draws about 14 amps & It boiled a full kettle twice so far & close to an hour of 14 amp constant current draw & it's still well over 12 volts, but I will give it some more pulse charging. I have 2 126Ah truck batteries that I have been maintaining on pulse repair in case this Russian war business goes nova & the UK loses its power grid with conventional or EMP weapons. UK power grid is very fragile. God help us if that happened all nuclear facilities could not be maintained & would explode. If there is a god that is.

Very Detailed and helpful video. Thank you for making it 🙏🏼 I'll subscribe 👍🏼

Good review and very clear and easy to understand. Nice one. I’ve now bought one and I’m very pleased with it

Just got mine delivered before I found your video. I've got a 2YO battery & I'm 100% sure the alternator isn't the problem. Thanks for a quick & succinct review of this product. Greetings from Manila, Philippines!

Excellent review Phil: thanks for posting. From Somerset England

Love the review because I just brought one but before I decided to buy I was looking for something bigger. It was like you said technology has come along way because I only new big heavy duty chargers like my dad had when I was in my youth why I was confused to by or not. I'm happy I did.

Great review very useful thank you!

I bought mine after watching this. The device is brilliant, although it really takes longer to charge. Thank you very much, sir.

Thank you for your Review on the Foxsur Pulse Battery charger, it was good to hear a clear and precise English voice, I also live in Thailand but orginally from England.

Thanks I got mine from Toubo and had no English instructions and never knew a lot about it and would just unplug at 80% full now I know to keep it charging even when the light for full turns on👍

Well, I am watching the video post purchase of this device to know more about it. Your video surfaced first in the google search. Glad to have stumbled on your review Phil. Without knowing much about it, I happened to take the battery completely out and then charge. Viola, it worked on my cars dead battery. Good to know that it is safe to charge without disconnecting the battery from the car as well and also thanks for the tip to connect the negative to the chassis on a piece which is not painted. Will remember that. I did not fully charge though. But I guess it was enough to power on and get going.

Your the only one that helped me, Thank you very much ❤

Great help. Thanks 👍😊 from France

i live in Thailand to same as you i don't use my pick up much and sometimes just about starts, and have order the same charger today

great video! thank you for your help from a girl who has no idea about cars x

Helpful video. Thank you, sir.

Thanks for the video M8...Quickie question....why when charging the battery in the car would you connect the negative to the car chassis rather than direct to the neg terminal...?

got one, very usefull. Live in Malaysia and batteries do not last as long an essential piece of kit during lockdown

Thanks. very good news ^^

I learned that the charger works and learned a lot from what you said thanks

Thank you for this informational video. I like to ask if this charger is safe to use on modern dry cell batteries?

Good explaination .

I have one like that for the European market and it's good, its advantage is that you just hook it up and let it charge, you don't have to remove the battery, but it has one big flaw, it takes a very long time to charge the battery, if it's summer and the temperature in the battery is around 28 degrees, it will reduce the charging amperage so that the battery does not heat up, that's ok for safety reasons, but charging takes a long time, the colder the battery, the faster it charges, the bigger it is, it regulates the amperage itself. So if you bought a 5 or 10 amp charger, it doesn't matter because it will reduce the amperage and you won't gain anything in time... I've never tried the pulsating mode, because I don't wait for the battery to fail, I buy a new one every 3 years.

Good clear video.

Thank you

Great video

Got the same one for a few years, now trying to recover a 40ah battery with pulse. Hope it'll work.

I am looking at buying on of these FOXSUR Battery Charger because I looked AliExpress & read up on it apparently the FOXSUR are a very good brand of charger & it has 7 stage charging system & they are reasonably priced battery charger Kind Regards Peter

Thanks Phil. Got the same foxsur, similarly my car didn't have enough energy to unlock the doors either. When connected mine said battery was 'FUL' fully charged, even though it's dead. I believe this means it's either very sulphated or left too long. My battery is only a year old. I've put it on pulse charging but not sure it's working as videos I've seen of it shows fan should be working and it should make a fair bit of noise when pulse charging, but neither happens on mine. Have you experience of using the pulse function?

Thanks mate

Please updated if de-sulfation remained for some time say 6 months or the battery went bad again in short period of time say in one month.

After charging to “FULL”, do you disconnect the terminals first while the charger is plugged in? Or do you unplug the charger first before removing the terminals?

