Search found 133 matches

by Jil
Jan 25 2021 4:10am
Forum: Battery Technology
Topic: Running 2 different Li-ion batteries in parallel ?
Replies: 3
Views: 211

Running 2 different Li-ion batteries in parallel ?

Hello, I want to run 2 batteries in parallel on my ebike, both home-made : - 52V, 14S-6P & 14S-4P. - identical BMS for both batteries : 35A, single port (for charge and discharge). - identical cells (Samsung INR35E, 3450 mAh). - the controller is a Phaserunner, the motor a GMAC. - I use my ebike...
by Jil
Jan 14 2021 11:28am
Forum: EBike Technical
Topic: MAC GMAC Hot Rod Info
Replies: 33
Views: 1759

Re: MAC GMAC Hot Rod Info

Jil...I sent Grin Tech an email because I wasn't sure going to 72v will help your Phaserunner...below is a quote from their response. "at the same speed, the system would need the same amount of phase current and it's independent of the battery voltages. Therefore the Phaserunner would be as h...
by Jil
Jan 14 2021 11:23am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Direct Drive motor vs. central motor for a motorbike / QS138 90H vs. DD55
Replies: 2
Views: 239

Direct Drive motor vs. central motor for a motorbike / QS138 90H vs. DD55

Hello, Do you know what is the impact in terms of handling & comfort (on & off road) of installing a central motor vs. a rear direct drive hub motor ? I'm talking about the suspended weight which will be much higher with a hub motor. The choice would be between QS138 90H and DD55 (if you see...
by Jil
Jan 09 2021 8:26am
Forum: EBike Technical
Topic: MAC GMAC Hot Rod Info
Replies: 33
Views: 1759

Re: MAC GMAC Hot Rod Info

Thanks a lot for your answers everybody :) I've tried the motor simulator, it appear that either with 52V or 72V battery, I can run a bit higher than 50 kph continuously without overtheating (flat land, no wind). But from my experience the 52V battery voltage goes quickly donw below 50 V, thus limit...
by Jil
Jan 08 2021 3:31am
Forum: EBike Technical
Topic: MAC GMAC Hot Rod Info
Replies: 33
Views: 1759

Re: MAC GMAC Hot Rod Info

Hi, I currently ride a Surly Krampus with GMAC 8T + Phaserunner controller + 52V (14S) battery, and 29" wheels, mainly for off-road use (beaches). It's nice but I find it a bit limited in max speed, and the controller gets limited also quickly due to high temp at max speed and power (around 160...
by Jil
Oct 20 2020 7:01am
Forum: EBike General Discussion
Topic: Statorade in large direct drive motor ?
Replies: 10
Views: 408

Re: Statorade in large direct drive motor ?

Thank you for your advices :)
by Jil
Oct 16 2020 3:55am
Forum: EBike General Discussion
Topic: Statorade in large direct drive motor ?
Replies: 10
Views: 408

Statorade in large direct drive motor ?

Hi, I'm thinking about buying the Silence S01 scooter : https://www.silence.eco/en/s01/ I have 50km ride to go to work, mainly on road, so I would like to be able to use it at max power for at least 30 to 40 km. From feedback of existing users, it seems that the "sport mode" of the SO1 (ma...
by Jil
Oct 13 2020 3:21am
Forum: E-Scooter and Motorcycle General Discussion
Topic: E-motorbike with removable battery for 60 km range at 80-90 kph
Replies: 1
Views: 289

Re: E-motorbike with removable battery for 60 km range at 80-90 kph

I'm answering to myself :wink:

--> the Silence S01 ticks all boxes for me, except the lack of ABS.
https://www.silence.eco/en/s01/
by Jil
Oct 11 2020 5:51am
Forum: E-Scooter and Motorcycle General Discussion
Topic: E-motorbike with removable battery for 60 km range at 80-90 kph
Replies: 1
Views: 289

E-motorbike with removable battery for 60 km range at 80-90 kph

Hi, Everything is in the title :wink: I'm looking for my 50 km-daily commuting (40 km of road and 10 km of city) an electric motorbike (or eventually scooter) that allows a minimum range of 60 km, riding at 80-90 kph on road. I cannot charge at home directly on the bike, that's whay I need a removab...
by Jil
Sep 19 2020 8:40am
Forum: EBike Technical
Topic: Is regenerative braking really worth anything?
Replies: 104
Views: 3244

Re: Is regenerative braking really worth anything?

My answer : yes it worths it. I have GMAC, with 14S6P battery (52V), I have set up my regen to 15A (ie. 800 watts), it is now my main brake in current use. I use the hydraulic brakes only in case of emergency, or to "finish" the stop. I think it worths it becasue it is smooth and you are g...
by Jil
Sep 16 2020 7:14am
Forum: EBike Technical
Topic: Cycle Analyst v3 + phase-runner : using the throttle as regen brake ?
Replies: 8
Views: 332

Re: Cycle Analyst v3 + phase-runner : using the throttle as regen brake ?

No, thanks :)
Indeed I think that I will finally replace my old hydraulic rear brake by a mechanical one, and use a brake cut-off lever that I have in stock to activate the regen (and still keep the mechanical rear brake for emergency).
And remove the throttle.
by Jil
Sep 15 2020 3:26pm
Forum: EBike Technical
Topic: Cycle Analyst v3 + phase-runner : using the throttle as regen brake ?
Replies: 8
Views: 332

Re: Cycle Analyst v3 + phase-runner : using the throttle as regen brake ?

