Great 👍. I guess the recessed voltage screw is deliberate so you can't easily make an accidental adjustment. I mean you wouldn't want to accidentally pump 84v into a 36v battery 😂
Yes, I was thinking the same thing, although for 99.9% of batteries it wont be a problem because the BMS will protect it. But if I had several batteries of different voltages without BMS that all use same charge connector, and I also add in some math to charge only to 90%, eventually a brain fart will occur. There is a misconception on what a “Smart Charger” is. Normal it means the charger is in direct communication with the BMS to know how mich current to send to charge, then balance, then turn off. But to the Chinese it means “it has LED display”. I would be very surprised if this charger is somehow monitoring voltage increase and will stop charging before reaching the voltage setting, which would be the bare minimum a smart charger would need to do.
*Get some Noctua computer Case fans. Open the case and see the level on the stock fans, look them up and it should tell you something like the MM thickness and size. Then order a PWM fan and splice it in to the existing connector on the circuit board which should also plug in just connecting the Positive/Neg leads and leaving the third, disconnected. The computer board within the charger generally will regulate the temp and hence the speed of the fans automatically. . The Noctua move about 20% less air so they will run longer yet they are very near silent. I use them in my Off grid solar throughout. All my charge controllers, inverters and chargers get these fans.*
This is a power supply not a smart charger. It won’t too up your batteries slowly and allow them to balance so make sure you’re bms has active balance most don’t. This things actually quite dangerous. Grin makes the only variable voltage smart charger I know of
I think the average viewer won’t really comprehend what you are saying, but i was going to ask if this charger has a transition from CC to CV like all 2s or higher lithium packs need, with or without BMS. I had a very cheap cordless pressure washer that uses 5s1p 18650 pack and came with a 21v 1a charger. The problem was it had no transition, it was 1a all the way until 21v, so of course due to voltage surge at 1/3c charge rate, coupled with different IR or each cell, the BMS closed the charge port and then the battery voltage settles down to 19-20v, and of course this put the battery that much closer to LVP when in use, so it would run 3-5 minutes before cutting off. Lol If it were my battery without any BMS, I would perfectly top balance it and then drain it and charge it at 15a and then as soon as the highest brick reaches about 4.18v, I would unplug the charger, let it settle, and record that voltage (83.2v for example). Then that would be the highest peak voltage I would use for that specific pack at 15a. For the other packs, similar testing at appropriate current.
@@E-bikeguy , I think his wording is confusing. But a simple test will show what it does. If you set it to 83.7v and 15a, and the current stays at 15a all the way until the battery is at 83.7v, its acting like a power supply not a Grin or legit charger. But if you set it to 83.7 and 15a, and it charges to about 82v and then the current tapers down to 0 at the same time at the voltage tapers up to 83.7, then its a legitimate charger not a power supply. Of its a power supply it just needs to be used differently but its still useful. We know the Grin is legit because there are videos showing the taper. Lol
@@E-bikeguy , ok, once you have the BMS you can show the difference between the Grin behavior and the new charger set at same voltage and amps as the Grin to see what happens to cell differential once the pack is nearly fully charged. Your batteries with BMS like the Troxus and Scorpion would probably not charge properly with the new charger set to the battery’s peak voltage, but there would be no easy way to show whats going on other than it stopping charging early when the port closes. Now that I have an ANT in my 48v16ah battery I can see when I start from perfect balance (4.1.05v in all 13 bricks) that as soon as i plug in a 2a charger, the cell difference between highest and lowest climbs to 0.013v from 0.000v. I can’t do more testing yet like fully charge to show the taper because Im still waiting on a slow boat from China to bring me the parts I need to get the motor running so I can drain the battery after charging it. The BMS will also tell me the actual voltage sag inside the battery at 15a load, not the voltage drop caused by all the AWG16 battery wire and 3 sets of cheap connectors the current must get through to get to the controller.
I was checking these out. Kinda new in the market. They look like tetired server power supplies. So if you dont flip that small switch the psu just keeps pumping power? I see the no bms gang burning things.
Great video. I'm really interested in this charger, and I hope you do a follow up video after using it for a couple months or more, just to see how well your batteries handle it. One question, how's the manual that came with it? Is it wrote so you can understand it, or is it more like Chinglish? Keep up the great work.
Lol@ "Chinglish" !!! That made me laugh out loud!! Damn right though, bloody Voilamart instructions I needed a magnifying glass to see the controller wiring info, serious.