Came here to find out about the battery charger, and spotted your car battery was in Thai, before you said you were in Thailand. I'm down south on Koh Lanta :) . Bought one of these the other day to check a few bike batteries (all good) Currently have the charger in repair mode on a UPS battery to see if it will bring it back to life. What I don't understand is the temperature sensor - there's no way that is the temperature of the battery, it must be the ambient air temp, or the temperature of the charger. I can't think of any way the charger can tell the temperature of the battery just from the charging connectors.

I saw this exact same charger in Taiwan. It is only 300nt $10 US. I am in the same position as you, basically have not started my car in a few months. I will buy one and see if it can start my dead battery. Thanks.

I used repair mode to revive a totally dead battery. It took almost 30 hours on REPAIR before it could hold a charge, but was back to normal after that.

Great video and review. Do you know if your battery charger pulses are 16 volt power spikes like a Noco Genius 5 and 10 charger or CTEK charger uses? I have a Pulsetech PowerPulse passive battery desulfator on my 2001 BMW battery as preventative maintenance as Pulsetech claims that there patented frequency they use can extend battery life up to three times. I also used my PowerPulse on my other BMW battery that I let sit disconnected for a year, and it was at 11.2 volts, I tried charging it with my friends Exide 6 amp automatic charger for 14 hours and battery voltage was at 13.1 volts, yet it would not start my other car. I put the PowerPulse on it along with a 1 amp Schumacher manual battery charger for 72 hours, and left the desulfator on it for a week and it started my car right up. My point is desulfation can take up to 30 days depending on how sulfated your battery is.

I am considering about purchasing this model. My batteries are for motocycles, 12V, from 4Ah. Is the current 3.6A quite high to charge low capacity batteries?

Test the voltage with a multimeter at battery terminals while charging, it is HIGHER than what's shown on the LCD screen.

i have had mine for a couple of months now, and have kept my caravan battery topped up ,also had a Exide 45A battery which has not been used for a while and although i have charged it before over 12months , it has a window which supposed to let you now the state of the battery , black colour (needs charging or flat) silver needs charging, and if the battery is good green, which although i have over chargers it has never been green in the small round window at the top, however i used this charger on pulse for about 16hrs then it went to trickle charge and guess what i have a green window like it was new again, its cold here so it charges about 15v, so the pulse bit works and of coarse the charger, ?

To charge the battery without disconnecting it from the car. If the battery negative terminal is earthed, can I connect the black lead from the charger to the battery negative terminal?

Could you please explain the difference between plugging the negative to the car body or directly to the battery while charging ? is there a difference really ? Thanks so much

Bought a similar unit for $12 US, first time using it right now, but it's been two years got any updates

Just bought one of these, (EBAY=29.00us)under another name, because I had an optima battery go kuput’ after only a month of use, mid winter, in USA. Man, I’m here to tell ya, it works. Saved me 300.00usd battery back to 100% after the 18hr repair cycle. My regular AGM charger would just shut off at 30% (edit) radio killed the battery , below where it should of gone. Back to normal now , though

I have the same battery charger. Just wondering is it OK to use this as a trickling charger to leave it hooked on the battery for a longer duration to compensate the discharging on the battery over the time.

I have re conditioned 3 batteries already all motorcycle and jet ski batteries

I would have liked to see exactly what you attached the the negative clip to. I would have attached both clips to the corresponding poles on the battery itself. As we speak, I'm charging my car battery up now in the house having taken it out of the car completely. What would happen if you attached both clips to the battery while the battery sat in situ? Thank you. (BTW, I got my charger for £15.59 on Amazon so I feel completely ripped off considering how much you paid for yours!)

Bought this charger to try & fix wifey's Suzuki Celerio which is also suffering from Covid torpor. I attached the red clip to the +ve post & the black clip to the -ve post (not the body earth). Will this damage the battery?

Would it affect the car in anyway if the battery is not unolugged from the car and the charger is being charging the battery at thr same time?

