Just to clarify, we did, in fact, have a defective Gooloo GT4000 with the preheat technology. Not activating in below freezing temps in a few different videos. We ordered a new Gooloo GT4000 to verify if we had a defective unit or not, and the new Gooloo GT4000 works perfectly with the preheat technology activating properly. We had a few other viewers mention that their GT4000 was acting the same as our defective unit with the preheat technology, not activating. So obviously, there are a few defective units on the market (like all products). Also, just to clarify, I am not one to bad mouth another company, I just post and review what I experience. Gooloo is an outstanding company that makes great portable jump starters. Unfortunately, a few defective units slip through the cracks every now and then and get shipped out.

@semlohde1

4 ай бұрын

I sure hope they got it corrected as I just ordered a gt4000 from Amazon. I was just hoping to get a new one instead if something they rewrapped! Thanks for passing that along. So I should chill the unit and that will test its heating element to charge - again, thanks.

@HM_RELOADED

4 ай бұрын

@semlohde1 All the GT4000 units were not defective, I was just one of the lucky ones to have a defective unit. If you want to test the preheat technology, you will need to keep the unit in frigid temps for a few hours before use. Read the manual in reference to the preheat technology. Let me know how yours works.

Finally someone that tests jump starters when they are cold. Leaving it in your cold trunk and then finding you need a jump is when I need it to work the most!

@user-hc5mz8bl7b

8 сағат бұрын

@@stevenle1760 Nobody remembers to take that shit out of their car everytime they go inside when it is -40. 🤣

Thanks for testing these units, very useful. Try to warranty out the Gooloo and test another unit.

@HM_RELOADED

9 ай бұрын

Will do. Thanks for the comment. Have a great day

что бы разморозить надо подержать кнопку boost

@user-cv8vv7lk6c

7 ай бұрын

Мудак кабеля резанул, нарастил чем нарушил сопротивление!🤣

What is the watt hour rating of this jump starter. I cannot find that info on amazon or Lokithor website for any of this brands Lifeo4 jump starters.

@HM_RELOADED

9 ай бұрын

According to the specs on their web page the Lokithor J401X has a WH of 74. I will double check when I get home and look on the actual J401X model and see what is says. But the J401X is a great unit as our videos show. I appreciate the comment. I will double check the WH, but it looks like it's 74WH. It was actually not easy finding the WH on their website, but after a few minutes I found it.

Just having ordererd the Gooloo GT4000S today, I might be off track. Isn't there a heating indicator right next to the snow flake icon, as if the snow flake would just be a low battery temperature indicator. Shouldn't that heating indicator come up while actual the pre-heating procedure is active? Also, shouldn't the display show the pre-heating temperature right next to the wattage display? Both didn't light up during your test. Checking out the Gooloo US Official Store, it seems that the GT4000S only is equipped with the cold battery warning indicator, while only the GT4000 (without the S) is equipped with the "Most Intelligent Pre-Heat -40°F Start Tech", for whatever reason.

@HM_RELOADED

8 ай бұрын

The snowflake indicator means there is low temp technology. The Gooloo GT4000S does Not have low temp technology, the Gooloo GT4000 does have low temp technology. When the temps are too cold the Gooloo GT4000 will display a snowflake showing the unit is cold, then after about 100 seconds the low temp technology is supposed to activate and warm up the unit, then you are able to jump start in frigid weather. The snowflake indicator should not illuminate if the battery is low. If you need anymore info please let us know. But if you live in a cold climate the Gooloo GT4000 has low temp technology, the Gooloo GT4000S does not. Thanks for the comment

@RECURSIVE_MEMORY_LOGIC

8 ай бұрын

@@HM_RELOADED Thank you for confirming my research. Meanwhile, I cancelled my order. Unfortunately, only the "S" model is available in my country.

@HM_RELOADED

8 ай бұрын

@@RECURSIVE_MEMORY_LOGIC Where are you from, if you don't mind me asking?

