greenspark
100 W
- Joined
- Oct 23, 2011
- Messages
- 176
In November I bought almost exactly the kit you listed
10T MAC 500W motor
9 fet controller
52V (48V) 11.5Ah triangle A123 Pack + Cell-Man supplied charger
full twist throttle and ebrakes
Installed on a 1996 Gary Fisher hard-tail.
It came with no wiring diagram, so I had to do a plug-and-play and hope it would work out. It works and it is fast.
Best to have Paul supply it with a seven speed gear cluster unless you are sure yours will fit. Mine did not, and I had to buy one at the bike shop. I now have a 12 tooth on order with Paul. Live and learn.
Plugging everything in (only one way to do so, because he supplies all the connectors installed), I discovered that power is on all the time. There is a kill loop that if unplugged shuts the battery off, so I installed a 48v boat switch on the handle bar to kill power. That was fine if I remembered that I had left it on. No idiot lights means idiots forget to switch off.
The full twist throttle comes with a green button that activates the cruise and a red button with a [I O II] on it that somewhat counter intuitively gives three settings for power (50% 75% 100% - programmable as low as 30%).
It comes with two brake cutoff handles but only one plugs in. I spliced the second brake in. The brake motor cutoffs are a safety feature as well as they cut load to the motor which does not need more resistance.
I strongly recommend against the full twist throttle, which I ordered. This evening, I was moving the bikes inside in case of rain, and naturally put my hands on the handlebars to move the bike. I had forgotten to turn the boat switch off (and there are no LED indicator lights to show that there is power), and in a split-second the bike did a full wheelie, flipping over, breaking mirrors and popping the handle off the throttle, springs flying and damaging the throttle's performance. I found the throttle spring in the bottom of my shoe's rubber sole; good thing I was not barefoot. And, with the throttle handle popped off, the motor did not shut off but kept turning at full speed. I had to grab the rear-brake cutoff to stop it (after a couple seconds of shock, since this was totally unexpected behaviour... more typical of a horse than a mechanical device) and then reached for the boat switch to cut power.
The wheelie damaged the full grip so I took a spare, new Wuxing PTT01 thumb throttle that has LED lights when there is power and a red button that I wired in to shut off power (the LED lights become idiot lights just like in a car when the key is on). I also have a half-grip on order and will see if I like that better.
The problem with the full sized twist grip is that it does two things... power and also passive hand grip. If you intend to use a passive hand grip while not on the bike, but just moving it around (or someone else does so) and the motor has power, you will start the motor. As soon as it pulls away, your hand, just holding on (and not expecting this) turns the motor to full throttle and the motor is powerful. It left black skid marks on the concrete. The other problem is that the reminder to turn off the power - a simple LED switch, is not part of the kit that Cell Man sends if you order the full or half twist throttles. If there was a light, one would have an extra reminder to turn off power.
So, my recommendation is to order the thumb throttle and make sure the LED lights are wired. And, if you are an ebike dealer in litigation-happy USA, never sell a full grip throttle unless it has some sort of safety device like a seat sensor that assures the rider is mounted when the throttle is turned. Otherwise, it is a lawsuit waiting to happen.
Other than that minor matter, expect serious speed, and change your riding habits accordingly. Deck the bike out with flashing white and red lights to help drivers see you and be aware of the extra speed. Make sure your brakes are up to the speed (and extra weight). Tell Paul what conditions you expect (we have steep hills, so I needed more torque) and he will make appropriate recommendations and settings. Asking him to send a wiring diagram or post one like Steven Deng's http://elifebike.com/upfile/dtpic/2010/9W/9UJ7.992VA/7UR9T0_KNFD8.pdf.
Paul is in China, but is English, which is exceptionally helpful. He got my kit out promptly and with no fuss.
Enjoy!
10T MAC 500W motor
9 fet controller
52V (48V) 11.5Ah triangle A123 Pack + Cell-Man supplied charger
full twist throttle and ebrakes
Installed on a 1996 Gary Fisher hard-tail.
It came with no wiring diagram, so I had to do a plug-and-play and hope it would work out. It works and it is fast.
Best to have Paul supply it with a seven speed gear cluster unless you are sure yours will fit. Mine did not, and I had to buy one at the bike shop. I now have a 12 tooth on order with Paul. Live and learn.
Plugging everything in (only one way to do so, because he supplies all the connectors installed), I discovered that power is on all the time. There is a kill loop that if unplugged shuts the battery off, so I installed a 48v boat switch on the handle bar to kill power. That was fine if I remembered that I had left it on. No idiot lights means idiots forget to switch off.
The full twist throttle comes with a green button that activates the cruise and a red button with a [I O II] on it that somewhat counter intuitively gives three settings for power (50% 75% 100% - programmable as low as 30%).
It comes with two brake cutoff handles but only one plugs in. I spliced the second brake in. The brake motor cutoffs are a safety feature as well as they cut load to the motor which does not need more resistance.
I strongly recommend against the full twist throttle, which I ordered. This evening, I was moving the bikes inside in case of rain, and naturally put my hands on the handlebars to move the bike. I had forgotten to turn the boat switch off (and there are no LED indicator lights to show that there is power), and in a split-second the bike did a full wheelie, flipping over, breaking mirrors and popping the handle off the throttle, springs flying and damaging the throttle's performance. I found the throttle spring in the bottom of my shoe's rubber sole; good thing I was not barefoot. And, with the throttle handle popped off, the motor did not shut off but kept turning at full speed. I had to grab the rear-brake cutoff to stop it (after a couple seconds of shock, since this was totally unexpected behaviour... more typical of a horse than a mechanical device) and then reached for the boat switch to cut power.
The wheelie damaged the full grip so I took a spare, new Wuxing PTT01 thumb throttle that has LED lights when there is power and a red button that I wired in to shut off power (the LED lights become idiot lights just like in a car when the key is on). I also have a half-grip on order and will see if I like that better.
The problem with the full sized twist grip is that it does two things... power and also passive hand grip. If you intend to use a passive hand grip while not on the bike, but just moving it around (or someone else does so) and the motor has power, you will start the motor. As soon as it pulls away, your hand, just holding on (and not expecting this) turns the motor to full throttle and the motor is powerful. It left black skid marks on the concrete. The other problem is that the reminder to turn off the power - a simple LED switch, is not part of the kit that Cell Man sends if you order the full or half twist throttles. If there was a light, one would have an extra reminder to turn off power.
So, my recommendation is to order the thumb throttle and make sure the LED lights are wired. And, if you are an ebike dealer in litigation-happy USA, never sell a full grip throttle unless it has some sort of safety device like a seat sensor that assures the rider is mounted when the throttle is turned. Otherwise, it is a lawsuit waiting to happen.
Other than that minor matter, expect serious speed, and change your riding habits accordingly. Deck the bike out with flashing white and red lights to help drivers see you and be aware of the extra speed. Make sure your brakes are up to the speed (and extra weight). Tell Paul what conditions you expect (we have steep hills, so I needed more torque) and he will make appropriate recommendations and settings. Asking him to send a wiring diagram or post one like Steven Deng's http://elifebike.com/upfile/dtpic/2010/9W/9UJ7.992VA/7UR9T0_KNFD8.pdf.
Paul is in China, but is English, which is exceptionally helpful. He got my kit out promptly and with no fuss.
Enjoy!
Gotta develop set in stone habits to prevent that happening.
)
