Battery Charger/Battery issue

[Jrp21577]

Hi guys,
I just did my first ride on my BBSHD with the 48v 17.5ah Jumbo Shark, It was 60 miles. i did the rookie mistake of letting the battery get below 5% and this would have been my 3rd charge out of 6 balancing charges.
The 48v mini charger stopped charging and started the known clicking/cycling on and off. I attempted a Jump to reset the BMS various times with no help. The charger output reads: 54.8, the battery discharge side reads: 43.9. the 3 pinned battery side charging port reads: 43.9.
Continuity on wiring is good. I am at a dead end. The instructions on flipping your battery upside down and having positive on left and negative on right does not hold true on my battery, as you will see in the pics posted. I opened a trouble ticket as well.
I would appreciate any help while i wait for a Luna response..
Regards,
Jaime

[kfredsted]

Hey Jaime

if you have time let me know what the response from Luna is I have the same issue with my battery
Thanks
Kenneth

[Jrp21577]

Sorry Kfredsted... I have been gone a while. I ended up with the advanced charger and it works great. I still have the mini charger as a backup.

[Robert Ver Heul]

I am having the same problem tried to jump start but will not charge . I'm waiting on luna for more help. please post if you find the answer.

[Jrp21577]

.sorry< I have been gone a while. I ended up with the advanced charger and it works great. I still have the mini charger as a backup.

[OR Kid]

Same problem. My 52v11.5Ah Triangle Reads 54 through charge port 30 through discharge. I attempted a Jump to reset the BMS various times with different chargers. Luna mini will come on for a few minutes on discharge side and not at all through charge side.

[Jrp21577]

.sorry, I was gone a while. I ended up with the advanced charger and it works great. I still have the mini charger as a backup.

[OR Kid]

I was able to "reset" the BMS after several tries. However after a ride or two battery now reads the same voltage through charge/discharge ports but won't charge through the charge port. It will charge through the discharge port and runs normally. This doesn't reset the BMS anymore. I'm only "reverse" charging for a few seconds to a minute at most. I'm at a loss at this point. This is my second dead Luna Triangle. Is it possible to get a replacement BMS? Or two? Other suggestion. Not sure if this is the right place to get help with this issue.


Oh and the battery in my previous post is actually 12.5Ah not 11.5

[jigs]

Same B.S. here. I got the bike 3 days ago and it's dead. I was recommended to get the mini charger too. I rode like 13 miles on a full charge and it just died. Been plugged in for 24 hours now (as instructed by luna) and it's still just clicking on and off. This can't be good for anything. At this point I just want my money back

[jigs]

$3000 for 38 miles. Great product.

[jigs]

So how do you "jump" this POS? I really wish I went with a company that at least backs their products and not claims to be a DIY company while making massive profits off of us. Why aren't they replacing these mini chargers? Where is the thread I can read about the clicking charger? Oh and they sent me the wrong display too and completely blamed me. Like when I'm spending $3000 I don't double triple and quadruple check my order.I really hope they replace this battery. "Oh it's not charging? Just leave it plugged in and clicking away and hope tomorrow it's working". Tomorrow has come and gone. As have my patients.

[paxtana]

We have a fix adapter for the mini chargers, should be arriving at our warehouse in the next few days. It stops the clicking and makes the charger work normal.
If any of you need it, email support your order# and we'll send it out.

Very likely the charger is still charging, just slowly when it clicks and only does this when pack is at a low charge percentage. You can test that it is charging slowly by comparing multimeter reading on the pack before and after overnight charging.

Depending on the size of the pack you can leave it overnight and it will pass the threshold where it will start charging normally. However if it is a large battery this will take longer than just overnight charging due to the capacity. In any case we'll send the fix if any of you need it and leaving it plugged in would only be a temporary measure.

[jigs]

I'm at 49v of a 52v battery. That wouldn't be enough to trigger normal charging?. Now this thing has been clicking on and off for days. That can't be good for the charger or battery. Both should be replaced. There's no way to reset whatever is causing this clicking?

[ykick]

52V battery packs charge to above 58V. Clicking issue normally abates somewhere above 50-51V. If you wait a little while longer it will eventually kick-in and charge normally to above 58V. I wouldn't run it below 50V resting again until you either have the adapter fix, another charger or days to wait until it gets somewhere above 50V.

