E-S Stealth Electric Bike Owners
- Thread starter voicecoils
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Rix
100 TW
1abv said:
Check out Allex's (now Big Bore's) Bomber. https://endless-sphere.com/forums/viewtopic.php?f=6&t=62650
Rix
100 TW
whitebomber said:
Missed this earlier, Awesome pics, looks like great riding.
Thx for the link I remember that from a while ago.. cool build.. looks like he swapped out the cav3 and some other bits. wanted to see how far I could go w stock gear and larger battery. Maybe that doesn't make a difference? I don't know that much about controllers/chargers...
Hi all, I bought bomber #145 from fellow E/S member Robohead. The bike was working fine we he droped it off at a bike shop I used to crate it up for shipping. I reassembled the bike tripple checked all connections and charged the battery (80v max) off the charger. Plugged it in and everything looks normal, C/A fired right up and display numbers on all screens looks right. I twist the throttle and crickets, I mean nothing, No noise, rotation or resistance from motor, No controller noise nothing. I have been searching the threads and I'm sure I am just missing it. I have general knowledge of the systems involved
And I am looking for some advice or direction to the info to troubleshoot and fix my B52. Thank s in advance.
And I am looking for some advice or direction to the info to troubleshoot and fix my B52. Thank s in advance.
Rix
100 TW
1abv said:
If you had a battery like Allex's in your Bomber, it would automatically perform better with the stock running gear as your volt sag would be much less which would translate into more peak KW which translates into more accleration/performance. Yah, Allex swapped out the stock controller for the MAX E, but still his bike would have performed a bit better in stock trim with that battery pack for the reasons I mentioned above.
Rix
100 TW
Gaffler said:
Check and make sure all your connections, especially the sensor wires are properly plugged in to each other along with the throttle wire. Make sure the battery is fully charged as well. Give it a try and see what you get.
going to check all the halls next with meterWell I couldn't leave it alone, so I checked the halls with a volt meter and all got voltage. So I started chasing wires. With a little help from Robohead and Mike QSmotor Moser I was able to chase down a broken black wire on the controller side of the jst plug, about 3 inches from the controller itself. So I wired in a new wire and jst plug and YATZEE!! She came right to life. Thanks again to the forum and people that helped me troubleshoot and sort out the problems. Cheers.
Rix
100 TW
Gaffler said:
OUTSTANDING, let the good times roll.
Rix
100 TW
1abv said:
I made my kid a seat for my bike so we go offroading together!! Yes I know very high tech....
Thats cool. Should have done that for my son when he was younger. I just used a towel.
icherouveim
1 kW
bigbore said:Rix said:
My new battery is ready and the first data I have is amazing105Km/h top speed and 104Km range
Also I have 92% of nominal values at 40,3Ah 2894Wh
Great Job!
and Alex is a very good teacher !
Are you happy with VTC6 cells ? How much your battery pack sags when you are at the boost mode?
I am considering VTC5A cells for my next battery pack, I've read they have the smallest internal
resistance available for this capacity and they are voted as the best cells for 2018 for this combo power / capacity.
https://www.18650batterystore.com/Best-18650-Battery-Guide-s/142.htm
icherouveim said:
Yes I'm super happy with VTC6 cells; now I have an e-bike that can outlast me
All depends on the peak and continuous current you want to pull from the single cells.
In my case I have 11.5A peak and 10.5A continuous so with these numbers I stay around 79V full throttle with the battery hot of charge.
This is a picture from the trip I made yesterday. In the background there is Livorno city and the sea.
icherouveim
1 kW
bigbore said:icherouveim said:
Yes I'm super happy with VTC6 cells; now I have an e-bike that can outlast me
All depends on the peak and continuous current you want to pull from the single cells.
In my case I have 11.5A peak and 10.5A continuous so with these numbers I stay around 79V full throttle with the battery hot of charge.
This is a picture from the trip I made yesterday. In the background there is Livorno city and the sea.
That means they are great cells! My 20S-9P battery pack when is charged at 82V (4.15V per cell)
it sags at about 72-74V with load 12,8A per cell.
Next time I will try Sony cells the only think I worry about is that Sony will sell the battery department to Murata
and We don't know if Murata will do the same good job.
Theodore Voltaire
1 GW
https://ebikemarketplace.com/collections/lithium-batteries/products/72v-20-40ah-li-on-e-bike-battery-pack-for-stealth-bomber-electric-bike
From the info I guess 20S8P that is about 11Kg battery if made with Samsung and LG cells because there I read: "Samsung and LG cell only available for 40Ah battery"
I guess it's a good stock Bomber replacement battery at 2.5K USD for the 40Ah type.
Here is a review of the Samsung INR21700-48G
https://lygte-info.dk/review/batteries2012/Samsung%20INR21700-48G%204800mAh%20(Gray)%20UK.html
Then with these data:
Maximum Instantaneous discharging current Amperage of BMS (A): 160
Maximum continuous discharging current Amperage of BMS(A）: 80
We have 20A peak current and 10A continuous current for each single cell and it seems they can leave with 10A continuous:
Interesting is the voltage drop compared to Samsung 30Q:
But now we need some experts to find out if 21700 is better than 18650 in Wh/Kg
Here is the thread of these new battery: https://endless-sphere.com/forums/viewtopic.php?f=14&t=90515
I guess it's a good stock Bomber replacement battery at 2.5K USD for the 40Ah type.
Here is a review of the Samsung INR21700-48G
https://lygte-info.dk/review/batteries2012/Samsung%20INR21700-48G%204800mAh%20(Gray)%20UK.html
Then with these data:
Maximum Instantaneous discharging current Amperage of BMS (A): 160
Maximum continuous discharging current Amperage of BMS(A）: 80
We have 20A peak current and 10A continuous current for each single cell and it seems they can leave with 10A continuous:
Interesting is the voltage drop compared to Samsung 30Q:
But now we need some experts to find out if 21700 is better than 18650 in Wh/Kg
Here is the thread of these new battery: https://endless-sphere.com/forums/viewtopic.php?f=14&t=90515
Theodore Voltaire
1 GW
40 amp hours would really be something. That would basically turn my bike into a motorcycle.
