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  1. twinsavage

    Multi Voltage from Series Batteries

    the top plate is about 26 inches across, good guess. for the 22.2v system, just to test it (very briefly) i was going to use 18 "D" batteries in series, but i think i like the idea of the inverter generator better. there will be much debugging so there is no way i will be able to do it all on...
  2. twinsavage

    Multi Voltage from Series Batteries

    there is a 1.8kw 22.2v brushless motor in charge of air compression, and there is a large counter weight on the crankshaft of the compressor which will cause the motor a great deal of load during spin up, so i am expecting full load for a couple of seconds on the batteries just to be safe. the...
  3. twinsavage

    Multi Voltage from Series Batteries

    The 7.4 volt circuit will probably pull around 30-40 amps during activity (at least its not as bad as the 22.2 volt circuit, which can pull 90 amps peak but should go down to less than half of that while in normal use) i'm incorporating some DC-DC converters into the design, but for the lower...
  4. twinsavage

    Multi Voltage from Series Batteries

    i will probably opt for two distinct battery systems in the end, due to lipos under voltage cut off requirement thank you for you help and just for kicks this is what this is being used for: http://files.engineering.com/getfile.aspx?folder=f3407d9a-9e24-47a9-8db1-94ffdcc2b88a&file=1.jpg
  5. twinsavage

    Multi Voltage from Series Batteries

    yes this is very helpful, thank you for your insight. i could even do something like this: http://files.engineering.com/getfile.aspx?folder=256a8bcf-2d61-45a0-a9dd-5e1f7be45852&file=circuit_mod1.JPG to offset the discharge rate of the 7.4...
  6. twinsavage

    Multi Voltage from Series Batteries

    hello, i would like to know hypothetically if there would be any adverse (mainly the cells being damaged) effects of wiring a battery system like this: there are three 7.4 volt lipo cells and they are wired in series to provide 22.2 volts, would it be wise to also wire them in parallel to...
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