[jigs]

And can you send it faster than ground? Whenever you do receive these things (which is still a mystery to your customers that were advised to buy this charger) It's going to take a week to get to me. Depending on when this mystery adapter arrives at your warehouse, I'll be down for over 2 weeks already.

[paxtana]

No, 49v of a 52v nominal pack is not enough to pass the threshold for normal charging. A 52v nominal pack goes up to 58.8, as such the voltage in the pack right now is less than halfway.
Yes it will reset once it passes the threshold or the adapter we are sending you is plugged in.
No it's not bad for the battery, trickle charging is not bad for a battery at all, quite the opposite actually.
Yes we will send priority.
As I stated if you are in a hurry we can exchange it, since we already have the other chargers on hand.

[jigs]

And no one thinks that this charger clicking on and off every second for a week is doing damage to it? This is years of use in days.

Your company was a DIY parts supplier, but as said on the website you are now carrying fully completed bikes. If I wasn't on my phone I would post the screenshots i have. So being that it's not a DYI project, support needs to be offered.

[paxtana]

Support was offered, I already offered to you to exchange it or we can send the adapter soon. We are not ignoring the issue or anything like that, we are acting to remedy it as quickly as we can.

No, it's not doing damage. Please see the below video on how a charger works. It is supposed to have a trickle charge function at the end of the charge cycle to top off the pack, but for whatever reason that batch of chargers thinks it needs to do this at a lower voltage than it would otherwise. We were not aware of the issue until recently and which was introduced through no fault of our own by the factory contracted to do the manufacturing, and it's been even less time since we determined the cause and got a sample adapter that shows the issue resolved in testing.

But like I have said repeatedly, if you would prefer a different charger we can do that. Since you bought a bike I could probably even swing getting you an upgraded advanced charger but we would not be able to ship this as quickly as the standard since the advanced charger is backordered for the next few days.

[Peter Halt]

I don't know how you have the patience to deal with folks who don't believe Luna sells a DIY product finished bike or not. While lovingly hand built and customized with bitchin innovative carbon and aluminum bling, it's still a Chinese product with Chinese components and accessories, and this is always going to require a bit of fiddling and have some QC issues. Don't you sometimes just want to tell them to go buy an overpriced warrantied Bosch product and leave the fast bikes to those that know how to roll with a punch?

[commuter ebikes]

I used to get frustrated beyond belief with my DIY ebikes until I realized that most of what I learn arises from problemsolving events. I honestly enjoy when something goes wrong now because I realize that I will be learning something new.

[Matman]

I had the same issue with the 48V mini charger. I plugged my 52V full size advanced charger into my dead 48V battery. The battery and charger seemed happy and charging progressed. After 30 minutes (at 46V) I swapped back to the 48V mini to completed the charge. The mini is nice and compact, but it cannot cope with low battery voltage. Get the full size advance charger is my advice.

[jigs]

Support was offered, I already offered to you to exchange it or we can send the adapter soon. We are not ignoring the issue or anything like that, we are acting to remedy it as quickly as we can.

No, it's not doing damage. Please see the below video on how a charger works. It is supposed to have a trickle charge function at the end of the charge cycle to top off the pack, but for whatever reason that batch of chargers thinks it needs to do this at a lower voltage than it would otherwise. We were not aware of the issue until recently and which was introduced through no fault of our own by the factory contracted to do the manufacturing, and it's been even less time since we determined the cause and got a sample adapter that shows the issue resolved in testing.

But like I have said repeatedly, if you would prefer a different charger we can do that. Since you bought a bike I could probably even swing getting you an upgraded advanced charger but we would not be able to ship this as quickly as the standard since the advanced charger is backordered for the next few days.

First off I'll apologize because somehow I missed your post about replacing it. I wasn't talking about damage to the battery. I've been using RC cars for over 35 years. I know a trickle charge won't damage the battery, if anything it's better. I was referring to the charger. Its literally turnimg on and off 86400 times a day, it's been running for 4 days. That charger has turned on and off approximately 350,000 times. That I would like replaced with the adaptor. I'm not asking for an upgrade. I just want what I paid for. Second I'll apologize for posting like an ass but you have to understand that I use (Or wanted to) this bike for a commuter. It's only about 10 miles a day. I admit to not fully understanding Lipo batteries and will be reading quite a bit about them after this incident. I just opened a CNC machine shop and as expected there were problems and I ended up going waaaay over budget, hence buying this bike and selling my vehicle. If I made parts wrong for a customer who I charged and just said sorry, that's how it goes I wouldn't have any customers.