Hey like the video I just wanted to know once you set up the charger to your battery once you try to charge a again do you have to set it up again or will it stay just like it was before
Have you tried any other throttles for high powered ebikes? like trigger throttles like on escooter or a thumb throttle..? Is twist throttle the best option for high power ebikes?
i was also thinking if i also purchased the 240Vac version I could get an adapter for EV charging stations and charge my battery pack at some of the free EV charging stations around town. that would be cool too and could max out at 20A
@@E-bikeguy my understanding is cells in parallel get charged together as a group? so you would divide your charging amps by your parallel groups to know the charge rate of each cell. Eg, 10 amp charging on 10p pack would be charging each cell at 1amp. Similar to how cells in parallel discharge together.
That charger has some nice features if you can set desired peak charge voltage to the nearest 0.1v and the peak charge rate to the nearest 0.1a. Does it have a 110v/220v switch (or autovolt) or is it locked into 110v if you get the US plug? I have 220v but the US plug here in the Philippines. That charger can charge at 20a here. Having the various charging options makes it easier to be gentle on the battery (charge to 80% at less than 0.25c) when you have time, while being able to fast charge a typical 20ah battery at 1c in less than an hour if you needed it.
@@E-bikeguy , yes, I recently bought a 120w digital soldering iron and the choices were similar, US plug 110v, all the other plugs i need an adapter for were 220v. But then other items like my 48v2a charger are 220v and have a US plug.
@@E-bikeguy finally got a response from the seller. He said it's a new design, to where it just auto shuts off. I can confirm it indeed did stop charging. I did have to set the voltage slightly higher on the charger to reach my desired voltage
No. The closest it can emulate PAS is if you set gear 1 to give 10a maximum (or suitable assist) to the motor, then you give full throttle and the motor gives a set amount of thrust and you add pedal power to go faster. So it’s more like Motor Assist than Pedal Assist. In theory you could also use gear two as a higher PAS level. But gear 3 would typically be set at the maximum performance you want from your motor/controller/battery. But there is no way to make the Fardriver give the motor more power based on your pedals.
Hi ebike guy I recently purchased this charger and when I flick the switch to the left it just stops running is that supposed to happen or should the fans keep blasting
Great 👍. I guess the recessed voltage screw is deliberate so you can't easily make an accidental adjustment. I mean you wouldn't want to accidentally pump 84v into a 36v battery 😂
Yes, I was thinking the same thing, although for 99.9% of batteries it wont be a problem because the BMS will protect it. But if I had several batteries of different voltages without BMS that all use same charge connector, and I also add in some math to charge only to 90%, eventually a brain fart will occur.
There is a misconception on what a “Smart Charger” is. Normal it means the charger is in direct communication with the BMS to know how mich current to send to charge, then balance, then turn off. But to the Chinese it means “it has LED display”.
I would be very surprised if this charger is somehow monitoring voltage increase and will stop charging before reaching the voltage setting, which would be the bare minimum a smart charger would need to do.
🤔🤔🤔🤔 that makes sense.
Just ordered the charger. Thanks for the review.
Heck yeah, it's a beast
Thanks bro, was racking my brain trying to find a charger for a 76 pack and this is adjustable!! Saw this on ali but was weary and loved your review.
Thank you well before you grab it I have a another video coming
*Get some Noctua computer Case fans. Open the case and see the level on the stock fans, look them up and it should tell you something like the MM thickness and size. Then order a PWM fan and splice it in to the existing connector on the circuit board which should also plug in just connecting the Positive/Neg leads and leaving the third, disconnected. The computer board within the charger generally will regulate the temp and hence the speed of the fans automatically. . The Noctua move about 20% less air so they will run longer yet they are very near silent. I use them in my Off grid solar throughout. All my charge controllers, inverters and chargers get these fans.*
This is a power supply not a smart charger. It won’t too up your batteries slowly and allow them to balance so make sure you’re bms has active balance most don’t. This things actually quite dangerous. Grin makes the only variable voltage smart charger I know of
I think the average viewer won’t really comprehend what you are saying, but i was going to ask if this charger has a transition from CC to CV like all 2s or higher lithium packs need, with or without BMS.