@RECURSIVE_MEMORY_LOGIC

7 ай бұрын

@@HM_RELOADED Sorry for the late reply. I live in Germany. Amazon only sells the GT4000S variant which I returned. Seemed, that the variant with battery preheating is not available in Germany at all. So I ordered a GT4000 at Aliexpress and got it shipped from Poland. To test pre-heating - I was all curious about it - the unit spent 24 hours in the freezer. Took it one minute to heat its energy cells from -15 °C to +5 °C, while its capacity dropped from 100 % to 96 %. No opportunity yet to jumpstart a car. Just took the opportunity to upload a short clip showing the procedure: kzread.info/dash/bejne/hn2ExY-yirK0lLQ.html

@HM_RELOADED

7 ай бұрын

@r.martinlebrecht9987 Thank you. I have seen on other videos how it works. So I must have a defective unit. I know a couple other people who have the same issue as our GT4000. So I guess there are a few defective units out there, just like all products. Unfortunately, there are always a few bad ones in the bunch. I just posted the results from the unit I experienced. My intentions weren't to make Gooloo look bad, but I make videos showing the product I was given. I appreciate you taking the time to show me the video and how the unit is supposed to work

Do you have a video where you test these jump starters when they were not put in the freezer ?

@HM_RELOADED

9 ай бұрын

We have many videos testing these products, check out our channel. Thanks

@beri232

8 ай бұрын

There are tons of videos testing this charger without using the preheat function. Try looking!

@HM_RELOADED

8 ай бұрын

@beri232 we actually made many Gooloo videos testing only its functionality, not testing pre heat technology. The point of this video was to see which units will work in frigid weather. Try looking. Lol

@beri232

8 ай бұрын

@@HM_RELOADED hey dumb-dumb…. The comment you replied to above was intended for @dallase1 ….. “try looking!”🙄

If it’s the gt4000s then it does not have the heating feature. They have two versions

@HM_RELOADED

8 ай бұрын

The Gooloo GT4000 has the low temp technology, the GT4000S does Not have it.

@lanceboudreau3630

8 ай бұрын

Right that’s what I said just in reverse order.

Your gt4000 isn't preheating. When it is heating a temperature in celsius is displayed and a little heating icon shows up beside the snowflake. Without the booster cables plugged into the unit you need to turn the unit on and hold the boost button, this should enable preheat mode if necessary.

@HM_RELOADED

8 ай бұрын

We did that on and off camera, we believe we have a defective unit. We did everything, trust me. Lol. We are in the process of ordering a brand new GT4000 and we want to see what happens to that one. There was one KZread video that shows the GT4000 preheating without being hooked up, then i have had other people tell me it shouldnt matter if the unit is hooked up or not, it still should have preheated. But as i said, i usually test things on and off camera extensively before and after making videos, just to share some info. All the other units i have tested with the preheat technology preheated and worked great when they were hooked up to the battery. But we have testes all the units on our channel with preheat technology on and off camera. Watch our newer videos on deep freeze test and the Gooloo GT4000 does preheat when its hooked up, but it takes about 15 to 20 minutes to preheat for whatever reason. Our last 3 videos on the Gooloo GT4000 were the deep freeze videos, the Gooloo GT4000 was able to work in frigid temps, after about 15-20 minutes like i said. The first video the GT4000 was not able to jump start. Thanks for the comment

@freakerss

8 ай бұрын

@@HM_RELOADED That's unfortunate if it's a dud. I watched all 3 of your freezer videos and didn't notice you turn the unit on without the cables plugged into the unit and then press the boost button, figured I'd mention it.

@HM_RELOADED

8 ай бұрын

@freakerss in the videos I attached the cables to the battery, and the GT4000 still was able to preheat after about 15 to 20 minutes, that's hooked up. I said we have also tested the GT4000 off camera when the GT4000 was Not hooked up, and we had the exact same results. So we are assuming we have a defective unit, but when we get the new one we are going to extensively test that one as well, hooked up or Not hooked up. When you say the GT4000 can't be hooked up in order for the preheat technology to work, my other videos show the GT4000 hooked up and the preheat technology was able to work after around 15-20 minutes. And the kicker is, after I tried the GT4000 when it was hooked up and the preheat never worked, I put the GT4000 to the side of the hood as my video shows throughout the video, and the snowflake never disappeared (GT4000 was Not hooked up) and it still never activates the preheat, until around the end of the video. Also, in the manual it doesn't say the GT4000 has to be unhooked or hooked up for the pre heat technology to activate. It just says when you're using the GT4000 wait 100 seconds and use the unit in frigid weather, or after 100 seconds you could push Boost and try to jump start. So the videos online and the actual manual are a wee bit confusing at times

