E-S Stealth Electric Bike Owners

Show off your E-bike creation here.
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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jan 07 2018 8:47am

so a lower top end keeps me a lot more sensible.
Wisdom there my friend.

JumperJackFlash   100 W

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Re: E-S Stealth Electric Bike Owners

Post by JumperJackFlash » Jan 07 2018 10:43am

Cowardlyduck wrote:
Jan 07 2018 5:50am
Well I couldn't resist. Even though I still don't have a chain/rear derailleur mounted, I took the new battery out for a spin tonight as the sun was setting.

CD,

Post a video for us please.

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bigbore   1 kW

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Re: E-S Stealth Electric Bike Owners

Post by bigbore » Jan 10 2018 2:52pm

Cowardlyduck wrote:
Jan 07 2018 5:50am

With no pedalling, I was hitting the new battery pack hard, drawing 6.5KW. My Boost mode amps limit is currently 115A which means it was giving me 115A at 56.5V. That's insane! The full charge voltage of this pack is 58.8, but I had not even fully charged it before this ride, so it was sagging less than 2V at 115A!
Image
My Adaptto could be overshooting the amps limit for a moment also, which is entirely possible. I know the CA does this also, so my assumptions above could be wrong, but even if they are...my average battery voltage being 52.1 means each cell was at 3.72V average for a 49.1Wh/km ride which is pretty hard going so that is certainly promising.
Oh and in case your wondering...I did hit 85Kph, but that was with a quick test of OVS 3 set on my Adaptto. The normal max speed with this battery and my 5T Leaf motor is about 65Kph which I'm more than happy with most of the time.

Cheers
Did you reset battery cycles to zero? I was thinking of doing it with a new battery and I don't know if is possible without setting also tot km to zero?

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Cowardlyduck   10 MW

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Re: E-S Stealth Electric Bike Owners

Post by Cowardlyduck » Jan 10 2018 4:12pm

bigbore wrote:
Jan 10 2018 2:52pm
Did you reset battery cycles to zero? I was thinking of doing it with a new battery and I don't know if is possible without setting also tot km to zero?
I didn't do that yet actually...still need to.
JumperJackFlash wrote:
Jan 07 2018 10:43am
CD,

Post a video for us please.
I didn't make a video of the battery build (there are plenty out there just like this), but I will try and do another ride video in the next few months.

Cheers
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

Modified Stealth Fighter - Force air cooled motor @ 6KW, Heat-sinked Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

The stuff I make and modify.

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Cowardlyduck   10 MW

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Re: E-S Stealth Electric Bike Owners

Post by Cowardlyduck » Jan 14 2018 5:54am

Well, so much for a ride video in the next few months....I took the bike out for a 60km blast today. :mrgreen:
I managed to use about 75% of the battery as I was going pretty hard. What's great about this pack is that I can go basically as hard as I like and I know I will always be able to get at least about 75km. I checked the pack a bunch of times to see if it was getting hot. It only got barely warm towards the end of my ride after I had been hitting it with repeated 100A bursts for about 10km. So basically the only way I could hurt this pack would be with deliberate abuse. :D

I will try and make the video this coming week hopefully, but in the mean time, enjoy these shot's:
Image
Image
Image

While I was up there I had this hilarious experience. I had just previously scared away a flock of sheep and had stopped and was videoing a huge eagle (no idea what type) and did a bit of a panoramic shot, then right on queue a sheep came out of nowhere as if to say 'Screw you'!

You couldn't make that happen even if you tried. :lol:

Cheers
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

Modified Stealth Fighter - Force air cooled motor @ 6KW, Heat-sinked Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

The stuff I make and modify.

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jan 14 2018 12:05pm

NIce pics CD and glad the battery is performing as intended. You smell that stink CD? That stink is you because you are the $h!t. :lol: in all seriousness, awesome job on the battery and beautiful pics. Can't wait to see your video.

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Lash   100 W

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Re: E-S Stealth Electric Bike Owners

Post by Lash » Jan 18 2018 10:01pm

Great shots CD, awesome distance on the battery. Will have to come and visit Canberra again sometime and go for an epic ride or 2. Certainly a great "city" for ebiking, so many options mixed throughout the place.

