Ask an ebike technical question get an answer within 30 minutes or so.

[galvera]

Hi i am interested in purchasing a Bafang BBSHD hot rod kit. I am in Italy.
BB size 68mm.
Regarding the battery I am finding the cut-out for the V2 Wolf Pack just about fits the downtube but with little/no room to spare.
How much room should I allow for the cradle and space for attaching/removing the battery?
The bike is a Cannondale Rush (frame size Large), any experience with this frame (specs attached)? thanks

[paxtana]

Not a lot of clearance is needed compared to typical hardcase batteries since it is removed by tilting the battery to the side rather than sliding it up. That said, I would probably take the printout and ensure it matches the measurements on the documentation for this battery, as sometimes when you print a pdf it can print with a different paper size selected and make it seem bigger or smaller than it actually is. Given how far it would be shipped you will want to be sure that your mockup is correct. The mockup accounts for the added height of the mount.

[galvera]

Understood, thanks will triple check measurements!

[Pizzabroodje]

Do I need a narrow or wide chain for the BBSHD with stock chainring?

[paxtana]

The stock ring will work with just about any chain. Not well mind you, as it is not a narrow/wide chainring, i.e. every tooth is exactly the same rather than alternating between narrow and wide teeth as you can see on something like the eclipse ring. See below for how the teeth width changes on aftermarket rings

Generally speaking, for any install you want the widest chain possible. Not because smaller won't fit stock (though you can't go thinner than 10spd on aftermarket rings you can go thinner with stock), but because the thinner the chain the more fragile it is, which means it will stretch and wear out faster.

[bikeangeles]

After a 100 miles of riding, my 13.5ah battery charges to 56.6 on the charger, while the display on the bike reads 56.1. Is this normal or a sign of misuse?

[paxtana]

Bike displays are not usually the most accurate with voltage readings. Do you have a multimeter? That's what I would use. If it's a luna charger (one of the blue ones) you can adjust the cc/cv so it tops our more around 58.8 if you like (disregard if you are saying you have it on something like a 90% charge setting)

https://electricbike.com/forum/forum/knowledge-base/chargers/38871-how-to-adjust-the-luna-charger-mini-and-advanced

[jamesvincent]

Are there any chain guards available for four season ludicrous ebike? I’m tearing up all my pants!

[HIGHVOLTAGE]

You'd have to custom make one. Personally I just wear skinny/slim jeans or shorts.

[Lakejumper]

I wear a leg strap that you wrap around your pants.

[phonex98]

Hi all,

One quick question after having a hell of a time soldering the XT-90 pots... Does the Luna Direwolf have any wire shorting protection over the XT-90?

Thanks.

[paxtana]

Yes, the BMS will go into protective shutdown. Typically you would reset it by plugging into the charger.

[phonex98]

Amazing, happy to know I won't go up in flames!

[baldwin]

Looking to purchase BBSHD 1000w controller. Website says to choose version a or b, yet the website does not have this as an option to select or toggle. How can I get one on order?

[paxtana]

It sold out and option is autohidden until restock. Might be a month.

[a00000168]

Hi,
What are the costs associated with maintaining and owning an e-bike, and how often should I expect breakdowns? In that case, what parts would need replacement the most? Additionally, is there any preventative maintenance that can be done to minimize the risk of breakdowns, and how effective would it be?

[paxtana]

Kind of a broad question.. Depends on the type of ebike, the type of motor, how it is being ridden, maintained, and stored. I would not expect a lot of breakdowns if you are treating the bike with recommended guidelines on stuff like maintenance and preventative stuff, but sometimes shit happens. Two most common parts I see break are the controller and the charger, and it would be good to have backups of both on hand if possible. Dielectric grease on contacts can be good for prevention if using around water https://electricbike.com/forum/forum...bshd-and-bbs02

[phonex98]

Another Q.
I am trying to make a satiator profile for the 52V Luna Dire Wolf, and the profile maker asks for lead and tab resistance. I see the Resistance of the MJ-1 is listed as <= 40 mOhm using 1000Hz test, but was wondering if Luna had a more accurate number (ie including Tabs and wiring). Thanks.

[paxtana]

Sorry we do not have that info.

