18650 cells only go up to 3500mah/cells so 4P would only be 14AH even if they were legit, but these ones were junk/fake and barely held any capacity at all before going to low voltage cutoff (I tested it at 20amp discharge - around 1000w)
How did you spot fake one? I am thinking on buying from aliepxress too from Titan West Electric Bike Store seems to be 314€ for 48V17,5Ah or 702€ for whole bafang converting kit
I'm with you on that each cell is 2500mAh - they'd have to be 5000mAh each cell to get 20Ah out of a 13s4p battery and such cells are much more expensive.
Ive got a large ebike battery in a similar style of case which i can hear the pack move around inside case over bumps, also hear it if i remove the pack from bike and turn it upside down or certain angles side to side. Am i able to open the case and pad it out? Not only is the noise annoying but im paranoid its going to eventually wear or damage something, causing a short etc... Its not a huge anount of movement, but its enough. I need to replace the lock in the pack anyway. Thanks
I had my ebay hailong battery for 3 years put 725 miles on it then yesterday the power switch on the battery stops working and when i charge it the light on the charger switches between red and green it also smells kinda like a phone battery thats been smashed with a hammer I'm storing it in a safe place outside and I don't trust it anymore
I was hoping you would show how the wires are connected to the battery....I gave a robot vacuum, they make the packs, but none ,for the connecting end on mine
I have a bad circuit board or female 5.5mm barrel style input port. It literally sparked when I plugged in the ac adapter. The battery has no fuses. The battery will not accept the charge says green. I can charge directly on the terminals when I took it apart so the cells are good. Any idea where to get the battery charge controller circuit board? The stamp on the bottom is SP-M13-016-A01 / SIZE:80*38*1.6MM / DATE :2016-05-27 / UL 94V_0 ROHS. Google gave me no results amazingly enough. Thanks in advance for your help & content!
Hiya quite possible just need a new generic BMS. You HAVE to check the cells are all in balance though, each group needs checking for equal voltage. If all ok Then you can just replace BMS and off you go (provided no smart functionality)
But you have to check each cell group individually to make sure! AliExpress/eBay would be easiest I suppose 👍 if you're in the UK they're on my website :)
Sadly, mine will be here in a day or two, wish I saw this a few days ago. I will be looking inside mine as well. Mine is supposed to be 21700 panisonic cells, so having a bit of knowledge about this stuff, I will investigate and if they are not, a full refund will be requested, as well as false advertising claim filed against this seller and Ebay.
Thinking about it... Did you try it? 90€ for 36v20Ah or 150€ for 48v30Ah... Even crazier, some are sold by 10+years old stores with 90%+ rating, I dunno how they do it, other than refunding every angry customers, and even then...
I also got one like this; rated as 20AH but feels like 12 to 15 for 200 USD in 2021. Another problem is the power switch on mine do nothing; it's always on and the USB port has power but shutdown after a few second of power draw. Don't buy from unknown store.
@@EbikeRepairs My battery has a sticker that says 100 Ah, but I obviously know it's wrong. On full throttle I get maybe 10km of range. It was only 50€ including the charger and shipping, so I can't complain.
at first it depends if it's 18650 or 21700 cells... and say we use the bigger 21700 cells there are 4 , 4.2, 4.5 or 5 Ah cells higher capacity often has lower discharge current so some home-brewer swear on the 4.2 or 4.5 Ah cells I have 5 Ah cells but 10 in parallel so cell current is lower and I can safely use the 5 Ah cells
I bought a unity power pack 52V25Ah ... works fine (about 350 bucks) only thing I had to modify is I added an inline diode in MINUS rail of the charger socket cause my genuine pack also had a diode in that charge port and I wanted both packs to be charged to same voltage with ONE bigger charger and a y splitter cable (sidenote I do NOT use a "battery blender)... with the diode added in the upp pack the charger sees both batteries but one pack does not see the other upp 52V 25Ah added my bike had a 25 Ah also and now I have 50 Ah and lower voltage sag under load plus lower current per cell.. means lower wear/aging of the cells and about 2 miles per hour topspeed gained with the diode inline I had to lift a bit the charging voltage ... but my charger is setable between 42V and 84V and between 2 A and 15 A ... packs max charge current is 5A (in sum 10) but to keep the stress a bit lower I set my charger to 8 A and not to 10... all works fine now for about 1000 miles I use my packs down to 44V (,under load) means about 45.5 to 46 without load... charge power meter says 2.2 to 2.4kwh to charge to full (if I would use down to 40V or 42V it should be 2.6 to 2.8 kwh) so calculating over the thumb those packs HAVE THE ADVERTISED 25 Ah
![Felix "Unfair" | [Stray Kids : SKZ-PLAYER]](http://i.ytimg.com/vi/Oswujxm2Ag0/mqdefault.jpg)
Where would you recommend getting batteries from? Mines not holding power as good as it used too.
Reputable supplier! Yose power/Bmsbattery/greenbikekit are known. Or a battery builder local to you.
Yes Yose Power selsl the originals.