Hi Phil i got a Foxsur after listening your review. i tested on a fairly new spare battery ( not yet used) & there was no charging light on & screen showed temp & constant 12.5 volts readings . The battery figure also showed only 40% charged ( 2 columns) This lasted over 8 hours without any change in the above light , readings except for temp which went up . i also tested the charger on a working battery . Again there was no charging light & screen showed temp & 12.5 volts But the battery figure showed 100% charged ( all the 5 columns) . in your assessment is my new battery faulty ( 40% charged) or is charger faulty since not charging in both cases

Can the battery charger be used as a trickle charger for a motorcycle battery that's not used all winter

Does that foxsur thing durable ? Look like a cheap made that don't last long eh

My charger is currently not working. LCD only displays El-l- and wont charge anymore. Any suggestion how to fix it?

Very interesting video and comments. My question would be: have anyone actually witnessed the device switched to the normal charging mode after being in the repair mode for so many hours? I bought a device myself and can't wait to test it.

Hi there, I was just wondering if you’ve had a chance to test this charger a bit more in particular the repair function. Give me a shout if you did, it would be brilliant to know you opinion.

I just wanted to know after using the pulse repair did the battery last?

it's work really great, I used it 2 times now, because i abandon my car for 2 week and the battery getting weak. I save a lot money when i have this charger. before I usually change my car bettery every year, now it's has been 2 years I didn't change it.

Great video... Got my Foxsur today but it turns it's self off in every mode after I turn it on (connected to the car battery). Any thoughts? Thanks.

Thanks for the information ♥ ️ I have a problem with this charger and I lack experience. Can you help? ♥ ️ ♥ I put maintenance and the operation was successful, but the problem The battery is empty of charge 0/100 and despite long hours in this charger does not exceed 20/100 what is the solution

Hi Phil, I was just wondering, when i charge a lead acid battery the charger when up to 14.8v and still charging is tht a normal voltage for this foxsur charger? Thanks...

Does anyone know if you can keep this conected when on a leisure battery.

How long will it take for a 2sl battery to pulse repair? Thanks, looking forward for your response.

My friend, i need your advice. I bought this battery, and it went on “FUL”, but I left it to do some chores, and came back 1.5 hours later. So the LCD display says “FUL” for 1.5 hours. The display still says FUL. But at the same time, the red indicator light went from “charging” to “fault”. Is this normal? Can “FUL” and fault light be ON at the same time? Its a brand new battery. I bought it just 2 days ago!

Mate it says Full but the fan still kicks on any idea?

Hi can you leave it permently on if not using the car say for 3 month ? And when it's full it switches off and when the battery starts to drain it comes back on? Have I got it right I live in Thailand also so your recommendations I respect thankyou

Bought one earlier this year and used it for the first time yesterday. The red Charge light does not come on and the fan wasn't working. Had turned on power then attached red clip to battery positive and black clip to car body (earth point). Display only shows the battery voltage and the temperature. What could be wrong?

Ah jaysus I only got my one of these in the post today. Seems to be fair decent .

Which is best? 1) 3 Stage or 7 Stage charger ? 2) 5A or 10A ?

Hi Phil, I have a 7 year old Ford Focus that is on it's original battery. A few times now had to jump start, even took it for a drive and battery is at about 20%. It took about 6 hours to get to 30%, would you say I should run repair mode? How long for etc?

Should we remove negative pole cable before charging

Unfortunately, the charger has no noise filter at the input of the switching power supply. It thus produces a really large amount of interference in the distribution network. This may limit the functionality of other devices, especially electronic devices, near the charger. This was the reason I came to this fundamental shortcoming of the charger. The charger definitely does not meet the requirements of Electromagnetic Compatibility standards! Personally, I solved this by inserting an interference filter from a non-functional ATX PC power supply. In my case, this solution reduced the interference to an acceptable level. Otherwise, the charger itself works well.

Can i use this device to Jump Start To urgently use my car? And then is it able to recharge again when i got back home and leave it overnight?

I'm wondering why the smart charger it's off how can I know if it working or not? Thanks for reply Inn advance.

I just wondering... how long do you use the repair mode? I tried to repair my 12v batteries but the display does not say anything.

What is the work of repair button ?

I watched this and as a result I bought two Foxsur charger/pulsers. I then tested both in operation on a lawn mower 12v battery. On pulse/repair mode they were ok HOWEVER in normal charge mode both chargers delivered 46 - 48 volts, which makes them a fire or explosion risk. They are supposed to deliver a maximum of 14.4 volts. I would advise against buying one at all.

