Search results

Date Relevance Most replies

  1. K

    diy "universal" charger power suply : need advice.

    until now i believed the bms integrated into the battery pack itself was supposed to take care of this. and cut the charge(or discharge) off if it detects something out of balance during the charge AND discharge periods. was i wrong ? bms inside battery packs : can they detect individual...
  2. K

    diy "universal" charger power suply : need advice.

    ok not many reactions + i think i have difficulties to understand your last post defuso (i'm french), so i will reformulate : is there a way to create a safe "universal" battery charger (for example : 4v to 60v, 2 to 5A), starting from a computer power supply 12v rail, based on aliexpress...
  3. K

    diy "universal" charger power suply : need advice.

    of course defuso. but assuming i equip any diy battery pack i make with a suitable bms according to the nb of cells in series and paralel, i can't see a major risk. :?: and again, if i understand correctly, this module...
  4. K

    diy "universal" charger power suply : need advice.

    For some time I have been accumulating 18650 cells from recycling in order to make batteries for all types of projects. I've already made myself a microwaveoven-based spotwelder, which works, but I haven't startedthe battery assembly because I have nothing to charge the packs, and don't want to...
  5. K

    Bafang BBSHD BBS02 mid drive -- Flexible OpenSource firmware

    i follow this thread since my first ebike. this project seems very advanced now, and i'm very tempted to try this on my new 52v bbshd, but there is a detail that i may have missed : will it work with my 850c display ? i've seen mentionned the eggrider or the dcp18 but i don't remember reading...
  6. K

    bbshd x chainstay -> grinding motor housing / bike frame?

    :!: french here i hope my english is understandable i have installed a 100mm bbshd on a 100mm bb fat bike with an offset chainring keeping my chain line ok. i was forced to use some washers on the drive side (3mm total) in order for the motor housing to clear the chainstay. i compensated this...
  7. K

    bbshd : need advice befory i buy

    merci matador, limpide tes explications. je m'y attendais un peu à toutes tes explications mais vu le ré-investissement après le vol j’espérais un peu éviter les coûts que les bons choix de matos impliquent forcement. thank you matador, very clear explainations. everyone, any comments on...
  8. K

    bbshd : need advice befory i buy

    fist : i'm french, i hope you will understand my english. short story : last year i built a bbshd 48v fat bike, it was great but it was stolen, so i do it again. but this time i see some bbshd advertised in 52v, so i hesitate to go 52v. here ...
  9. K

    bbshd-fatbike : measurements/setup -> advice required

    Hello everyone. so, to to quickly summarize : electric fat bike project in 48v. not yet decided which engine to install (tsdz2 / bbshd / hubwheel) but the bbshd is still an option, but an expensive one so i have to measure twice, buy once. the bike arrived recently, confirmation of the BB in...
  10. K

    tsdz2 questions before i buy

    thank you ilu for your response. i will check your links, i allready started to read about firmware flashing and modding. so, to be clear : i can buy any model that is 48v AND 100mm bb without problem and then just "reprogram" it as a stock 750w ? i have another question about the form...
  11. K

    tsdz2 questions before i buy

    hello everybody, i need advice about choosing a motor for my new fatbike short version : just bought a fatbike with 100mm BB, want to diy electrify the bike with 48v, and i would prefer a mid drive over a hubmotor . from all i read about it i have to chose from two options : bbshd from...
  12. K

    DIY spot-welder, transformers from microwave ovens?

    thank you krlenjuska , very interesting that we use the same MOT may be you can tell how to get the best of it ;) : on your spt welder, how many turns, what awg, and what timer controlls it ? the one you linked to on aliexpress ? can you detail your setup ?
  13. K

    DIY spot-welder, transformers from microwave ovens?

    thank you for the explanations kdog :thumb: and you were right : i have only 0.1 x 5mm strip ATM. can just using thicker strip be a/the (temporary) solution for getting good connection without piercing ? for the quicker timer do you have a suggestion for a cheap plug and play item that i...
  14. K

    DIY spot-welder, transformers from microwave ovens?

    you can see the timer i'm usig on pic 2 an 3, a cheap timer relay from ebay as i said. i think it is this model : https://www.ebay.fr/itm/5V-30V-Delay-Relay-Timer-Module-Trigger-Delay-Switch-Micro-USB-1343Z/183863247036?hash=item2acf1a80bc:g:qY4AAOSw8ZhdFmM9 the pulse seems very short (way...
  15. K

    DIY spot-welder, transformers from microwave ovens?

    hello everybody, i'm new here and need some help. i may build an e-bike some day, i'm still only collecting info for now but one big part of it will be to build a 18650 battery pack. to do this i built a diy spot welder from scavenged parts including a microwave transformer. but it is working...
Back
Top