list of Retail Batteries - with quick lock/unlock from bike

The Stig

100 kW
Joined
Nov 15, 2008
Messages
1,032
Location
Boston
This is a thread for posting and discussing production/retail batteries that can be mounted on bikes and have a locking feature.

Quick lock/unlock also implies that the battery comes with some kind of contacts that automatically engage. eg: sliding contacts.

dInrhEq.jpg

The names of the battery cases in this pic: Rear rack (left). Silver Fish (right). Frog (below)

A lot of bikes use these batteries and when someone like me is looking for a replacement, this should be the thread to check out. The Frog (AKA "little frog") battery case is a good example so lets start with that one. I search for these batteries with these search terms "frog battery 36v" or 24v, whatever voltage your looking for.

Please post the link to where you can buy them and include pics.
 
Dolphin case
Always a good place to start is em3ev.com
http://em3ev.com/store/index.php?route=product/product&path=35_53&product_id=161
frame%20pack-7-500x500.jpg




Frog Case
Bikes that use this battery: XB 310Li
(post about more relevant bikes and I will add to this list)

Frog packs look like this
1277361324098_hz-fileserver2_3689210.jpg

LIFEPO4_36V_6AH_Ebike_Battery_Pack_-_Frog_Style.jpg




So I'm thinking of buying this one, it seemed the best price out of the listings that include brand-name cells, like Samsung INR18650-29E. I find it hard to beleive its actually made in germany, but its coming from germany. anyone know the supposed seller "EnerPower" http://enerdan.de/ ebay ID:harvestmoonglory ?

Here is their listing for 36v frog batteries w/ samsung cells
http://www.ebay.com/itm/251985602818?hash=item3aab832902&boolp=1&quantity=1
(BTW they will accept a lower offer, I tried 235 GBP, but if anyone tries they should go lower!)

UPDATE: After recieving the battery, opening it up and emailing them, turns out these are still potentially quality cells: Sanyo/Panasonic NCR18650BL. I found the tiny markings on the cells Similar to the pics here (includes specs): http://www.candlepowerforums.com/vb/showthread.php?400639-Test-Review-of-Sanyo-Panasonic-NCR18650BL-3350mAh-%28Red%29

PS: the mounting bracket is the newer reinforced type.
 
It wouldn't surprise me if they're slling Chinese stuff. The case will almost certainly have come from China. They might have made their own cell-pack to go in it. The cells come fom wherever Samsung make them and the BMS could be Chinese or self-made. At least you should get some sort of backup if you need it.
 
No, in case that's not a joke, I mean that you have someone who you can call, and who should take your complaint seriously.

While I think about it,let me tell you about the mounting bracket that attaches to the bike. They crack due to the cantilever force tearing the bracket at a weak point. Some of the better suppliers have added a reinforcement plate to it to stop it from cracking, but others haven't. You won't know which one you get until it's too late unless the supplier knows about it, which he/she probably doesn't. Here's a vracked one:

 
In this case im buying from ebay so i have 60 days to leave feedback. Everytime i threaten leaving bad feedback people seem to start cooperating.

Thats true about the brackets, right now i have one of the old ones on the bike. i had it welded across the upper gap, so its tough as nails now. Ive seen the newer reinforced ones... so not all new ones are like that? When was the one pictured bought. Id be surprised not all the new ones are reinforced...
 
The new battery arrived today from here! the good news is my mounting bracket seems to be reinforced.

The bad news is, I cant tell if the cells are real samsung INR 18650-29E, I find it suspicious that the markings would all be facing away from me, all the other sides of the pack are more difficult to open. is it possible to tell if the cells are real by looking at pics 3 and 4? Heres the sequence of pics of how i got to the cells.

EDIT: Turns out these are still potentially quality cells: Sanyo/Panasonic NCR18650BL. I found the tiny marking on the cells after I had posted this.
Specs: http://www.candlepowerforums.com/vb/showthread.php?400639-Test-Review-of-Sanyo-Panasonic-NCR18650BL-3350mAh-%28Red%29

1.
IMG_20151027_224840.jpg

2.
IMG_20151027_224810.jpg

3.
IMG_20151027_225554.jpg

4.
IMG_20151027_225648.jpg
 
It certainly seems my red cells are not real samsungs, judging by the color cells and potential lack of markings. I'm happy to go through the trouble of nailing bad sellers on ebay since i think ebay would ultimately protect me. I just have to think about how best to approach the seller.

DSC_5013.jpg
 
Turns out they miss-labled the battery and gave me one with sanyo NCR18650BL cells, which are maybe lower cycle life, higher capacity and higher C-rate, Specs in the link below. So I will keep the battery instead of returning it.

My cells do indeed have small labels on them. "D"s and a QR code is visible. similar to in the pictures here:
http://www.candlepowerforums.com/vb/showthread.php?400639-Test-Review-of-Sanyo-Panasonic-NCR18650BL-3350mAh-%28Red%29
 
Heres a good trick for tightening these nuts & screws without taking the mounting bracket off the seatpost!

just stick a small screwdriver in as shown in the pic below, this works with philips screw heads. press inwards, along the axis of the scredriver.

e9728oJl.jpg


The battery seems to be doing well, just some screws in the mounting bracket came loose. I may not have tightened them enough when i first installed the battery. i HAD fully engaged the nylon in the nylock nut. I think these loose screws contributed to the mount bending a little bit, i dont think the bend will be too bad going forward.

Now i put thread locker everywhere, as should be done with low quality (ehem, chinese) parts. and almost all bike parts?
 
Back
Top