Aventon Aventure Dead Battery Disassembly and Diagnosis
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- Опубликовано: 4 окт 2021
- As I awaited a replacement battery for my Aventon Aventure, I decided to diagnose the issue with my dead battery by dismantling it. I was highly impressed with the quality of the components. These things are made to last and water-resistant to the extreme. There are rubber seals on the end caps and rubberized caulking holding the components in place. A classy piece of technology. .
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My Aventure’s battery failed the exact same way. I found your video and decided to take mine apart (what a pain) since I have a new one on order. The exact same component on the controller board failed the same way; even the mark on the plastic cover is nearly identical. My battery was 3 months out of warranty but I think Aventon owes us something if this is common. I do NOT expect to have to replace my battery every year.
Interesting. This confirms my belief that Aventon received a bad lot of controller boards and because of the pandemic had no efficient way to replace them. When I got my replacement battery, it included five pages of FEDEX Hazardous Materials Certification shipping information with 26 other names from around the country also receiving new Lithium Ion Batteries. To be fair, I had a bad battery in the Sondors Rockstar I purchased several months later. The signifcant difference was that Sondors replaced it within days and it took Aventon over a month. Customer Service matters when purchasing an E bike.
Sorry, Just saw this post. That's very interesting and supports my theory that the chip manufacturer sent Aventon a batch of chips with the same flaw. You are correct. One should not have to replace a battery for many years.
The battery is arranged as 13x3, So 39 cells is correct, but you have 13 groups. each group containing 3 cells in parallel. Those are not 1.6V cells. They are 3.6 cells. Full charge is 4.2V, mid charge is 3.6v. So 13 times. 3.6 is about 48V.
I cannot see the range dial on your voltmeter, but you should be measuring 4 volts from B13 to B12, B12 to B11, etc. Not 8 volts, Yu're reading your meter wrong, or it's badly uncalibrated.
You are right about the BMS being bad,
Merle, Hi. I got similar feedback from a fellow on an E-bike forum. I'll calibrate my voltmeter and check it again.However, I don't see a possible use for these cells and will simply recycle them and be done with it. Thanks for the comment and education. I appreciate it.
Very interesting- well done!!
Greg, Yes, it's interesting see the level of thought that goes into one of these batteries. Thanks for the comment.
HELLO , i have a giant bike wich my battery was stolen "Energypack 300 " i found a recycled battery from another bike but ive connected the postive and the negative to the battery "leaving the bleu wire " and it works fine for couple of seconds then the assist shutdown and the motor stops any ideas how i can bypass this or any other information regarding the bleu signal wire thank you
Hi, Sorry. I have no information about the Giant line of eBikes. Have you contacted the manufacturer? We own 3 Ebike's - an Aventon Aventure, a Sondors Rockstar and a Specialized Turbo Levo. The lesson I've learned is to only purchase from well-established companies with impeccable service records. At this point I would only buy an Ebike from TREK or Specialized, and maybe a few other manufacturers. Companies that have a large network of outlets. I know this isn't the question you were asking, but it may be something to consider when you are looking for your next bike. Good luck.
Excellent job diagnosing the problem. Ebike Marketplace in Las Vegas can replace the bms board. Save your money. Cost shouldn't be over $120 dollars.+ round trip shipping.
Howdy and thanks for the tip. Damn, I wish I had known about Ebike Marketplace before. Unfortunately I discarded the aluminum case and promised the batteries to someone for another project. I will keep this place in mind for future repairs.
Thank you for putting this video together. I am a finance guy and only know that V*A=WH. But my friend is a reitred United Captain and aerospace engineer who fixes electrical equipment for fun. I will defer to him if I have problems greater than VxA :)
Howdy, you're welcome. After spending much time on this battery I came to the conclusion that it's not user-serviceable. Fortunately, the batteries I now have on my three Aventures are working perfectly. Have a good one.
Your blue wire is a signal wire it tells the controller the state of charge of the battery. The black and red will just power up the controller. To discharge the batteries just get a 12v bulb and attach it one at a time to each battery pack until it dies. Then move it to the next pack.
You don't want to discharge it blindly.
HELLO , i have a giant bike wich my battery was stolen "Energypack 300 " i found a recycled battery from another bike but ive connected the postive and the negative to the battery "leaving the bleu wire " and it works fine for couple of seconds then the assist shutdown and the motor stops any ideas how i can bypass this or any other information regarding the bleu signal wire thank you
Anybody know where I can get the shell/cover for Aventon Aventure battery?
Aside from Aventon, no. I'll wager that's a difficult part to come by.
At 3:57 you can see scorch marks on the yellow plastic. It looks like some other parts may have overheated as well. How good are you at replacing surface mount components?
I believe they are using the heavy aluminum casing as a heat sink for the battery. It must be effective since I've never felt the battery get even warm while charging.