Maybe there are more minutes in a Chinese amp hour because it's a big county?
This is possibly one of the best comments I've ever seen, thankyou.
Just a simple translation error. Am I right ;) For me, the blue wrap is always a dead give away. Why hide the cells if not intentionally?
Big cheating country
@@sankaplays3098 The blue heat shrink on top of Barley Paper is entirely normal for most if not all battery packs, or at least the ones I've seen.
it looks pretty good, 4 packs does sound like a 20ah. So any reason for your suspicion? Thanks!
18650 cells only go up to 3500mah/cells so 4P would only be 14AH even if they were legit, but these ones were junk/fake and barely held any capacity at all before going to low voltage cutoff (I tested it at 20amp discharge - around 1000w)
@@EbikeRepairs now I understand and agree with you thank you so much.
@user-nz5wn6ut4f no thankyou!
How did you spot fake one? I am thinking on buying from aliepxress too from Titan West Electric Bike Store seems to be 314€ for 48V17,5Ah or 702€ for whole bafang converting kit
The customer brought up that it seemed too good to be true price wise, and it was!
Hi M8 .You mentioned you tested the AH's of the battery . How can I do that please ?
I have a capacity tester, I did a video about it on the channel if you search :)
I'm with you on that each cell is 2500mAh - they'd have to be 5000mAh each cell to get 20Ah out of a 13s4p battery and such cells are much more expensive.
they dont exist in 18650 format, either!
Brother where did you find a 4pins one? I'm looking for aftermarket batteries for my duotts c29 and I can't find 4pins.
Not sure sorry but you can buy new connectors and solder them on?
Some on sale on Ebay now purporting to be 50ah and even 60ah from a case that size, ha ha.
Seems legit 🤣
Ive got a large ebike battery in a similar style of case which i can hear the pack move around inside case over bumps, also hear it if i remove the pack from bike and turn it upside down or certain angles side to side.
Am i able to open the case and pad it out? Not only is the noise annoying but im paranoid its going to eventually wear or damage something, causing a short etc...
Its not a huge anount of movement, but its enough. I need to replace the lock in the pack anyway.
Thanks
So I can't encourage you to open a lithium battery pack - but if it was me, I'd sort it out before it caused a problem. Eva foam tape is your friend.
@@EbikeRepairs already done, rebuilt and been ridden and charged twice
How do you test the Amp Hour on the battery?
I have a battery capacity tester ! It's very handy.
@@EbikeRepairs Ok, Ill have to get one. Thanks!
Any recommendations?
@@PerryLevy EBC B20H
@@EbikeRepairs thanks
I had my ebay hailong battery for 3 years put 725 miles on it then yesterday the power switch on the battery stops working and when i charge it the light on the charger switches between red and green it also smells kinda like a phone battery thats been smashed with a hammer I'm storing it in a safe place outside and I don't trust it anymore
@@samual6425 sounds like leaky cells! Do not charge it!
I was hoping you would show how the wires are connected to the battery....I gave a robot vacuum, they make the packs, but none ,for the connecting end on mine
Sorry - I've got lots of other videos, though!
I like that your video for me has a sponsored add for Ali express lol
😂😂 they're listening!
Hahaha even now😂
Haha
Good for exposing them👍👍
Thanks dude 👍
I have a bad circuit board or female 5.5mm barrel style input port. It literally sparked when I plugged in the ac adapter. The battery has no fuses. The battery will not accept the charge says green. I can charge directly on the terminals when I took it apart so the cells are good. Any idea where to get the battery charge controller circuit board? The stamp on the bottom is SP-M13-016-A01 / SIZE:80*38*1.6MM / DATE :2016-05-27 / UL 94V_0 ROHS. Google gave me no results amazingly enough. Thanks in advance for your help & content!
Hiya quite possible just need a new generic BMS. You HAVE to check the cells are all in balance though, each group needs checking for equal voltage.
If all ok Then you can just replace BMS and off you go (provided no smart functionality)
Yes all the cells are good I recharged the batter using just the terminals. Where can I get a generic BMS may I ask? Thanks a ton for your assistance
But you have to check each cell group individually to make sure! AliExpress/eBay would be easiest I suppose 👍 if you're in the UK they're on my website :)
I would not use anything sharp on a lipo battery unless you want to see fireworks.
Unfortunately I can't open it another way - just be very careful and have a bucket of sand/large outdoor area available if needed.
... and someone with a video camera on standby too, think of the YT views 😬🤣🔥 @@EbikeRepairs
those are the ones that catch fire.
what a hazzard..
@FlatSmacked very dangerous!
if it would be 21700 cells with 5 Ah .. then we could see (nearly) 20Ah... but never with 18650 cells
Yes it's quite clearly fake 🤥
Sadly, mine will be here in a day or two, wish I saw this a few days ago. I will be looking inside mine as well. Mine is supposed to be 21700 panisonic cells, so having a bit of knowledge about this stuff, I will investigate and if they are not, a full refund will be requested, as well as false advertising claim filed against this seller and Ebay.
