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18650 Cells for 48V 10A E-Bike Battery Build: Assessing Quality and Cost Efficiency

Michal1369 8331 7
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Treść została przetłumaczona polish » english Zobacz oryginalną wersję tematu
  • #1 16407374
    Michal1369
    Level 7  
    Hello, while searching for cells, I came across an interesting offer, namely:
    [wrong link]

    My goal is to make a battery around 48V and 10A
    From my calculations I found that I need 13S3P which will give me exactly 48.1V and 10.05A using these cells. Which means it needs 39 batteries, which gives me an attractive price of $122.85
    However, compared to other cells, these cells come out much cheaper, which is a bit suspicious to me. I would like to ask the more experienced if these batteries are worth buying and will they serve me well in my e-bike?
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  • #2 16407576
    WędkarzStoLica
    Level 31  
    I would take Panasonic in our country, I have a very good opinion about this company.
    From my old laptop, the 7-year-old cells are still alive, they flicker in the screwdriver.
    http://www.mareo.eu/akumulator-panasonic-ncr18650b-3400-mah-pin-plaski-p-1218.html
    And he didn't mess with shipping from abroad.


    Panasonic, as everyone knows, makes very good AA Eneloops.

    When I am doing an electric bike, I will use LiPo, but I prefer to have excess electricity than the contact at 18650.
    5000mAh 14.8V costs PLN 140 on the Allegro, what is it worth, I have no idea (I was not interested yet), but I will take the risk because I will only need 4 packages.
    It will cost me PLN 100 more than the Panasonic 18650, but I will have such electricity that I will run the car on it.
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  • #3 16408246
    Michal1369
    Level 7  
    I live in the USA, so the batteries are there for me, the site is surely I have read a lot of positive comments about it, I'm only interested in the information whether these cells are not a fake because they are very cheap despite the fact that they are from the LG brand company and have a relatively high capacity like to that price.
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  • #5 16408305
    Michal1369
    Level 7  
    I think I will buy 1 fire for now and test on imax if it really has such capacity and internal resistance and whether it will not heat up.
  • #6 16408321
    Zbigniew 400
    Level 38  
    In edager, record the car launch as you do
  • #7 16408431
    WędkarzStoLica
    Level 31  
    You have hundreds of movies on YT.
    The continuous current of such a battery is 100A, with a pulse of 150A.
    A packet of two LiPos gives 200A of continuous current.
  • #8 16408463
    Zbigniew 400
    Level 38  
    Factory battery back-up only.

Topic summary

The discussion revolves around the selection of 18650 cells for building a 48V 10A e-bike battery. The user expresses concern over the low price of certain LG cells, questioning their authenticity and reliability. Responses suggest that while Panasonic cells are highly regarded for their quality, there are also concerns about counterfeit LG cells in the market. A recommendation is made to purchase a single cell for testing its capacity and internal resistance before committing to a larger order. The conversation highlights the importance of verifying cell quality, especially when prices seem unusually low.
Summary generated by the language model.
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