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  1. M

    Revive LiIon pack?

    Correct - there was no BMS during the 3 months of downtime. all of the other parallel groups were fine though, so I'm still searching for answers as to what happened. I don't want to make the same mistake twice!
  2. M

    Revive LiIon pack?

    Thanks all for the advice. I ended up pulling the 25 cells out as this will be a pack I use often and its just not worth the risk. All the cells are reading abut 200mV so there was definitely an issue. The scary thing to me is that I still can't find a trace of what the issue may have been...
  3. M

    Revive LiIon pack?

    I have a 20S 25P Samsung 30Q pack with a zeva BMS. I had the pack off the bike for about 3 months as I worked on the mechanical aspects (no BMS for that time). Today, as I was hooking up the battery to the rest of the system, I noticed that one of my parallel groups was at 0.00V on my BMS, the...
  4. M

    Samsung 30Q ideal Max/Min Voltages

    It's pretty clear from a little research that I should charge my 20S25P pack of Samsung 30Q cells to between 4.0V-4.1V but I can't seem to find any consisticany about a minimum voltage. I want to balance longevity and range but I've heard widely varying answers from 2.5V-3.5V. Can anyone provide...
  5. M

    18650 Configuration - 24S20P or 20S24P?

    Thanks for all of the responses guys. Its true that 100V is right at my component maxims and I agree that this bike should be fast in either configuration, I just want to try to make the optimal pack if I'm going through the trouble :D E-beach: I understand what you are saying but even if you...
  6. M

    18650 Configuration - 24S20P or 20S24P?

    Motor is ME1616 which can handle 250A continuous and controller is Seven Gen4 size 6 which can handle 225A continuous. Cells are Samsung 30Q which can handle 15A continuous. So I am looking at 300A or 360A continuous. The problem I am running into is this is my first build so I'm not sure how to...
  7. M

    18650 Configuration - 24S20P or 20S24P?

    Okay good to know. I live in Nashville and am converting a 1970 Honda cb450 for a city bike to get me to and from work. I'm looking for it to be as quick as possible at low speeds considering most of my riding will be sub 50MPH. Sounds like I want to stick with my original plan, 20S24P. Thanks...
  8. M

    18650 Configuration - 24S20P or 20S24P?

    I am about to build a pack for a E motorcycle build. I have 500 Samsung 30Q's and a Zeva BMS capable of 24S. I was just about to start laying out a 20S24P configuration when it hit me that I may want to switch it. Both my motor and controller can handle the voltage/current with either...
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