Thanks !
If somebody else can propose me a solution, I take it ;)
by Jil
Sep 08 2020 6:40am
Forum: EBike Technical
Topic: Cycle Analyst v3 + phase-runner : using the throttle as regen brake ?
Replies: 8
Views: 332

Re: Cycle Analyst v3 + phase-runner : using the throttle as regen brake ?

Could someone help me ?
I would just like to know how to set up my Cycle Analyst (or my Phaserunner), I have found no information on Grin's documentation.
Thanks :)
by Jil
Sep 07 2020 6:46am
Forum: EBike Technical
Topic: Cycle Analyst v3 + phase-runner : using the throttle as regen brake ?
Replies: 8
Views: 332

Cycle Analyst v3 + phase-runner : using the throttle as regen brake ?

Hi,
Is it possible to set up a simple throttle (the one provided by Grin with the GMAC kit) only for regen braking ?
I don't need a throttle for the motor, as I prefer using a PAS.
by Jil
Sep 05 2020 3:36pm
Forum: EBike General Discussion
Topic: 1 kW motor : rear G360, GMAC, 9C RH212, Crystalyte H3540 - or front Grin All Axle ?
Replies: 69
Views: 10216

Re: 1 kW motor : rear G360, GMAC, 9C RH212, Crystalyte H3540 - or front Grin All Axle ?

After 10 months, my Surly Krampus with GMAC is working well. I have made aroud 2500-3000 kms with it, without any trouble. I have juste encountered some spoke breakages on the rear wheel, but it was due to a bad mounting (by me...) This summer I have made a quick trip from south of France to Bardena...
by Jil
Sep 05 2020 3:29pm
Forum: EBike General Discussion
Topic: 1 kW motor : rear G360, GMAC, 9C RH212, Crystalyte H3540 - or front Grin All Axle ?
Replies: 69
Views: 10216

Re: 1 kW motor : rear G360, GMAC, 9C RH212, Crystalyte H3540 - or front Grin All Axle ?

mexican_amigo wrote:
Dec 04 2019 12:50am
How fast do you spin out with that chain ring?
I have a 40T front, I pedal at 90 rpm at 45 kph (on the small rear gear of 11T).
by Jil
Aug 05 2020 3:27pm
Forum: EBike Technical
Topic: GMAC on a new Mountain Bike?
Replies: 10
Views: 641

Re: GMAC on a new Mountain Bike?

Regarding teh GMAC, keep in mind that it doestn' have a freewheel in it, so without power it may be very difficult to pedal, possibly much harder than a DD hubmotor due to the planetary gearing No, it's not. I have a Krampus Surly with a GMAC and use it sometimes without battery, it's easy to pedal...
by Jil
May 13 2020 2:47am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Small motor 5-10 kW
Replies: 5
Views: 771

Re: Small motor 5-10 kW

Thank you for the advices :) The QS3000 looks good. for my use. 3000W nominal is perhaps a bit low. Has it a big brother ? The PMS80 is really nice, but I don't want to put 1800€ in the motor itself. What do you think of this motor ? With a fan on the shaft to keep it cool. Realistic, or inappropria...
by Jil
Apr 26 2020 10:28am
Forum: E-Scooter and Motorcycle General Discussion
Topic: Small motor 5-10 kW
Replies: 5
Views: 771

Small motor 5-10 kW

Hi,
I'm thinking about building an electric kit for my motorbike.
I'm looking for a small motor, able to work at 5-6 kW continuous (max 10 kW), and with a rotating speed 1000-5000 rpm under 72V.
Do you have advices ?
Thanks !
by Jil
Dec 03 2019 6:40am
Forum: EBike General Discussion
Topic: 1 kW motor : rear G360, GMAC, 9C RH212, Crystalyte H3540 - or front Grin All Axle ?
Replies: 69
Views: 10216

Re: 1 kW motor : rear G360, GMAC, 9C RH212, Crystalyte H3540 - or front Grin All Axle ?

500WhatsThat wrote:
Dec 02 2019 9:53am
My CA3 doesn't seem to repeat the motor temperature from the Phaserunner. The Temp reads -39C, LoL.
Does yours?
No but I don’t have the temperature cable.
Anyways given my use (high speed and flat terrain), the motor is not the limitation. I’ve never found it to be even a bit warm after use.
by Jil
Dec 01 2019 1:15pm
Forum: EBike General Discussion
Topic: 1 kW motor : rear G360, GMAC, 9C RH212, Crystalyte H3540 - or front Grin All Axle ?
Replies: 69
Views: 10216

Re: 1 kW motor : rear G360, GMAC, 9C RH212, Crystalyte H3540 - or front Grin All Axle ?

Quick feedback after 1 month 1/2 and 5-600 kms with my GMAC 8T (on 29" wheel) + Phaserunner + 14S6P battery + PAS : this setup is wonderful ! I'm able to drive at 50 kph on flat, with a power around 1200–1300W. The Phaserunner is amazing, so much power in such a small device ! But it's not made...
by Jil
Oct 21 2019 2:05pm
Forum: EBike General Discussion
Topic: 1 kW motor : rear G360, GMAC, 9C RH212, Crystalyte H3540 - or front Grin All Axle ?
Replies: 69
Views: 10216

Re: 1 kW motor : rear G360, GMAC, 9C RH212, Crystalyte H3540 - or front Grin All Axle ?

Despite my 52V battery and 29 inches wheels, I’ve chosen the 8T following simulations with the Grin tool. My main use is flat terrrain at 45 kph, 28/30 mph. For this 10T would have worked at 50V and higher, but not below. And the climbing capacity doesn’t change. The difference is the motor current ...