@freakerss

8 ай бұрын

@@HM_RELOADED I understand, thanks for explaining. I've noticed a lot of Chinese to English manuals often have numerous errors throughout them and can be contradictory or misleading. I believe the 100s "auto-preheat" function is simply due to the current flowing through the unit into the battery, generating heat as electricity does when it flows like this. From my experience the manually enabled pre-heat, as I explained in the previous comments, turns on the pre-heat symbol and displays the temperature, uses wayyy less power, since you are not discharging the unit to a battery and works much faster. Again you may have a dud, but my unit does the same thing as yours, unless I manually enable the pre-heat mode.

@HM_RELOADED

8 ай бұрын

I just re read the Gooloo GT4000 manual and it specifically says the Gooloo GT4000 should be hooked up to the battery for 100 seconds in order for the preheat technology to activate, or if the unit is Not hooked up to a battery just wait 100 seconds, then push the Boost button, then hook it up. So, the GT4000 preheat technology should work hooked up to a battery or not hooked up to a battery. But as another test I am going to throw the Gooloo GT4000 back in the freezer for a while, then after it comes out, I will Not hook it up to a battery, I will only wait the 100 seconds and push the Boost, just what the manual says. Let's see if the Gooloo GT4000 preheat technology activates faster than if it's hooked up to a battery, or if I have the same issue. I will let you know the outcome. You would think if the Gooloo GT4000 is hooked up to a battery or not, the pre heat technology should activate the same time, but we will find out.

Of course is a northstar it’s 108 in Houston

@HM_RELOADED

11 ай бұрын

That is way too hot for anyone...lol

Wich is better ?

@HM_RELOADED

6 ай бұрын

I absolutely love both the Gooloo GT4000 & Lokithor J401X, but if I must choose one, I would def choose the Lokithor J401X. Both units have mega power, both have preheat technology, both have nice LCD screens, both have multi-functional torch lights, both have portable power banks, both have boost functions, both are pricey, but I think the Lokithor J401X is heavy duty with very nice clamps, made just a bit better. Keep in mind that the Gooloo GT4000 has 4000A peak with 100-watt fast charge. The Lokithor has 2500A peak and 100-watt two-way fast charging. So, it's all a matter of personal preference. Both units

@adsss2331

6 ай бұрын

@@HM_RELOADED thank you very much ;) I want buy the lokithor 3250 but haven't on Amazon Europe .. so I buy the j401x a few seconds ago ;) ( I think a good price because 124 euro) after a gb70 Wich I really appreciate for 2 years and he's indestructible .I buy the successor gb150 and is a catastrophe.. is really bad ..

@HM_RELOADED

6 ай бұрын

@@adsss2331 Great choice, let me know how you like it

You never activated the heating feature on the Gooloo!

@HM_RELOADED

6 ай бұрын

Yes we did, over and over, on and off camera. We have numerous videos out about the preheat technology. If you read the manual it says to wait 100 seconds before the preheat technology activates, or push the Boost button and the preheat technology will activate. How many times do we have to push the Boost button to activate preheat technology. If you watched our other GT4000 preheat technology videos you will know that we push the Boost button a million times and we wait and wait like the manual says. The only other reason that it doesn't work is because its a defective unit. We have had a few other people say their Gooloo GT4000 does the exact same thing and the preheat technology never activates. So I'm assuming their are a few defective units out there, like all products. Thanks for the comment

Gooloo is not for Canada. in winter we experience -45 digree Celsius in winter

@beri232

8 ай бұрын

Their new GT4000 is perfect for Canadian winters. It has an automatic preheat function if the booster is too cold. I live in Alberta and plan to keep this thing in my car year round…. and I park outdoors year round.

@Mr-Faraz92

8 ай бұрын

@@beri232 i saw few reviews it takes forever to activate pre heat technology Lokithor just activated in few seconds and Goolo takes almost 7 to 8 minutes. Which is not good when there -40 cel outside.