I had a very cheap cordless pressure washer that uses 5s1p 18650 pack and came with a 21v 1a charger. The problem was it had no transition, it was 1a all the way until 21v, so of course due to voltage surge at 1/3c charge rate, coupled with different IR or each cell, the BMS closed the charge port and then the battery voltage settles down to 19-20v, and of course this put the battery that much closer to LVP when in use, so it would run 3-5 minutes before cutting off. Lol
If it were my battery without any BMS, I would perfectly top balance it and then drain it and charge it at 15a and then as soon as the highest brick reaches about 4.18v, I would unplug the charger, let it settle, and record that voltage (83.2v for example). Then that would be the highest peak voltage I would use for that specific pack at 15a. For the other packs, similar testing at appropriate current.
No, it's not a power supply, and it's variable just like my grinn, and it can charge lipo, and lead acid batteries
@@E-bikeguy , I think his wording is confusing. But a simple test will show what it does.
If you set it to 83.7v and 15a, and the current stays at 15a all the way until the battery is at 83.7v, its acting like a power supply not a Grin or legit charger.
But if you set it to 83.7 and 15a, and it charges to about 82v and then the current tapers down to 0 at the same time at the voltage tapers up to 83.7, then its a legitimate charger not a power supply.
Of its a power supply it just needs to be used differently but its still useful. We know the Grin is legit because there are videos showing the taper. Lol
Actually when I come to almost to 83.7 volts the amps will go down all the way to trickle when when finish
@@E-bikeguy , ok, once you have the BMS you can show the difference between the Grin behavior and the new charger set at same voltage and amps as the Grin to see what happens to cell differential once the pack is nearly fully charged.
Your batteries with BMS like the Troxus and Scorpion would probably not charge properly with the new charger set to the battery’s peak voltage, but there would be no easy way to show whats going on other than it stopping charging early when the port closes.
Now that I have an ANT in my 48v16ah battery I can see when I start from perfect balance (4.1.05v in all 13 bricks) that as soon as i plug in a 2a charger, the cell difference between highest and lowest climbs to 0.013v from 0.000v.
I can’t do more testing yet like fully charge to show the taper because Im still waiting on a slow boat from China to bring me the parts I need to get the motor running so I can drain the battery after charging it.
The BMS will also tell me the actual voltage sag inside the battery at 15a load, not the voltage drop caused by all the AWG16 battery wire and 3 sets of cheap connectors the current must get through to get to the controller.
Looks a nice change 👍 also are you using 8mm or 10mm wide nickel strap on your 21700 cells please
I'm using. 02 x8 nickel strip
Thank you
@motardmad8652 no problem 😊 👌
I was checking these out. Kinda new in the market. They look like tetired server power supplies. So if you dont flip that small switch the psu just keeps pumping power? I see the no bms gang burning things.
It would not even start up, they told me that it's a safety switch
@@E-bikeguy that's good
Great video. I'm really interested in this charger, and I hope you do a follow up video after using it for a couple months or more, just to see how well your batteries handle it. One question, how's the manual that came with it? Is it wrote so you can understand it, or is it more like Chinglish? Keep up the great work.
@3:54
Lol yes it doesn't come with a manual so I contact the seller and they showed me how it works, and yes I will do a long term video of this charger
Lol@ "Chinglish" !!! That made me laugh out loud!!
Damn right though, bloody Voilamart instructions I needed a magnifying glass to see the controller wiring info, serious.
@mickyb.8014 I know right they need way better instructions or something lol
So that's the way to charge a battery without a bms?
Yes smart charger, set the voltage and let it do its thing lol , this is how I charge all my batteries
Hey like the video I just wanted to know once you set up the charger to your battery once you try to charge a again do you have to set it up again or will it stay just like it was before
No, once I set the voltage it's all plug and play
Tommy, I bought a QS 3000w hub. Did you have to modify the brakes to make it fit right on the brake rotor? Doesn’t seem to line up very well. Thx
Well yes, I had to add washers on the rotor to bring it out 1mm so that the caliper don't rub on the motor
Yes you need a rotor spacer sir. Or it will rub.
Hey im looking for new fast charger do you still recommend this one? Thanks
Excellent video, very informative and I just bought one myself from ailbaba express 👍🏾 🔥
Heck yeah 💯 it's a beast 💪
Awesome 👌 I must have one. Thank you 👍
No problem 😊 💯
Yo After watching your video i bought one also. How high can i set the amps to?
Thanks again for making this great informative video.
It depends on the country. in the US, it is 15a 110v max, but everywhere else, it's 20a 220v max
@@E-bikeguy ok thx
Have you tried any other throttles for high powered ebikes? like trigger throttles like on escooter or a thumb throttle..? Is twist throttle the best option for high power ebikes?