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Re: E-S Stealth Electric Bike Owners

Post by JumperJackFlash » Jan 19 2018 11:21am

Nice vid CD :lol:

Brute   100 W

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Re: E-S Stealth Electric Bike Owners

Post by Brute » Jan 20 2018 6:10am

https://ausgofar.smugmug.com/Stealth/i-QJ2bVMD
A nice vid of one of our recent rides . That bloody fence wasn`t there last time though .

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jan 20 2018 6:56am

Brute wrote:
Jan 20 2018 6:10am
https://ausgofar.smugmug.com/Stealth/i-QJ2bVMD
A nice vid of one of our recent rides . That bloody fence wasn`t there last time though .
nice video, that was neat seeing the trees open up to the surf, and the roos running along.

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Re: E-S Stealth Electric Bike Owners

Post by JumperJackFlash » Jan 20 2018 12:16pm

Cool vid Brute. :D

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Cowardlyduck   10 MW

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Re: E-S Stealth Electric Bike Owners

Post by Cowardlyduck » Jan 21 2018 12:59am

Here's the video of my ride last weekend up Castle hill.
This was the first time I had been up this hill, so didn't get as many fly by shots as I would have liked to make a decent video, but still ok.
Enjoy!


Oh and yeah, Lash or anyone else who is keen for a ride I'm definitely up for that. :) If anyone is around Canberra flick me a PM I always keen to go riding with any other E-bikers...and I'm always happy to adjust my speed (insanity) to suit. :lol: :mrgreen:

Cheers
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

Modified Stealth Fighter - Force air cooled motor @ 6KW, Heat-sinked Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

The stuff I make and modify.

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jan 21 2018 4:33am

Very nice video CD, excellent editing and 3rd person shots! I could tell that was a beautiful ride. I cross posted this comment on your personal thread as well.

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Cowardlyduck   10 MW

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Re: E-S Stealth Electric Bike Owners

Post by Cowardlyduck » Jan 21 2018 4:53am

Thanks Rick!

And that offer goes for you/ international followers also...if you ever find yourself down in in the land of Oz, feel free to hit me up, I'm always up for a ride. :)

Cheers
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

Modified Stealth Fighter - Force air cooled motor @ 6KW, Heat-sinked Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

The stuff I make and modify.

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Trelos   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Trelos » Jan 25 2018 10:03pm

Hey Guys
Im new to the forum and would like to say i have found the info here very helpful !
Ive just recently finished restoring a bomber , (it was a barnyard find and i had to rebuild it to every last nut and bolt) and have a question in regards to a battery build.
The original battery that came with the B52 had 6 cells not registering any voltage so I've decided to replace it and go the 18650 route.
Im thinking 21s 8p would suit my needs but am not sure whether to go for a 20 amp discharge rate cell like the LG HG2 3000 mah 20a
or will the LG Mj1 3500mah 10 amp cell have as much punch ?
Since Im continuously using full throttle while accelerating will the high amp cell be a better option ?
Thanks in advance
Here are a few photos of the rebuild!
Attachments
IMG_2255.jpg
before
IMG_2374.jpg
this bomber had done a lot of kms!
IMG_2262.jpg
wires cut, rusted chain, bent rotors , etc
IMG_2363.jpg
after careful examination i knew i was up for a full restoration.
IMG_2444.jpg
but after a bit of elbow grease
IMG_2449.jpg
and ordering new original parts from the very helpful crew at Stealth electric bikes
IMG_2450.jpg
IMG_2467.jpg
i ended up with this !
IMG_2485.jpg
my girls F37 and my B52 ready to rock
Stealth bomber ,PowerVelocity 24 fet ,17kw
Stealth fighter, 96v lipo

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Cowardlyduck   10 MW

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Re: E-S Stealth Electric Bike Owners

Post by Cowardlyduck » Jan 25 2018 10:51pm

Welcome Trelos.

Good job on the restoration! I keep telling myself that, one day these bikes will be like the early Harley's or Ducati's of the E-Bike world. Worth a pretty penny in good condition.

As far as the battery goes, I would advise going with the high discharge cells if only doing 8P. If you can stretch the parallel count higher...i.e. 10P+ then I would say you can get away with the 3500mah cells. The higher the parallel count the better ultimately.