Hi Mike, Replacing and soldering these components is outside my skill set. Although, I would give it a shot with some guidance. It would be a shame to recycle these batteries.
I think you are right about the aluminum enclosure acting as a heat sink. Makes sense and it's certainly effective. Now that I have a normally functioning battery with which to make a comparison, I realize there were problems with the original battery from the start. One press the of the button is all it should take to turn the battery on. The original one usually took several attempts. The feedback I got from Aventon seems to confirm my suspicions that a bad lot of BMS chips were installed in a number of batteries. They are now in the process of replacing them. Thanks for the comment.
@@webopus I can't give any help regarding replacing the surface mount components. It's hard to say if these were faulty or if they were the victim of a bad controller chip. Aventon would be the source for a replacement board but I doubt that's a part you can order much less reassemble everything the way it was from the factory. Perhaps you can find an enthusiast who can make use of the cells.
@@mikebryant538 that's part of the reason I made this video. I'm hoping somebody has a suggestion of a possible use for these cells and would take them off my hands. The aluminum enclosure I'm keeping. I can see lots of possible uses for that. It was tough enough to get a replacement battery so I'm not holding out any hope of finding a new BMS Chip.
I have this exact battery and it does not take a charge. Aventon replaced the battery but did not require me to return it. The battery turns on but you cannot charge it. Is it repairable?
I live in Virginia.
Stephen, yes, I had exactly the same situation. I have searched and searched for a place that might repair/replace the battery management chip but have been unsuccessful. These batteries that fit into the frame of the bikes are much more complicated to repair than batteries is that rest outside the frame. As you can see, disassembling one is a major job and extremely time consuming. So even if somebody had the appropriate BMS chip the cost of the time involved in assembly and reassembly would be prohibitively expensive. In the comments below somebody may have recommended a place in Las Vegas, but if I remember correctly, I contacted them and they were unable to do the job. If you find a place that can do repairs on these batteries please post it in the comments. It looks like I may also have a Sondors battery that I may need to repair. Have a good one and enjoy your E bike.
Hello Charles - How long before Aventon responded with the new battery and how did they diagnosis the problem ?
Hi Juan, I diagnosed the problem by virtue of the fact that the battery would not turn on. A normal Aventon battery will light with a quick touch of the On Button, but mine was buggy from the start. After a month, it would not turn on at all.
It took me 33 days from the submission of my warranty form until I received a new battery. I had to jump through quite a few hoops until I was finally able to contact the DIRECTOR OF CUSTOMER EXPERIENCE who resolved the delay within a few hours. If you are having trouble getting a response from Customer Service I strongly suggest that you file a complaint with the California Better Business Bureau website. That's how I ultimately resolved things. If you have any further questions, let me know.
@@webopus Thxs and safe cycling!
what size screw do I need if I lost mine?
for the cover
@@davidwiniger3799 Hi David, I saw your question on the Electric Bike Forum as well. Unfortunately, I don't know the size and have no way of accurately measuring one. However, the cover is very tight once it's slid onto the battery housing and will be held in place by the frame of the bike once inserted into the battery compartment. I wouldn't worry about it. I sincerely believe it will not slide off.
I wonder how far " a while back " is. All the reviews I've been reading about these otherwise great bikes say they have abandoned customer service.
Yes, that's correct. Customer Service is a problem. After 32 days without a battery I posted a video about the dismal customer service and made a complaint to the Better Business Bureau. Within 2 hours a very nice man further up the food chain at Aventon called me and offered to send me a new bike. His only request was that I remove the video. I complied. I also received a new battery that's working perfectly. It took some drastic action, but I finally had my issue resolved satisfactorily. The bikes are terrific, but if you have a problem you're in for a considerable wait. In all fairness, the pandemic has caused supply issues in every sector. Thanks for the comment.
How do you fix your your battery when it doesn't want to charge to the electric adventure bike
Hi Steve, I don't understand your question. If the battery doesn't charge you need to contact eventing to get a new one. Is that a problem? Are you still under warrantee?
You may be able to fit a generic BMS in the case. 13S BMS are easily available from Amazon. The cells look like they are 21700 cells. They are configured as 13s3p which give you a 48V 15ah pack. If your motor is less than 750W, you can get a 20A BMS. Anything more than 30A will be thicker and won't fit in the case.
Hello and thanks. Unfortunately, I disposed of the case and many of the components. Now I'm looking for a place that will recycle the batteries and not charge me an arm and a leg. Batteries Plus will take them, but for a charge.
@@webopus I'll Buy those batteries cells off of you!! I use them in my RC planes..please let me no, I'm certainly interested in buying some or all of them.
@@ChristopherF_1971 HI, they are yours if you can find a way for me to ship them to you. There are restrictions in shipping LION batteries that are a bit complicated. The entire battery pack weighed about 12 pounds before I disassembled it, so I'm guessing it weighs a little under 10 now. Do you live anywhere near Phoenix?
