Ninebot battery for my Ebike?

jerbyrd88

100 µW
Joined
Feb 15, 2020
Messages
9
Hey I just bought a front wheel hub motor kit and I got a good deal on a Segway ninebot battery. I was wondering if anyone knows or can suggest the best way for me to run the battery to my controller so I t can power my bike? Any advice would be greatly appreciated. Thanks
 
You should re-assemble the cells in a convenient format to fit on the bike, maybe add some of the same cells to make a bigger pack because a 9bot doesn’t hold much capacity. Ideally buy a BMS and/or a case to fit them in. The rest is straightforward: plug the battery + and - to a controller of matching voltage.
 
Ok cool thanks it's already got a BMS and I ts already in a nice tight little package along with a nice lil mounting bracket I finally got it cracked open ( that was kind of a pain in the ass) so I'm gonna hook up an inline fuse on the positive battery cable coming off the battery itself and solder/splice/ heat shrink the negative cable and I should be alright then? Thanks MadRhino appreciate it.
 
It's actually the ninebot external battery pack the add-on one . Kinda looks like a bottle battery
 
Just to be clear, you have a Segway ES4 scooter external battery, correct? Segway and ninebot are the brand, they make a lot of different products.

I'm not too familiar with the ninebot ES4 external battery, but I have played with a couple of ES2/ES4 internal batteries. I tried to run a 36v hub with a generic motor controller with one of the ES2 batteries, and the BMS would cut out on a any significant voltage drain. I think if the BMS doesn't see a signal from the stock segway controller, it will kill power. I ended up re wiring the discharge leads to come straight off the 18650 cells. Charging is still via the BMS.

Not sure if it's applicable to your situation, but just thought I'd put it out there.

Also if you're using the battery in a bike, you may be disappointed, since it's only a 36V 5AH pack. I put two in parallel in a scooter to get any decent range.
 
ApacheXMD said:
I'm not too familiar with the ninebot ES4 external battery, but I have played with a couple of ES2/ES4 internal batteries. I tried to run a 36v hub with a generic motor controller with one of the ES2 batteries, and the BMS would cut out on a any significant voltage drain. I think if the BMS doesn't see a signal from the stock segway controller, it will kill power. I ended up re wiring the discharge leads to come straight off the 18650 cells. Charging is still via the BMS.

They're all gone, but I got four of these "segways" for $25 each last year.
https://batteryhookup.com/products/36v-pack-with-bms-20x-2550mah-eve-icr18650-26v-cells-5-1ah-183-6wh-scooter-ebike?variant=31272284553348

Like you, I found one pack could not push 10A without shutting off. Also, my generic chargers would pulse on/off and that would probably damage them. I repackaged them as two 10S-4P packs with a 20A balance BMS on both. The ICR cells are rated for 7.5A, so each pack has 30A max available. My bikes rarely take more than 500W anyway. That's like 13A continuous.

I think these packs are mechanically quite stout, and with a good BMS, I don't worry as much about them blowing up on me. They still could. It's lithium.
 
docw009 said:
ApacheXMD said:
I'm not too familiar with the ninebot ES4 external battery, but I have played with a couple of ES2/ES4 internal batteries. I tried to run a 36v hub with a generic motor controller with one of the ES2 batteries, and the BMS would cut out on a any significant voltage drain. I think if the BMS doesn't see a signal from the stock segway controller, it will kill power. I ended up re wiring the discharge leads to come straight off the 18650 cells. Charging is still via the BMS.

They're all gone, but I got four of these "segways" for $25 each last year.
https://batteryhookup.com/products/36v-pack-with-bms-20x-2550mah-eve-icr18650-26v-cells-5-1ah-183-6wh-scooter-ebike?variant=31272284553348

Like you, I found one pack could not push 10A without shutting off. Also, my generic chargers would pulse on/off and that would probably damage them. I repackaged them as two 10S-4P packs with a 20A balance BMS on both. The ICR cells are rated for 7.5A, so each pack has 30A max available. My bikes rarely take more than 500W anyway. That's like 13A continuous.

I think these packs are mechanically quite stout, and with a good BMS, I don't worry as much about them blowing up on me. They still could. It's lithium.
Are these the same internal pack you guy talk about?
https://www.batteryclearinghouse.com/products/eve-2550mah-7-65a-lithium-ion-cells-in-a-rubber-pack

When you are pack them to 10s4p do you take them out of the plastic housing?
Thanks
 
Skippo said:
Are these the same internal pack you guy talk about?
https://www.batteryclearinghouse.com/products/eve-2550mah-7-65a-lithium-ion-cells-in-a-rubber-pack

When you are pack them to 10s4p do you take them out of the plastic housing?
Thanks
if they are then reference:
https://secondlifestorage.com/index.php?threads/eve-icr18650-26v-cell-specifications.8390
https://www.eveargentina.com.ar/gallery/icr18650%2026v-s03-lf.pdf
ICR18650-26V cell.png
 
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