Cheers
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

Modified Stealth Fighter - Force air cooled motor @ 6KW, Heat-sinked Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

The stuff I make and modify.

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Trelos   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Trelos » Jan 25 2018 11:13pm

Hi Cowardlyduck
Thanks for the advice :)
Ill have to make a choice soon cause I've been using a lipo set up 20s 5p , having to balance charge each pack individually is not very practical
i wouldn't recommend it !
So am i correct to say by using a LG mJ1 cell with a 10 amp cont discharge rate if i multiply the 9p x 10 amp it will only give me 90 amp cont
discharge .Where as the 20 amp cell will be 180 amp cont?
Stealth bomber ,PowerVelocity 24 fet ,17kw
Stealth fighter, 96v lipo

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Cowardlyduck   10 MW

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Re: E-S Stealth Electric Bike Owners

Post by Cowardlyduck » Jan 25 2018 11:47pm

Trelos wrote:
Jan 25 2018 11:13pm
Hi Cowardlyduck
Thanks for the advice :)
Ill have to make a choice soon cause I've been using a lipo set up 20s 5p , having to balance charge each pack individually is not very practical
i wouldn't recommend it !
So am i correct to say by using a LG mJ1 cell with a 10 amp cont discharge rate if i multiply the 9p x 10 amp it will only give me 90 amp cont
discharge .Where as the 20 amp cell will be 180 amp cont?
You don't have to balance charge Lipo packs individually....you can just bulk charge to less than 4.2V per cell then balance charge the rest in parallel groups. Many of us (including myself) have been doing it this way for years.

As for the discharge rate, yeah you are right, but I wouldn't apply that to a continuous rate...at least not for very long periods. The main reason is heat...check out this video to see why:
https://www.youtube.com/watch?v=an9-i23mGqc
So my 14S14P pack I recently finished building has the potential for 140A, but I would only say that is peak, not continuous. In normal riding conditions you shouldn't be drawing huge amps like that anyway unless your cruising down the highway at 100Kph or going straight up the side of a mountain. Even in stop/go traffic you will be on/off the throttle and therefore amps draw.

What controller are you planning to use? The original stock controller will only do 65A from memory.

Cheers
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

Modified Stealth Fighter - Force air cooled motor @ 6KW, Heat-sinked Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

The stuff I make and modify.

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Trelos   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Trelos » Jan 27 2018 12:47am

Cowardlyduck wrote:
Jan 25 2018 11:47pm
Trelos wrote:
Jan 25 2018 11:13pm
Hi Cowardlyduck
Thanks for the advice :)
Ill have to make a choice soon cause I've been using a lipo set up 20s 5p , having to balance charge each pack individually is not very practical
i wouldn't recommend it !
So am i correct to say by using a LG mJ1 cell with a 10 amp cont discharge rate if i multiply the 9p x 10 amp it will only give me 90 amp cont
discharge .Where as the 20 amp cell will be 180 amp cont?
You don't have to balance charge Lipo packs individually....you can just bulk charge to less than 4.2V per cell then balance charge the rest in parallel groups. Many of us (including myself) have been doing it this way for years.

As for the discharge rate, yeah you are right, but I wouldn't apply that to a continuous rate...at least not for very long periods. The main reason is heat...check out this video to see why:
https://www.youtube.com/watch?v=an9-i23mGqc
So my 14S14P pack I recently finished building has the potential for 140A, but I would only say that is peak, not continuous. In normal riding conditions you shouldn't be drawing huge amps like that anyway unless your cruising down the highway at 100Kph or going straight up the side of a mountain. Even in stop/go traffic you will be on/off the throttle and therefore amps draw.

What controller are you planning to use? The original stock controller will only do 65A from memory.