@@webopus I live in SE ohio. I've never had issues mailing over ground Shipping through USPS. I'd have to check again unless things have changed. I was told air shipping is what they frown on with these batteries.
@@ChristopherF_1971 The reason Aventon could not remove a battery from an unopened box containing a new bike was due to certain restrictions in shipping these batteries via UPS or FedEx. They fall under a special classification and I'm not sure precisely what needs to be done. In looking at the shipping receipt I received from FedEx with the new battery, it requires a "hazardous material certification" for lithium ion batteries, "hazardous class/division number 9." And the weight is 8 pounds. Perhaps that will help
what cells are they? lg, samsung, panasonic?
I have no idea. There are no discernible markings on any of the cells.
Hi Charles and thank you for this video. It is a walk through that hopefully not many of us would ever need to experience personally. I just got my Aventure and noticed the battery specs on the back show Nominal Voltage:47.32Vdc and Rated Energy: 657.748Wh. I thought this should say 720Wh according to all the posted battery specs. If you divide 657 by 47.32, I get 13.9. Shouldn't this be 15? Can you check to see what yours say? I called Aventon and they said, "make sure to balance your battery and you will get 720Wh from it" and some line about "lithium ion batteries are volatile and you will get a range" of output. I know there are supply chain issues and they are working to get bikes out with substitute part with "equal or better" parts if they have to change something. I'm afraid that substituting 657Wh for 720Wh isn't a fair swap. Thank you!
Hi Jeff, I have 3 Aventures and none of my batteries labels show anything similar to yours. The simply read "48V 15Ah 750Wh" with no further elaboration. When did you purchase yours?
@@webopus I have had it 4 days, direct from Aventon. I think I have an under powered battery and they are trying to bluff. I don't think I will get the total miles from a 13.9 amp hour battery compared to a 15Ah. Hmmm wonder what recourse I have?
@@jeffmiller2806 that certainly is a consideration. You can contact a Aventon customer support but be prepared for a lengthy ordeal. I waited for over 32 days for a replacement battery, but they ultimately made good on my warranty claim. Chip manufacturers all over the world are under enormous pressure to produce more chips, but all this pandemic bullshit is hindering their progress. Every sector of the electronics industry is being hit hard by this - and the E bike industry is no exception. I'd contact Aventon customer support and mention that you did not receive the battery that was advertised for this product. Let me know what happens.
Jeff, I have to contradict myself. I just checked the battery once again on our newest Aventure, and it has the same markings that you've described. I've been unable to find any descriptions of precisely what that means. You might want to send a question to the guy who runs Bolton E-Bikes in California. He is often able to answer a lot of these cryptic and sometimes complicated questions. Here's a link to his RUclips Channel. Please let me know when you find out. ruclips.net/channel/UC8pIKzo5py1zt3U2O-Bqo3A
@@webopus Oh wow. How long have you had the newest one and did you get it direct? I'd be curious to know if you get the same range from all 3 bikes. I have watched the Bolten bike guy. Yeah, good call. I'm sure he'd know. Thanks for sharing your update.
I had less than 20 miles on my new Aventon Pace e-bike when the battery quit charging. The store where I bought it said I had to get the manufacturer to replace the battery and that they would help. That was 2 months ago and I am still waiting for Aventon to ship the new battery to the store. Why doesn't Aventon send out extra batteries to stores in preparation for an event like this? And if they are unwilling to do that, why does it take this long to process a legitimately documented defective warranty? And, by the way, it took the direct customer service department 1 month to even respond to my email! Don't buy this brand if you expect any kind of customer service, standing behind their product, etc.
Believe me, I feel your pain.
Trying to find battery on Ancheer Electric bike
I take it you're looking for a replacement battery. Correct? I looked on the Ancheer site and could not find one. You'll need to contact them directly. If they don't sell them, they be able to tell where to get one.
I'll be selling my Aventon Aventure ebike unfortunately due to a couple of issues that have NOT been addressed by CS or I'm being totally ignored by them which doesn't suprise me these days. First issue I'm having is the peak power or so called power on demand these ebikes have which is up to 1130w Peak isn't working properly on my bike. When going up seemingly small inclines the motor will start bogging out or lagging. Like its trying to peak but refuse to do so which in turn leaves me peddling even harder to keep the bike at a safe stable speed while climbing the small or medium inclines. Seems to only do this while peddling and if I just use throttle to go up incline the motor seems stable. Its definitely strange and I'm not the only one having this problem with this issue from my understanding.
