Question Wondom Bms

Discussion in 'General Discussion' started by djsedaw, Feb 15, 2020.

  1. djsedaw .

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    Was looking on the Wondom website and they have some battery management units, was wondering if any of the could be used in handheld building?

    http://store.sure-electronics.com/list/5/46

    5S 18650 5-24V INPUT LITHIUM BATTERY BALANCE AND PROTECTION EXTENSION BOARD - BCPB3[720]

    • 5-24V Wide Range Charging Voltage
    • Hybrid Charging Sources
    • Supporting Extension Board with
    • Dual 5V 2A USB Discharge Ports
    • Multi-discharging Ports
    • Solar Charging Supported
    • Large Capacity with 5 cells 18650 Batteries
    • LED Indicators for Battery Status
    • Balance Protection
    • Short Circuit Protection
    • Over-temperature Protection
    • Over/Under Voltage Protection
    • Output/Input Over-current Protection
    • Over-charge and Over-discharge Protection
    • Weight: 168g/0.37lbs (±10%)
    • Size: 4.8 x 3.6 x 1.28 inches
     
  2. Wesk Moderator Staff Member . .

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    Sure, you could use something like that but it's quite large and you'd also need additional regulators to set your required voltages. A PMS from the Bitbuilt store has all of this on a single board and is only a fraction of the size.
     
  3. djsedaw .

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    Thanks, it's just there cheep to get in the UK.
     
  4. Aurelio The Fixer ᕕ( ᐛ )ᕗ Staff Member . . . . .

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    That thing plus regulators capable of stepping down 18.5V (5S) will cost you basically just as much as a PMS and won't work as well
     
  5. Stitches 2 and a Half Dollarydoos Staff Member . .

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    I'm just imagining all the heat coming off that board and whatever poor heavy duty regs you'd try to run the system off. You'll need some serious airflow and a pretty hefty case, no PLA for you for sure, it'd warp in an instant.

    Maybe give that plan a miss eh?
     

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