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  1. Elmweaver

    Airless Tires -data all in one place-

    frock YOU ASSHOLE
  2. Elmweaver

    How to protect your e-bike tires from flats

    Why not just go to the airfreetires.com website and just read for yourself instead of posting every page found on the internet from every site that sells an urethane elastomer compound tire. http://www.airfreetires.com/Testimonials/ I love you posting the $25.99 tool first on your list...
  3. Elmweaver

    Battery Packs - Where to buy them

    Not sure if this thread is for SLA battery packs also. If it is then here is a place I found with good prices. I can't say if the batteries are good though will have to wait until I can afford some to find out. :lol: :lol: :lol...
  4. Elmweaver

    How to protect your e-bike tires from flats

    Yes so as Reid has pointed out using one of Sheldon Brown's pro cyclist rants Do Not Use Airfree Tires * * While riding down steep rocky ravines where the impact as you collide and bounce your way to the bottom of the mountain might cause more impact onto a single area of the tire then the rim...
  5. Elmweaver

    Battery wiring

    Lessss, I would not try to get that involved with it. I just don't see the need to go through all that. I do need to correct what I said last night though. I said it backwards because I did not realize at the time that the 48V was the primary source. What will happen is that the 4 batteries...
  6. Elmweaver

    Battery wiring

    Sorry Lessss, I am not seeing the single battery in parallel with the 36Volt groups in the drawing above. I see where your saying it in the drawing but not where it is connected in parallel. Does not sound like a good thing to do anyway. But I am brain dead tonight I will look again after some...
  7. Elmweaver

    Battery wiring

    hmm, to much math for one day has me given me a brain cloud. :lol: :lol: :lol: Not this thread Lessss but another one. Ok, I think what I was saying is that when you use the 48 volt leg you are draining all four batteries. However when you switch over to just using the 36 volt leg you are...
  8. Elmweaver

    Mongoose CB 24V450 -Motor Only Range (NiMH)- Pinkerton Park

    The EP12 has a 30 minute rate of 6 amps (12ampdraw). So our battery should be a little less then that, certainly no more then that. My guess is the fans drew 6.85 amps in the 57 minutes they ran based on the 7.2a/hr rate. Or pretty close to that anyway. :oops: should have refreshed before I...
  9. Elmweaver

    Mongoose CB 24V450 -Motor Only Range (NiMH)- Pinkerton Park

    Ok, I have re-read and re-read and it appears I was not talking apples and oranges. You had 4 fans that draw 3 amps each at 24V connected to the batteries and timed them to see how long they would last? Was that the test? If so, 12amp draw should have not even lasted close to an hour for the...
  10. Elmweaver

    Mongoose CB 24V450 -Motor Only Range (NiMH)- Pinkerton Park

    I think I should mention that the SLA battery was at a major disadvantage because a 3 amp drain means its rating was more like 9 AH versus the 12 AH of the NIMH. So, hmmm, does that mean since the NIMH was so close in spec to the SLA that maybe its rating is not 12AH currently either? Calling...
  11. Elmweaver

    Battery wiring

    Well 1 battery in each pack will not be drained in unison with the others over the course of your ride so they will be unbalanced to some degree. If you were using just one for lets say lights or some small drain then it might not be a big deal but with 3 getting a big drain and 1 each not when...
  12. Elmweaver

    My1020 Unite Motor

    Lesss, I can't help much with what your working on, but here are a few links that may lead in the right direction. http://www.electricscooterparts.com/sprockets.html http://www.monsterscooterparts.com/sprockets1.html http://www.scooterparts4less.com/all_electric_scooter_parts.htm
  13. Elmweaver

    Mongoose CB 24V450 -Motor Only Range (NiMH)- Pinkerton Park

    You want to be careful though I don't think you are supposed to go below 1.0V per cell with NIMH. I was thinking earlier that its possible the controller is cutting off before your getting to 20V though which is fine and you want that with the SLA cells even though you could go to 1.6V per cell...
  14. Elmweaver

    Electric Car Purchase - *Possible*

    Right now I think he is looking at getting a Xebra and souping it up. They are a 3 wheel electric car (loop hole) and as such are considered a motorcycle under most states laws. So they are not restricted to the same speed requirments as the GEM. You are correct about the GEM being a NEV which...
  15. Elmweaver

    which hub motor

    I think your choice of the dual speed hub sounds good. I would suggest calling EVsolutions and see if you can drop by and tryout the kit on one of their bikes. You are lucky you live in the same town as the company since you can do that and not just have to guess you are making the right decision.
  16. Elmweaver

    Mongoose CB 24V450 -Motor Only Range (NiMH)- Pinkerton Park

    Yep I agree with that, of course since the batteries weigh a lot less you could use say 2x24Vx10A NIMH battery packs at about the same weight (as the 2 SLA) and get a pretty good increase in distance, about 20 miles total would be my guess. Seems that this bike gets about a mile for each rated...
  17. Elmweaver

    Mongoose CB 24V450 -Motor Only Range (NiMH)- Pinkerton Park

    hmmm, I am surprised, I thought you might get more then just one mile more. The other test was using batteries that were not broken in yet too. Just shows to go ya. :lol:
  18. Elmweaver

    .

    If your wheel bearings need grease or replacement then it would be a good time to check the bottom bracket bearings as well. I don't have all the tools needed to do those jobs so it is easier if you have the money to just let a bike shop check and do it if needed. I think its like a $50 job...
  19. Elmweaver

    .

    http://howtofixbikes.blogspot.com/2006/08/how-to-grease-bicycle-wheel-bearings.html You may want to replace them while your in there. - Dan
  20. Elmweaver

    Mongoose CB 24V450 - Upgrade to NiMH Battery Pack

    I found it but it was not NIMH it was Lithium batteries. "Aging of lithium-ion is an issue that is often ignored. A lithium-ion battery in use typically lasts between 2-3 years." and 300-500 cycles. How they tested:
  21. Elmweaver

    Mongoose CB 24V450 - Upgrade to NiMH Battery Pack

    My understanding is their life is not measured in cycles but time. With 3 years being the general time limit of them. :cry: EDIT: Ok, now I am not sure, I could swear I read that but now can't find it again. Did find this at Battery University - "nickel-metal-hydride. We observe good...
  22. Elmweaver

    Mongoose CB 24V450 - Upgrade to NiMH Battery Pack

    Well first trip was 2 miles before they went to red and the last ride for distance was 8.5 miles before red. So they have recovered some what. I am on the 8th charge at present but its been raining everyday so I have not ridden in a couple days now. Figured it would be good to try and let my...
  23. Elmweaver

    Mongoose CB 24V450 - Upgrade to NiMH Battery Pack

    I think its more a statement to the poor condition of the batteries that came with our bikes. Mine were 8 months old and I have no doubt in my mind they never received a topping charge at any time after they were put into the battery case. If even before then. I think last charge they had before...
  24. Elmweaver

    Mongoose CB 24V450 - Upgrade to NiMH Battery Pack

    Well you know looking at the pictures first thought that came to my mind was it looks like 3 more NIMH batteries could be added to the pack and still fit. So that would be a 27.6 volt pack? Might not over heat the motor and who knows might even bump up the speed a 1-2mph. Of course charging it...
  25. Elmweaver

    Mongoose CB 24V450 - Upgrade to NiMH Battery Pack

    I was not meaning to imply that what you were doing was wrong or anything I was just thinking ahead for myself. Because if I ever got one of those batteries someday it would be to replace the existing batteries for good. Thats what got me to thinking about it. I know you are using yours as a...
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