My second issue is that they seem to not want or even advertise battery for the Aventure! I'd like to have an extra battery but seems I can't even buy one from them. I'd also like to buy a controller as well since I'm pretty sure that's what is causing my power lagging while going up small inclines. CS is horrendous at this company! I was considering calling the BBB myself but didn't want to go that route but after reading this I may just go ahead and do this before my warranty runs out in May 2022.
I'm sorry you're having all these issues. I would definitely go to Better Business Bureau route. And I would also post a brief video on RUclips about the problems you're having and share the link on the BBB website. This is how I finally got some results.
I just bought 2 new Aventures and 2 spare batteries (currently $200 discount on Aventure batteries with bike purchase ). One bike had shipping damage. Customer service has been EXCELLENT so far. I talked to an English speaking human who answered the phone immediately and sent me a new front/rear set of fenders (I only needed the rear) and a complete rear luggage rack. I’m not thrilled about the shipping damage but everything else has exceeded my expectations.
are able to read the numbers on a cell and if so can you post that number thanks
Kevin, The cells have no markings that I can discern. But I'd have to disassemble it further to know for sure.
@@webopus thanks heard they are 21700 cells not 18650 cells just wondering
@@kevinbetts7544 Pretty sure they are Samsung 18650's likely 35e like other aventon batteries.
I can't be the first person to ask; can you make a video with this battery that changes out the proprietary three prong charger socket for one that is readily available like the barrel plug they use on every other bike?
I am missing my charger since UPS lost it in shipping, and you can't get a charger from aventon in any reasonable amount of time.
As a matter of fact, you ARE the first to ask, and unfortunately this is beyond the scope of my knowledge. I would look online for some kind of adapter. That's probably your best route.
Yes, the supply chain shortage has really hit bike manufacturers hard, but Aventon seems to be a bit more behind the eight ball than others. I also have a Sondors Rockstar and they have been Johnny-on-the-spot with needed parts. Two thumbs up for Sondors.
If you look @4:04 you'll see the pad marked C- that is the negative charge port, that and the P+ are where you connect a charger.
@@ghz24 Great information. Thanks very much.
@@ghz24 ok, then that begs my next question, why three pins on the charge plug? I would have assumed that was charge+ charge- and a handshake to the battery?
@@webopus I'm beginning to think whoever comes up with a solution that lets you use a standard barrel plug to charge this bike will make a fortune. Every place I look I see owners of the aventure wondering why they used that three prong
Well done. A friend of mine knows a fella in AZ who makes custom batteries for this exact sort of occasion. I’ll try to find out his email and drop it in here.
All that needs to happen is that controller to be replaced.
Cool. I hate to waste and I'd sure like to have a spare battery. Thanks
I should also mention that Aventon sent me a new battery AND a new bike. Once the right people got involved thye really stepped up to the plate. Thumbs up!
@@webopus turns out it was a one time thing. Sorry. Don’t throw that battery out. There are a lot of expensive cells inside of it. Quite a few folks would like to have it.
@@rabbi6225 Thanks. No problem. I'll hang onto them for a while. There's Gotta be a way to use them for something. It's all about finding a battery management chip. I have enough extra parts for these bikes to build a whole new one. :-)
@@webopus perhaps an rc vehicle of some kind? Mini Boat or off road capable mini truck!?!?? 🤔
Replace the parts... looks like a capacitor is the large one, not sure the small one.
Hi, Thanks for the input. Easier said than done. Now that stores like Radio Shack and Fry's Electronics are out of business, where does one go for parts and part identification? I'm all ears. I'd love to salvage this battery.
Personally I’d remove all the BMS and just get a New BMS used as an auxiliary battery for extra distance. Thank you so very very much for taking the time to post this video
@@ChefDomenic Hi Domenic, Thanks for the suggestion, but finding a new BMS chip for this particular bike is not a simple procedure. I haven't seen any others like it. And because the components fit so precisely into the enclosure, it would have to be an exact match. I'll just have to recycle it and hope that the new one last a good long time. Take care.
It looks like a 'thick film' 0805 resistor to me. The white ceramic substrate is all that is left. The resistance part used to be the screened-on film that was on top of it. You have to seriously go beyond its rating to burn it up like that. The yellow tantalum capacitor is actually more likely to fail (shorted) than the resistor. The resistor may have been in series with it. If you can prove to yourself that the resistor is in series with the capacitor, and the capacitor measures a short circuit, you can likely replace both and bring the battery back to life (assuming you can get it put back together). If that was a series resistor, its value would have been around 5-10 ohms.
Bad tantalum cap. Not that hard to replace
Hi and thanks for the information. I see that a tantalum cap is a type of capacitor that's readily available. The battery pack is long gone or I would have tried to replace it - even though my soldering skills are not great. Take care.
Every one of those cells is worth $6 new
Eric, Well I still have the damn thing because nobody I've contacted will recycle it. I've offered it to anybody in the Phoenix area, but had no takers. Shipping these things is a hassle.