They all have there advantages and disadvantages, basically personal preference, but I will be upgrading the throttle for more feedback.
Is this a meanwell power supply?
It's a charger
just the charger i need.. pretty awesome have you tested accuracy with a clamp meter and DMM? its pretty cheap and I'm curious how accurate it is.
No I haven't but that is a good idea, I have another video on another charger compared to this one soon
@@E-bikeguy do you have a link to that video?
i was also thinking if i also purchased the 240Vac version I could get an adapter for EV charging stations and charge my battery pack at some of the free EV charging stations around town. that would be cool too and could max out at 20A
fast charge is great but it also reduces significantly the life of your battery
I've been told just charging at just 10amps each cells will be charging at just 1amp a piece
@@E-bikeguy my understanding is cells in parallel get charged together as a group? so you would divide your charging amps by your parallel groups to know the charge rate of each cell. Eg, 10 amp charging on 10p pack would be charging each cell at 1amp. Similar to how cells in parallel discharge together.
@EBikeBuilder_ correct, I was told the same, plus it do make sense!!!!! 💯
That charger has some nice features if you can set desired peak charge voltage to the nearest 0.1v and the peak charge rate to the nearest 0.1a.
Does it have a 110v/220v switch (or autovolt) or is it locked into 110v if you get the US plug? I have 220v but the US plug here in the Philippines. That charger can charge at 20a here.
Having the various charging options makes it easier to be gentle on the battery (charge to 80% at less than 0.25c) when you have time, while being able to fast charge a typical 20ah battery at 1c in less than an hour if you needed it.
I noticed when you buy it, it do have I selection where you can choose a 110v or220v and the 220v will charge at 20amp
@@E-bikeguy , yes, I recently bought a 120w digital soldering iron and the choices were similar, US plug 110v, all the other plugs i need an adapter for were 220v. But then other items like my 48v2a charger are 220v and have a US plug.
I notice you have commented as recently as 11 days ago so i assume it is still performing well?
Yes, I'm going to upload a video soon about it and another charger
I have two of these, first one is perfect, second one is missing the cut off switch
Oh wow that one I gave to my son
Use thus to get the battery charged the use your grin to balance
I'm using it as we speak
@@E-bikeguy i still like this charger and will use it as well. Great find
Just got this charger. Mine is missing the "safety switch." I use a timer anyways. But what you think?
As long as you know when to stop charging you should be fine
@@E-bikeguy finally got a response from the seller. He said it's a new design, to where it just auto shuts off. I can confirm it indeed did stop charging. I did have to set the voltage slightly higher on the charger to reach my desired voltage
Does that fardriver controller have pedal assist?
No. The closest it can emulate PAS is if you set gear 1 to give 10a maximum (or suitable assist) to the motor, then you give full throttle and the motor gives a set amount of thrust and you add pedal power to go faster. So it’s more like Motor Assist than Pedal Assist.
In theory you could also use gear two as a higher PAS level. But gear 3 would typically be set at the maximum performance you want from your motor/controller/battery.
But there is no way to make the Fardriver give the motor more power based on your pedals.
No it doesn't. I believe so, the one I have doesn't.
Hi ebike guy I recently purchased this charger and when I flick the switch to the left it just stops running is that supposed to happen or should the fans keep blasting
Yes it should stop when you put it on the left with no battery connection keep the switch to the right it's now a power supply
Sorry for late reply thanks for your expertise
Yeah i tried looking that up couldnt find it so i could add in cart
Want me to send you a link
@@E-bikeguy sure
@@mixmaster1825 Just found this amazing item on AliExpress. Check it out! $99.25 50%OFF | 20A 100V 24V 48V 72V 60V 67.2V 84V Li-ion Lifepo4 Lithium Battery Charger Fast Charge ebike 13S 16S 20S 24S acid lead charger
a.aliexpress.com/_mLgCzUO
@@E-bikeguy i have 72v 30ah battery . how fast does it charge im interested . and i looks difgicult to understand 🤣🤣🤣
@mixmaster1825 lol maybe about an hour and a half
Thanks!
They are good budget chargers
very good the best i have one
thats cool as shit wow.
It charge fast too
repurposed server psu to charger, like we built in the old days...
I bought 2 of these one died in a month one died in a week
Man nice one for making this video I am very interested in that charge and it does look quite well made $ 100 is a great price cheers 🚵✌
Yeah, I had my eye on this charger for a while so I just like I'll get it and see what it's like and to be honest, it's quite nice.