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  1. jawnn

    shaped beam bike lights??

    looks a bit wide...
  2. jawnn

    shaped beam bike lights??

    I put strobe lights on the side and rear of my cycle truck. But I still need to see the road. strobes for crossing stop light intersections
  3. jawnn

    shaped beam bike lights??

    Are there any?? I need a bright light but only if it has a shaped beam. I may need to buy a motorcycle head lamp. Moderator Edit Removed unnecessary call for violence.
  4. jawnn

    Ebike battery cells LiFePo4 or 29E?

    I thought it was too good to be true.......so I wil have to use the less expinsive cells 29E.........
  5. jawnn

    Ebike battery cells LiFePo4 or 29E?

    I need to buidl a 2kWh pack for my cycletruck. The samsung 29E was recomended, but I don't trust them without using fuses. So I was looking at these new LiFePo4 26650 cells. Thereare a lot of diffences in cells. And LiFePO426650 Rechargeable Cell: 3.2V 3300mAh seems like a lot of power for...
  6. jawnn

    What causes pack fires? [unfused dead cells]

    well thats a relief.....but ai think I want to use fueses any how with the Samsung 29E. the are a lower dinsity cell than the 3400mAh cell every one want to use. 2900mAh and I won't be charging to more than 80%. .......thanks
  7. jawnn

    What causes pack fires? [unfused dead cells]

    I have some oldish double A's that still have a 1.2v charge on them {after acouple years of neglect}. And some that are below 1 volt. I figured those are too dangerous to recharge. I was charging a pair of tripple A's and the got too hot as far as I could tell. I use anitecore intellicharger i4...
  8. jawnn

    30v 18650 cell! About to explode??

    thanks... that explains a lot. now if I can find the manuel for the meter I might under stand it better......
  9. jawnn

    30v 18650 cell! About to explode??

    I put a video of it here : https://commutercycling.blogspot.com/2019/07/bad-batery-odd-voltage-reading.html
  10. jawnn

    30v 18650 cell! About to explode??

    Itook apart an old battery pack I had for bicycle lights, it hadstoped working over the year that I was not able to ride my bicycle.So two good cells at 3.6volts and one that read 16volts! I put it onmy Imax B6 to discharge it but the device said too low of a voltage.When I read the voltage...
  11. jawnn

    LiFePo4 vs LiCo 18650 cells??

    I was looking at a listing of the cells and discovered that aI will have to cram a lot more cells in my small space 8 x 3.2 Volt 26650 LiFePO4 Batteries (3300 mAh) how do these compare to samsung 29E cells?
  12. jawnn

    LiFePo4 vs LiCo 18650 cells??

    Ifit is true that LifePo4 cells are much more stable than LiCoAl ormanganese? I want to buy about 250 cells to use in an Ebike pack. Butis it true that I they can hold 3000mAh in each 18650 cellwithout over charging them? Canthey be charged to 4 volts each? What voltage can theyhold without...
  13. jawnn

    How to make your lithium-ion batterys last longer

    well that SkyRC MC3000 looks prity good. but I really need something to charge a pack. I may have to take out the protection circuit and add ballance wires. I am working on another pack of 4 cells, but I could just take them out to charge them. is this one just as good? Opus BT - C3100 V2.2
  14. jawnn

    How to make your lithium-ion batterys last longer

    Has every one here seen this page about how to make your lithium-ionbatterys last longer? Ihave one of the older Imax B6 chargers (that charges through aprotection circuit), and it has been charging my 18650 cells to 4.2volts. But article tells that below that is much better. So turnedthe...
  15. jawnn

    easyest way to build 18650 pack???

    these look like they hold way to much power....maybe if I hooked apack up to a electric horn that I have....
  16. jawnn

    easyest way to build 18650 pack???

    How is it possible to insert srews into lithium ion cells? this peicture I found shows that it has been done. but no discription of how. is it possible to buy cells that are made sor srews or bolts?
  17. jawnn

    Bicycle lights verses flash lights?

    Re: Bicycle lights verses flash li something like this could b run off a lithium battery pack
  18. jawnn

    New Chargers? ( Hitech and Imax )

    i max B6 mini what a bumer....I got he new B6 mini and it has inproved electronics, with a voltage meter and resistance meter. But teh thing will not charge my 18650 cell pak with out ballance wire conection, or is it the electronics on the pack that stoped it.
  19. jawnn

    New Chargers? ( Hitech and Imax )

    ok, ...I will just buy the new B6 mini
  20. jawnn

    New Chargers? ( Hitech and Imax )

    How do these two new chargers compair? And where can I get heat sesors for them? "HiTec" 44165 X1 AC Plus Single Port 6 Amp AC/DC Charger (NiCd/NiMH/LiPo) "I-MAX" B680AC Dual Power (6Amps, 80Watts): LiPo, LiIon, LiFe, NiCd, NiMh AC/DC Balancing...

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