I found problem for this foxsur charger in order to charge AGM battery. normal battery charging voltage 14.4V but AGM requires more higher voltage 14.7V or higher but this charger only charging 14.7V when it's not summer mode. you can only charge AGM battery when weather is cold.. wasted money

Hi. My 10 months old battery 95ah12v and it's fully drained absolutely no voltage what's so ever. I tried with this device to charge it but no luck. Any suggestions please?

How long to fully charge 12v? my foxur takes 2 days to get fully charge

Would you please take photos of thai manual.

Hi ive got exactly same foxur model as your. Sadly that when i used them with my toyota camry.... right after that the knock sensor was fail. Yes it could and likely be just coincidence but anyway it scare me out to keep using this one, because ive pay quite a lot a lot to replace that sensor. So that now im switching back to my CTEK mxs 5.0 charger. >< Ive gave my foxur to my cousin and still no complain from him so it might be just my bad luck lol Just want to share my story ^^

Can it be used and repaired for 150 . Gel battery?

One question: I have been using this charger, since January of this year, in a 3 y.o. Lead Batery of 700 AMP car battery, because it was waking up in 11.9 volt and didn't star the car. The fist time revived with the repair mode for 4 hours. Since then I was doing a repair charge of 4-6 hours once a month. The other mode doesn't activate: shows FUL even if the charge is low, so I can' only do the repair mode. But in the last two months the battery loses its charge overnight. I repair for 30 minutes and I can start the car, drive, and keeps good for about 6 hours. Any thoughts? How can I improve this? A repair charge of 24 hrs? The longest I have used that mode is 8 hours and still loses the charge overnight.

can i always start in repair rather than charging?

So if your car is parked outdoors in the UK, and the charger / repair takes about 20 hours... it's not very useful unless you have a tent to shield the car / charger from the rain!

I have just purchased one....word of advice....dont plug it in next to your WiFi router, when in repair mode, it makes a mess of WiFi signal 😳

can i start the car while the charger is plugged in

I've just got mine and put it on a dead motorcycle battery so here's hoping.

and at the same time i need to connect this battery charger to the electricity socket??? how the hell i will find socket in the middle of the road then...

i cant get this for anything like 10 quid?

I would just like to point out here, that your automotive battery is not filled with sulfuric acid... I don't know where people get this from? The electrolyte solution inside your automotive battery is just Distilled Water... the process of transferring energy from your alternator to the battery is what creates sulfuric acid inside the battery, and it is then released into the electrolyte solution. Fallen automotive battery does contain sulfuric acid, sulfuric acid is not specifically put into the battery.

in fact this device is distributed by many brands, cuz this come to those enterprises who want sell to final user.

IF USING REPAIR MODE DISCONNECT THE BATTERY FROM THE CAR (no need to take it out) I do a video about Thai crap batteries which need regular distilled water (look down the glass sight to see if its red or blue on your GS masterpiece of Kee Nok) it's in my videos (look for Nissan fan repair) shows you what you need to do to make sure your so called "sealed" battery has not dried out in this freakin climate (hua hin/every 6 months) Rip off the long label and you will see some cell covers if dry you MUST top up with distilled water (I use water from my a/c) (true even for panasonic I'd never use the battery maker GS you have ) Jump starting does not put huge jolts into batteries (why would you think that the car's alternator charges at 14 volts, ?) BUT you must check the cell water level as that's that first base check unless wanting to get home fast. You don't need to use the chassis as a return lead, as the chassis may have some problem and resistance, what you need to do is check the battery is not drained by a small circuit or light. I got one of these charges it seems fine, jury is out on pulse repair. Leaving a battery discharged will kill it soon enough (below 11v)..................

Thats not temperature of battery but temperature of ambient air, it has function where in cold weather conditions it charges battery with lower amperage ;)

These things cause horrendous interference on various radio bands.

piro kang regane

I thought it was a moderate review generally speaking, but I think that the instruction manual that comes with the charger is completely useless! because it doesn't tell you how to use it at all despite having translation in lots of different languages. The charger has a micro processor but it thinks it is so clever that it doesn't need to tell you how it works! Bring back clockwork! I am sorry for being so grumpy, but at least I know where I am with clockwork! Perhaps you could fill in the gaps?

Do you mean london.

Did not work for me.