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  1. T

    Battery problem

    Also shouldn't the bms do that?
  2. T

    Battery problem

    Would I need a 4.2 volt charger to balance individual cells
  3. T

    Battery problem

    Recently built a 10 series lion pack out of 18650 cells. 3 cells per cell group for a total of 30 cells. This is the info for the bms my problem is that when the battery is discharged down to 36 volts it cuts out. If I measure it with a voltmeter it will usually read something strange like 15...
  4. T

    3s or 4s for 12v battery

    I think most of us are talking about 18650
  5. T

    3s or 4s for 12v battery

    Are there any fancy balance chargers that could make 3s safe?
  6. T

    3s or 4s for 12v battery

    So if I'm understanding correctly the main drawback of 4s is that you won't be able to fully charge it and the main drawback of 3s is that if the bms fails you will overcharge it and damage the battery/burn your house down?
  7. T

    3s or 4s for 12v battery

    Do you prefer to build 12v lithium batteries with 3 or 4 cell groups and why?
  8. T

    Off grid inverter used on grid

    Something like this https://www.amazon.com/Automaxx-Hybrid-Inverter-between-priority/dp/B01MY6UDOI/ref=mp_s_a_1_9?ie=UTF8&qid=1544936226&sr=8-9&pi=AC_SX236_SY340_QL65&keywords=hybrid+inverter&dpPl=1&dpID=41lIV4EhGkL&ref=plSrch
  9. T

    Off grid inverter used on grid

    Is that how hybrid inverters work?
  10. T

    Off grid inverter used on grid

    I recently got 2 250 watt solar panels can I use an off grid inverter to lower my power bill if I'm not interested in selling power back to my utility company (as I don't hink I'll have much extra)?
  11. T

    Help with BMS

    I tore the whole pack down this morning and found a loose connection thank you for the replies though the problem seems to be fixed. I did also want to ask about soldering the charger to the bms. Is this a bad design? My concern would be the battery would backfeed the charger, the circuit is...
  12. T

    Help with BMS

    Hey everybody my name is Colin this is my first post. I'm pretty new new to E-Bike building but i recently built an e-bike with a 500 watt 36 volt hub motor. I got a used 36 volt lithium battery pack from an electric scooter. My initial problem was the Bms would cut off power at 300 watts (the...
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