[Aesopslyre]

Hi, I WOULD LIKE TO ORDER Luna Charger 52V Advanced 300W Ebike Charger.. to charge JUICED Hyperfat 1100. However, I don’t seee an XLR type connector adapter to order as well , since battery pack for Hyper.fat uses XLR female input.

[HIGHVOLTAGE]

You'll have to source XLR connectors by themselves and then modify the chargers connectors with it.

[windaveski]

I have a BBSHD, Luna wolf V2 and luna advanced 300W charger, all brand new.. My battery charged up OK the first time. After my first ride the battery was at ~60%. When I plugged in the charger to the wall it showed displays of 58.7V and 0.00A. When I plugged it into the battery nothing happened. No fan, no change in displays. I had the charger set for 2A and 100%. I tried several times to start over with no luck. Then I measured the output from the charger with a multimeter. Confirmed it to be 58.7V. Then I measured the battery voltage at the charging connector at ~51V. It acted like the charger was not seeing enough of a load from the battery to start it.
After several more tries of resetting switches and plugging/unplugging, the charger started, clicked on and off a couple of times within a few seconds and then went off again. I got this to happen several times and then it finally started up and stayed running until the battery was fully charged.

I just tried to charge the battery again after my second ride and with the battery at ~50%. Same problem. Got the on/off thing one time. Other than that nothing.

I did some additional testing this morning. I set up a test of the charger as your blog showed with a light bulb. The charger started up properly and lighted the bulb. Next I soldered wires to the extra connector that came with the charger. This allowed me to monitor the voltage at the battery input while the charger was plugged in. The battery voltage at the charging port was 48V without the charger connected. Then I connected the charger and the voltage went up to 58.7V but still no fan, no current on the charger display and the charger LED stays green.

I am going to be out of town starting tonight for about a week. If I need to return something I want to get that started before I leave so please respond ASAP.
Thanks, Dave Strohm

[intramorph]

Please contact email support for this. This cannot be solved here.
Also provide the order# in the email.

[CPG]

Any chance of getting a Luna Wolf battery, WITHOUT the outer shell and the mount system? My use on my Montague folder would not need either. I really like the fully potted feature, and as this is for my airplane, weight is a big deal, and like my current 11.5 AH Panasonic pack, I have a custom made bag that comes off and on when folding the bike.

[paxtana]

Those are integral to the battery. Can't pot it without something to pour the potting into. Spose you could grind the rails off the bottom to lose a few grams, if you wanted.

[MoneyPit]

I am in the process of electrifying a Mongoose cargo bike and I want to put a BBSHD on it. I have two Luna HDs on other bikes and I'm aware of the throttle/PAS override issue that was such a big source of complaint a while back. Was due to a firmware change at Bafang. Is that still an issue? I have heard on FEB that Luna has it identified and eliminated. I've also heard you need to ask for the patch at checkout time. Both of these things are internet posts so I thought I would come here and ask before making the buy. Whats the scoop?

[paxtana]

That got fixed. You do not need to ask for it to be applied, all of the motors sold by Luna come with it now

[MoneyPit]

Beautiful. Thanks. On my way to the shopping cart now.

[Andrews]

My Luna shark battery won't seem to charge. When I plug in the charger the charger makes a clicking noise and the red and green lights start to slowly flicker with the clicking sound. It's similar to the video linked here.

https://youtu.be/i2jJAP5-kuI

[paxtana]

That's slow charging until it reaches >50v. An adapter should have been included that prevents that. Email us if you need another.

[phonex98]

Hi Luna,

I am building epoxy rails to prevent an ottolock from sliding off the Luna direwolf. Can you please tell me which type of plastic (ie. HDPE, PE, MDPE) the casing of the direwolf is? This will allow me to use an epoxy with the strongest bond. thank you

[pure_mahem]

Not an answer to your question. But another option. You can use a hose clamp through the securitabs in the rails under the battery and it will secure it to the frame. I used 2 1/2" stainless Steel hose clamps fitted them and then covered the exposed strapping of the clamp with some heat shrink. It looks pretty good. Granted removing a battery is a whole lot more difficult but those otto locks aren't exactly the securist things in the world. Just something to think about. I rarely every remove the battery from my bike anyways. your mileage may very of course

[phonex98]

thank you pure_mayhem, that might be a nice addition to the ottolock method. The more hurdles to theft the less likely...