Cheers
ok cool
cheers for the video
Im using the stock controller that came with the bomber atm , the cycle analyst took me a little while to figure out :roll: coming from a background of racing rc cars for 30 years didn't think it would be too complicated but i got there in the end !
In saying that I must admit im finding it a little difficult working out a smooth acceleration setting using 84 volts in the fighter , its very responsive.
Is there another controller you would recommend for the bomber ?
cheers
Stealth bomber ,PowerVelocity 24 fet ,17kw
Stealth fighter, 96v lipo

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Cowardlyduck   10 MW

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Re: E-S Stealth Electric Bike Owners

Post by Cowardlyduck » Jan 27 2018 5:14pm

Trelos wrote:
Jan 27 2018 12:47am
Is there another controller you would recommend for the bomber ?
Well I would say Adaptto is still the 'best' controller you can get, but there's a few issues with them.
-It can be very hard to tune correctly. Many people have ended up running them with sub-optimal settings (myself included) which generates additional heat in the motor.
-The company seems to be in a state of limbo atm...noone really know's if they will be back, so support/warranty is a bit of a question.
-I would say figuring out the Adaptto is about 3-4 times harder than the CA, so if your adverse to frustrating technical difficulties, don't get an Adaptto.

If you can live with all that...get an Adaptto. :)

Apart from that, I've only used Infineon, and Grinfineon controllers. The Infineon's are bog standard old school square wave, the same as what the Bomber/Fighter come with as standard. They are noisy and slightly less efficient compared to newer sinewave/FOC. They don't make the Grinfineons in high enough current versions to work well with the Bomber.

Another option I have no personal experience with is these:
https://endless-sphere.com/forums/viewt ... 31&t=75888
If I didn't already have an Adaptto Midi-E for my Alpha build, I would probably be giving one of these a try.

Hope that helps. :)

Cheers
High Power LiPo wiring harnesses - 4P - XT90, HXT4mm, 5.5mm. 200Amp+ capable. Global shipping.

Modified Stealth Fighter - Force air cooled motor @ 6KW, Heat-sinked Adaptto Mini-E. 49AH, 52V 18650 - 2.5Kwhr
Cowardlyducks - Stealth Fighter Videos

BikeE recumbent commuter - 9C, 6Fet Grinfineon, internal 17AH, 52V, + on-board solar.

The stuff I make and modify.

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jan 27 2018 7:10pm

Trelos wrote:
Jan 25 2018 10:03pm
Hey Guys
Im new to the forum and would like to say i have found the info here very helpful !
Ive just recently finished restoring a bomber , (it was a barnyard find and i had to rebuild it to every last nut and bolt) and have a question in regards to a battery build.
The original battery that came with the B52 had 6 cells not registering any voltage so I've decided to replace it and go the 18650 route.
Im thinking 21s 8p would suit my needs but am not sure whether to go for a 20 amp discharge rate cell like the LG HG2 3000 mah 20a
or will the LG Mj1 3500mah 10 amp cell have as much punch ?
Since Im continuously using full throttle while accelerating will the high amp cell be a better option ?
Thanks in advance
Here are a few photos of the rebuild!
Welcome to the thread. Very nice restoration job, looks brand new.

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Trelos   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Trelos » Jan 31 2018 12:52am

Cheers Rix !
Thanks Cowardlyduck for the info on the simwave bluetooth controller , I like specs of the 18 fet. Ive tried contacting Power Velocity because
there is no option to ship to Au on their web site.
Ill let you guys know what its like , hopefully soon !
Stealth bomber ,PowerVelocity 24 fet ,17kw
Stealth fighter, 96v lipo

Mattof37   1 mW

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Re: E-S Stealth Electric Bike Owners

Post by Mattof37 » Jan 31 2018 2:21pm

Hi,

Can anyone tell me if I've been sent the wrong battery for my new stealth fighter F37 the battery says 12v 14ah ?

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Re: E-S Stealth Electric Bike Owners

Post by Mattof37 » Jan 31 2018 2:34pm

Hi can anyone tell me if I've been sent the wrong battery for my new stealth fighter F37 the battery says 12v 14ah?
Which can't be right.
Please see pictures below.

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Rix   100 GW

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Re: E-S Stealth Electric Bike Owners

Post by Rix » Jan 31 2018 11:06pm

Mattof37 wrote:
Jan 31 2018 2:34pm
Hi can anyone tell me if I've been sent the wrong battery for my new stealth fighter F37 the battery says 12v 14ah?
Which can't be right.
Please see pictures below.
Take a volt meter and check the main power leads, if the volts are somewhere between 48 and 58 volts, you have the correct battery.

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