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  1. gaisom

    The dog ate my Derailleur (sort of) Need raplacement info

    Today I jumped on my Trike, got set to go, beat the dog away because he gets so excited. I was in Granny low when I took off and ran over the toy he had dropped under the trike. Bang, chain falls off, I almost fall off, and the trike comes to a sudden halt. I put the chain back on and it...
  2. gaisom

    Confused on all these kit wattage claims, HELP PLEASE

    :? I am trying to figure out just how many watts my motor will be putting out. In doing much (confusing) reading on the net trying to figure this out I have come up with.. Mac kit at 500/1000 watts = 500 at 37v and 1000 at 50.4v When I figure it out with the Battery Max Discharge amps...
  3. gaisom

    Balance Charger with 14s capability ?

    I am wondering why I have not been able to find a Li-on charger that can do a single balance port 14s charge? Is it just that the manufacturers have not caught up with the power people are using? Or is there some problem with building a charger that will do that? :?
  4. gaisom

    Need help deciding about USX HD20 etrike upgrades

    I currently own a Sun USX HD20 Trike with a wilderness energy 24v Brushed (Aotema) 20"front hub motor and some dyi 18650 10s packs I made up to try and keep it cheap. The trike as it is won't do what I need it to. I need to be able to ride the trike for an estimated 20 mile round trip with a 2...
  5. gaisom

    Tube type 10 cell 18650 battery pack Questions

    Has anyone put one together with the button top 18650 cells? Wondering about short circuit problems using a single spring on the bottom and copper 1/4 20 Studs for contacts and lead connections on each end? :roll:
  6. gaisom

    Battery Charging question Lico 8s

    I am using an icharger 1010B+ I noticed on one pack when I went to charge it that cells 1 thru 7 were from 3.70 to 3.74 However, cell 8 showed at 4.10 and made me think it had not discharged, like it had a bad connection. The voltage for the whole pack reading was correct though. I checked...
  7. gaisom

    Dual pull brake lever with switch for Trike

    I am having trouble finding a dual pull switched brake lever for my HD20 trike. It has mechanical rear disc. I want to be able to use the switch to control the front hub when I hit the rear brakes. I have found a scooter one that might work, Figured I would post it and see what you guys thought
  8. gaisom

    Before I start building my pack I have three questions.

    I am going to be using 8s packs. 18650 Sanyo 2200ma cells #1 Should I set them up as 4s packs and connect them in series for ease of balance charging and replacing bad cells? #2 What size balance leads should I be using? max discharge C will be 2amps, and max Charge C of 1amp. I have...
  9. gaisom

    In Depth Charger/Cell Information

    I thought Someone might like this info. Copy and Paste this http://www.analog.com/static/imported-files/tutorials/ptmsect5.pdf for more information. Hmm, it hotlinked it without me telling it to :) Enjoy
  10. gaisom

    Homemade battery cases

    I have noticed that most people make the cases for their batteries using a really tight wrap of heat shrink and other insulating material. Some even put the whole thing in a fireproof case. I have been thinking of doing mine a little differently, and would like some input on it. I am thinking...
  11. gaisom

    Do new laptop batteries in a homemade pack need a breakin?

    I have a bunch of new 18650 cells from laptop battery replacement blister packs that were never opened. I can't figure out whether I need to do the charge/discharge cycles required to get the best life out of new batteries. Anybody know?
  12. gaisom

    Capacity testing new cells required?

    Should I do capacity testing on new unused cells from HP 12cell laptop batteries that have never had the blister pack opened before building my battery packs?
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