@HM_RELOADED

8 ай бұрын

@deargill6137 some people say I may have a defective unit. So I am in the process of purchasing another Gooloo GT4000 to see for sure if my other unit is defective or not. Keep you posted

@Mr-Faraz92

8 ай бұрын

@@HM_RELOADED waiting for that Review. Lets see if it can beat Lokithor i have planning to buy one then will decide after review. Kindly do extreme cold test

@HM_RELOADED

8 ай бұрын

@@Mr-Faraz92 you got it

most jumpers work down to 4F so this test is kinda pointless. -40F would have been more interesting.

@HM_RELOADED

5 ай бұрын

Thats the whole point of the video. Just because a product advertises that it will work in -4 degrees, doesn't mean it will work. That's why I do these videos, because many jump starting companies false advertise. I test these jump starters to see if their products will actually work in frigid weather, and some of these jump starters do Not work properly in -4 degree weather, even though they advertise as such. So the video has an important point. Thanks for the comment

@justinlopez5895

5 ай бұрын

Yesper Armor with pre heat worked for me in -50 degree celcius. I was able to jumpstart 2 cars before charging it and proceeded to the 3rd car.

@HM_RELOADED

5 ай бұрын

@@justinlopez5895 Sounds like the Yesper Armor is a great unit. We will be reviewing it in the near future. Thanks for the comment

P r o m o s m 😭

No offense but did you read the instructions? You have to hold both buttons down to force it into preheat. Ive did this test multiple times and have never had an issue. The Gooloo GT4000 is a fantastic machine. Its my opinion you are giving the jumper a bad name by not using it properly.

@HM_RELOADED

7 ай бұрын

Yes, we read the instructions in the manual to a tee. And you are NOT supposed to hold down both buttons to force pre heat technology according to my manual and other Gooloo GT4000 owner manuals. My manual clearly says to either wait 100 seconds after the cables are hooked up to a battery, or if the unit is not hooked up to a battery to push the Boost button to put the unit in pre heat technology. If you kindly send us an email address, i will take a screenshot of the actual instructions for you so you can clearly understand what the manual really says. And if you have watched other videos, you would know that we always give Gooloo high marks. We have countless videos, so we are very aware how to use the Gooloo GT4000. So before making comments, you should really read the manual yourself before passing judgement, because no where in my manual and other Gooloo GT4000 manuals does it say to push both buttons to activate pre heat technology mode. I would love for you to send me a screen shot of your Gooloo GT4000 manual saying you must push the power button and the flashlight button (the only 2 buttons) at the same time to activate pre heat technology. I will be waiting for your screen shot. Also, we have been told by other people that their Gooloo GT4000 has the same issue as ours. So either we have defective units, or some units work, and some do not. Thanks for the comment

Если бы ты не лез своими кривыми руками к штатным, заводскиму кабелю он бы работал как положено! Ты нарушил сопротивление !Признайся честно! нахера ты кабеля резанул ? удлинить захотел😂😂😂

@HM_RELOADED

7 ай бұрын

Let me ask you a question: Are you out of your mind with that dumb comment. First of all, the Gooloo GT4000 is supposed to activate the preheat technology with or Without the cables attached, as the Manual says. There was no resistance broken as you say. If you watch other videos on the Gooloo GT4000 and the preheat technology, there are a few videos demonstrating the preheat technology activating With NO cables attached, so obviously the cables arent the issue then. Also we have and a few Subs contact me and tell me they have the same exact problem with their Gooloo GT4000 not activating the preheat technolgy. And guess what, those other people didnt mess around with their cables. So obviously your theory doesnt hold water. So obviously us cutting the wire cables didnt have any affect what so ever. We are thinking we have a defective unit like the other 2 people that contacted me to share their experience. And if you paid attention to the other videos, we extended the cables for a reason, obviously you didnt see the point in doing that. Please take a minute and read the Manual with your crooked hands. If you would have commented nicely without negativity, i would have been much nicer, but since you commented something negative, you get a negative response back. Please refrain from negative comments in the future. Thanks for the ignorance.