E-S Stealth Electric Bike Owners

Show off your E-bike creation here.
Athaneco   100 W

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Re: E-S Stealth Electric Bike Owners

Post by Athaneco » May 28 2018 10:07am

3 generations of b52. 2012-2014-2018
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whitebomber   10 mW

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Re: E-S Stealth Electric Bike Owners

Post by whitebomber » May 31 2018 12:32am

Top of the World!! .......Well Darling Ranges, WA that is
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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » May 31 2018 10:03pm

NIce pics White Bomber. looks like fun riding.

@Atheneco. Nice collections of Bombers.

1abv   1 kW

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Re: E-S Stealth Electric Bike Owners

Post by 1abv » May 31 2018 10:27pm

purdy.....

Athaneco   100 W

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Re: E-S Stealth Electric Bike Owners

Post by Athaneco » Jun 05 2018 3:24pm

Took my car for servicing. Instead of taking a taxi to go back to the office while waiting for the car to get serviced i loaded the bomber and took of with it. This photo is when service was completed a few hours later, but workshop needed to lift it up once more to check somthing in addition.
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1abv   1 kW

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Re: E-S Stealth Electric Bike Owners

Post by 1abv » Jun 10 2018 1:19pm

Image

Image

bubbly black goo......

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jun 10 2018 8:28pm

Yep, black gold as my grandpappy called it. @Athaneco, nice Bomber transport there.

1abv   1 kW

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Re: E-S Stealth Electric Bike Owners

Post by 1abv » Jun 10 2018 11:20pm

Hey for all you battery folk, whats the biggest / most powerful battery I can put in the bomber while still retaining cav3, stock charger, controller etc? looking to gain a bunch more range...

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jun 11 2018 1:16pm

1abv wrote:
Jun 10 2018 11:20pm
Hey for all you battery folk, whats the biggest / most powerful battery I can put in the bomber while still retaining cav3, stock charger, controller etc? looking to gain a bunch more range...
Check out Allex's (now Big Bore's) Bomber. viewtopic.php?f=6&t=62650

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jun 14 2018 9:35am

whitebomber wrote:
May 31 2018 12:32am
Top of the World!! .......Well Darling Ranges, WA that is
Missed this earlier, Awesome pics, looks like great riding.

1abv   1 kW

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Re: E-S Stealth Electric Bike Owners

Post by 1abv » Jun 14 2018 12:03pm

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...

Gaffler   10 mW

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Re: E-S Stealth Electric Bike Owners

Post by Gaffler » Jun 14 2018 1:28pm

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.

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jun 14 2018 9:56pm

1abv wrote:
Jun 14 2018 12:03pm
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...
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.

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jun 14 2018 10:00pm

Gaffler wrote:
Jun 14 2018 1:28pm
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.
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.

Gaffler   10 mW

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Re: E-S Stealth Electric Bike Owners

Post by Gaffler » Jun 15 2018 4:35pm

Checked all connections again fully charged battery and nothing. :evil: going to check all the halls next with meter

Gaffler   10 mW

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Re: E-S Stealth Electric Bike Owners

Post by Gaffler » Jun 15 2018 10:32pm

Well 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.

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jun 15 2018 11:26pm

Gaffler wrote:
Jun 15 2018 10:32pm
Well 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.
OUTSTANDING, let the good times roll.

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bigbore   1 kW

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Re: E-S Stealth Electric Bike Owners

Post by bigbore » Jul 05 2018 9:38am

Rix wrote:
May 22 2018 12:58pm
bigbore wrote:
May 22 2018 10:01am
This is what I expect from my new Bomber battery that I’ve been building

20S14P Sony VTC6 3120mAh
Nominal values 72V 43,68Ah 3145Wh

Expected Real life values 72V 35Ah 2515Wh
25Wh/Km expected 100Km
30Wh/Km expected 84Km
35Wh/Km expected 71Km
40Wh/Km expected 63Km
I think you are spot on with the estimates. That said, I found it was easy to average about 25wh/Mile when pedal assisting the bomber on flat ground and keeping speeds around 15MPH. I suspect the new battery would be good for close to 100 miles under these conditions, but damn it would be boring as hell to do that for 100 miles.
My new battery is ready and the first data I have is amazing :mrgreen: 105Km/h top speed and 104Km range :mrgreen:
Image
Image
Image

Also I have 92% of nominal values at 40,3Ah 2894Wh :shock:

1abv   1 kW

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Re: E-S Stealth Electric Bike Owners

Post by 1abv » Jul 05 2018 10:39pm

Good god! Who made your battery?

1abv   1 kW

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Re: E-S Stealth Electric Bike Owners

Post by 1abv » Jul 05 2018 10:42pm

Image

I made my kid a seat for my bike so we go offroading together!! Yes I know very high tech....

Image

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bigbore   1 kW

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Re: E-S Stealth Electric Bike Owners

Post by bigbore » Jul 06 2018 7:42am

1abv wrote:
Jul 05 2018 10:39pm
Good god! Who made your battery?
I built it myself


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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jul 06 2018 2:11pm

1abv wrote:
Jul 05 2018 10:42pm
Image

I made my kid a seat for my bike so we go offroading together!! Yes I know very high tech....

Image
Thats cool. Should have done that for my son when he was younger. I just used a towel.

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icherouveim   100 W

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Re: E-S Stealth Electric Bike Owners

Post by icherouveim » Jul 07 2018 12:16am

bigbore wrote:
Jul 05 2018 9:38am
Rix wrote:
May 22 2018 12:58pm
bigbore wrote:
May 22 2018 10:01am
This is what I expect from my new Bomber battery that I’ve been building

20S14P Sony VTC6 3120mAh
Nominal values 72V 43,68Ah 3145Wh

Expected Real life values 72V 35Ah 2515Wh
25Wh/Km expected 100Km
30Wh/Km expected 84Km
35Wh/Km expected 71Km
40Wh/Km expected 63Km
I think you are spot on with the estimates. That said, I found it was easy to average about 25wh/Mile when pedal assisting the bomber on flat ground and keeping speeds around 15MPH. I suspect the new battery would be good for close to 100 miles under these conditions, but damn it would be boring as hell to do that for 100 miles.
My new battery is ready and the first data I have is amazing :mrgreen: 105Km/h top speed and 104Km range :mrgreen:
Image
Image
Image

Also I have 92% of nominal values at 40,3Ah 2894Wh :shock:
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- ... -s/142.htm

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bigbore   1 kW

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Re: E-S Stealth Electric Bike Owners

Post by bigbore » Jul 09 2018 8:12am

icherouveim wrote:
Jul 07 2018 12:16am

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- ... -s/142.htm
Yes I'm super happy with VTC6 cells; now I have an e-bike that can outlast me :D
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.
Image

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icherouveim   100 W

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Re: E-S Stealth Electric Bike Owners

Post by icherouveim » Jul 10 2018 12:58am

bigbore wrote:
Jul 09 2018 8:12am
icherouveim wrote:
Jul 07 2018 12:16am

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- ... -s/142.htm
Yes I'm super happy with VTC6 cells; now I have an e-bike that can outlast me :D
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.
Image
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.

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