Luna Wolf Pack battery documentation

[Grover]

Thanks for the input paxtana - we'll check that

[paxtana]

Well for starters I would check what 73eldo was saying. Visually inspect the connector, look for any signs of a melted resistor on the xt90-s, and if it is a newer model with backup xt connectors, firmly plug into the backup.

It sounds like enough power is getting through to turn it on but not operate it. That's more like a high resistance connection. Which could be something as simple as not being fully plugged in or the resistor partially burnt up from not being fully plugged in, as discussed here https://youtu.be/7PwdlPOl1zg

If there was a problem with the bms, you should use a multimeter, take a voltage reading on both the discharge connector and the charge connector and compare these two numbers. If they are significantly different then yeah probably something bms related. Could be wrong I suppose, but these are just basic stuff to check.

[Grover]

what else are you thinking it could be? we tested the bike with an identical battery and it was fine..

[paxtana]

I would not do that. Plus it doesn't sound like the bms anyway.

[Grover]

Thanks, we gingerly went to town on the case with a Dremel.. Well, actually not we.. My friend did.. We left the immediate area.

[73Eldo]

An advantage to the wolf packs is the hard potting material but that can be a disadvantage when it comes to any sort of repair.

Is this a V1 (with leads) or the V2 (with the recessed connectors)? I would be looking around the connectors for damage that is causing a bad connection. Even there it could be difficult to try and repair. BMS is in the bump in the top. The potting seems to stick real good to the case so I don't think there is any peeling it off.

[Grover]

Posting for a friend, After a crash, the wolfpack cuts out instantly under load. We tested the bike with another battery.. all good, so the issue is def somewhere in the wolfpack battery unit. Now, can anyone suggest how we open the wolfpack? (obviously we know the case will be damaged by opening) We want to gain access to the bms so we can check / test it.

[j.b.shirk@gmail.com]

Indeed, I checked again today and it was at 46V so it must have been a thermal trip. Changed to 54 V now. Thanks.

[paxtana]

Sorry if I came off that way. This is the official documentation thread for this product and I can't have incorrect info regarding voltage or price on it, nor comments like how you want to buy something else. Like I said I would contact support. The battery is not actually at zero, the BMS is tripped. Support can help find out why, maybe even fix it, and if not propose a reasonable resolution.

[j.b.shirk@gmail.com]

Whoa bro, why so rude? Technically that's correct. When I bought the Luna folding a bike the upgrade option to this battery was an extra $300. my bill doesn't list what the total cost of that battery was so thanks for that.

also since I have poor eyesight I double checked what I typed and you're right it's closer to 56 V at 100%. I'm used to seeing 54 V because I almost always charge to 90%.

Not sure what the logic in only helping people who already know everything is. I came here for advice.

[paxtana]

The V2 30Q Wolf has never costed $300, and 100% is not 54V. Given that you don't seem like you know what you are talking about you might want to email support, maybe there is something that can be done to help you.

[j.b.shirk@gmail.com]

52-WOLF-30Q-12-BLK - I bought this almost exactly 4 months ago for $300 and it went kaput today . I see that the exact same battery is no longer available on the luna cycle and I'm not sure I want to buy another battery that goes to 0 V after only 240 cycles.

I rarely charged it to the unrecommended 100 percent which is about 54 volts, but I did twice this week, and lo and behold ...

comparable 52 volt 12 amp hour batteries on luna cycle are way more expensive today. Seeking advice on a good replacement.

[paxtana]

The charge port is a different circuit from discharge. There are backups for both charge and discharge for the sake of durability. If you want to use a secondary port for discharge, do it from the second XT90.

[geekazoid]

Hi, I was wondering if you could advise on the BMS on these packs. I've built out a Cargo bike with two of the Wolf V2 13.5Ah MJ1 naked packs. The discharge profile on this is awesome, only 15A per side. I have yet to put any kind of isolation between the packs and have been testing them by charging them individually then discharging them together. I would like to move to parallel charging and I've been looking at threads like this one.

I'm wondering how disconnected the charge ports are from the load side and what is the purpose of the dual XT60 - just a spare charge port or is it a secondary port for discharging (e.g. accessories).

[paxtana]

Voltage is not really that relevant to the range.

We sell $35 watt meters if you want to test what sort of capacity you are getting from your existing battery. I can tell you our batteries use good cells and the capacity does match what is advertised, so if that's what you end up needing then yeah it'll work for you