@@billk9628 they're not all fake! I don't know if Panasonic even make 21700 cells though
Were you able to get a refund? This could be a good strategy... buy obviously-fake batteries and submit claims on them
Its a customers battery sorry I don't know.
Thinking about it... Did you try it? 90€ for 36v20Ah or 150€ for 48v30Ah... Even crazier, some are sold by 10+years old stores with 90%+ rating, I dunno how they do it, other than refunding every angry customers, and even then...
I was looking for the same exact battery, it only cost 230€....I will not buy it after this video thanks ❤
@@fastkayak0148 happy to help!
I bought a UPP 52V 25Ah and it's ok
they also make 48V packs in 25 Ah
costs roughly 350 bucks
@@dg9bfc aren't they the ones that got recalled?
@@EbikeRepairs no idea .. bought a few weeks ago and it works fine but it may show up later ... have to check that
@@dg9bfc Google 'upp battery recall '
I also got one like this; rated as 20AH but feels like 12 to 15 for 200 USD in 2021. Another problem is the power switch on mine do nothing; it's always on and the USB port has power but shutdown after a few second of power draw. Don't buy from unknown store.
Hard luck! yose poser is reputable :)
That case is 36v or 48v
48v I think
Where would you buy a new one? i need a battery in the same hailong 4 pin case ideally but don't want a scam.😂
@@nigelkelly2286 if you're in the UK - get one built! Lots of builders can help you out :)
Is chamrider trustworthy?
@@AvaComans I don't think they use name brand cells, but not inherently bad
What exactly was the problem with this battery then? Appart from unbranded cells it looked perfectly fine. My battery looks the same.
Rated capacity Vs real capacity was totally bogus. I can't recall the figures but I think it was supposed to be 15ah and only around 5ah
@@EbikeRepairs My battery has a sticker that says 100 Ah, but I obviously know it's wrong. On full throttle I get maybe 10km of range. It was only 50€ including the charger and shipping, so I can't complain.
@@AntonFetzer50€ should almost be the BMS alone.. not the whole pack.. I wouldn't trust such a cheap battery..
@@isavv_ well it works. 10km of range for 50€ sounds like a good deal for me even though the manufacturer lied about the capacity.
@@AntonFetzer Yeah but where they cut corners will be my concern..I would open the battery and check myself if everything is ok just to be sure.
By Circuit board I mean BMS of course
thanks love the content
Thanks!
They are samsung cells
@@vorkev1 I don't think they are genuine
How about some testing instead of just a skeptical opinion. There were no significant visual negatives, just suspicion because of low price.
I did test it off camera - at 36 seconds I tell you that :)
thats 48v 10 Ah battery
not quite!
All battery on ebike are same lithium battery, no other entity battery. Unless some battery mixed fake sand battery. That's the time you freak out.
They're not all the same! Some cells are better than others 👍
They're not all the same! Some cells are better than others 👍
Just because it's lithium doesn't mean it's the same.
at first it depends if it's 18650 or 21700 cells... and say we use the bigger 21700 cells there are 4 , 4.2, 4.5 or 5 Ah cells
higher capacity often has lower discharge current so some home-brewer swear on the 4.2 or 4.5 Ah cells
I have 5 Ah cells but 10 in parallel so cell current is lower and I can safely use the 5 Ah cells
Who makes the best 52v battery for making an e bike
Em3ev or electroncycles
I bought a unity power pack 52V25Ah ... works fine (about 350 bucks)
only thing I had to modify is I added an inline diode in MINUS rail of the charger socket cause my genuine pack also had a diode in that charge port and I wanted both packs to be charged to same voltage with ONE bigger charger and a y splitter cable (sidenote I do NOT use a "battery blender)...
with the diode added in the upp pack the charger sees both batteries but one pack does not see the other
upp 52V 25Ah added
my bike had a 25 Ah also and now I have 50 Ah and lower voltage sag under load plus lower current per cell.. means lower wear/aging of the cells and about 2 miles per hour topspeed gained
with the diode inline I had to lift a bit the charging voltage ... but my charger is setable between 42V and 84V and between 2 A and 15 A ...
packs max charge current is 5A (in sum 10) but to keep the stress a bit lower I set my charger to 8 A and not to 10... all works fine now for about 1000 miles
I use my packs down to 44V (,under load) means about 45.5 to 46 without load... charge power meter says 2.2 to 2.4kwh to charge to full (if I would use down to 40V or 42V it should be 2.6 to 2.8 kwh)
so calculating over the thumb those packs HAVE THE ADVERTISED 25 Ah
I found a 72v 60ah one for $445
In a Hailong case?
@@EbikeRepairs think so
I do not beleve it cus I have a 48volt 23 ah battery same sells and it's actuly a little higher
This one was fake, I tested it
nothing pisses me off more than fake junk
Annoying isn't it!
U want cheap and Quality no way I us this battery 48v 30h it’s no bad 160£ I do my job 8h
Mhm
Mine is getting warm and it's winter
uh oh! possibly not high drain cells, or high resistance connections!
Ringo !
👍