Nuanced question about Hailong packs

[Chalo]

So this is a nitty gritty question related to Hailong "Shark" packs and their mounting rails.

I have a friend for whom I built a couple of e-bikes using Hailong packs. The first came from Luna, the second (a while later) I had to scour Amazon et al for, so I could find a battery case and rail that were compatible with the first one. Well now it's years later, she wants a new pack, wants inter compatibility with her old packs and rails, and I can't find one so far. Here's a picture of what she has now (two of these):





It seems there have been multiple revisions of the mounting rails and lugs (and conductor tabs) since this one was current. I have no idea at all of the nomenclature for the different versions, but really I would just like to get one of the above and be done.

If I can't get another one of the packs that interfaces with the rail pictured above, she won't have interchangeability between her bikes and packs.

Does anybody have useful information that might help me get her the right pack for the job?

 

[hillslayer@]

My solution would be don't use the connection pins remove them and wire xt 60 connectors which will be way more reliable than those connection pins

 

[E-HP]

Does anybody have useful information that might help me get her the right pack for the job?

Is it the Hailong 1, 4 pin base?

https://www.aliexpress.us/item/3256804401069776.html

 

[lnanek]

Could always just buy three of the rails/connectors and retrofit all the old packs and bikes at the same time.

I use silverfish battery cases and fortunately my supplier usually includes several different bottom plates I can slap on, so hasn't been an issue.

 

[qwerkus]

So this is a nitty gritty question related to Hailong "Shark" packs and their mounting rails.

I have a friend for whom I built a couple of e-bikes using Hailong packs. The first came from Luna, the second (a while later) I had to scour Amazon et al for, so I could find a battery case and rail that were compatible with the first one. Well now it's years later, she wants a new pack, wants inter compatibility with her old packs and rails, and I can't find one so far. Here's a picture of what she has now (two of these):

(..)

It seems there have been multiple revisions of the mounting rails and lugs (and conductor tabs) since this one was current. I have no idea at all of the nomenclature for the different versions, but really I would just like to get one of the above and be done.

If I can't get another one of the packs that interfaces with the rail pictured above, she won't have interchangeability between her bikes and packs.

Does anybody have useful information that might help me get her the right pack for the job?

That's exactly the main problem with those packs. Not only are there many many different version of packs with similar shape from known vendors like reention or hailong, but there are also plenty of knock-offs and copies.

Only way I know is to ask vendors for drawings before shipment, and measure/compare with your existing bike.

 

[99t4]

Has the old pack simply degraded over use and time? Maybe it can be rebuilt with new cells? Then it would retain fitment.