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one for thye electrronics experts? need some help
#1
need some help with a circuit wondere if anybody can help me, im trying to make a anti spark switch which turns on high cuttent turns on a 12s battery, ive designed a momantry on off part of the circuit which turns on 2 mosphets, but i need a turn off after say 5 mins on no use on the battery so i soppose it must monitor current? or maby some other way maby, or is there a small pcb available with this somewhere [/size]
Battery is li iron using 18650s, 14s, 0p, and growing cell so far 300, untesteded.
Bms is a diy open source by stuartpittaway.
No solar yet, 
Building wind turbine, 48v im after a 48v motor if anybody has one for sale.
Cells 2000 to 2500ma.
Cells 1500 to 2000ma.
Cells 1000 to 1500ma.
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#2
So you're looking for a timer that runs for approx 5 mins & switching circuit off when little/no power is being drawn?
So a 5 min timer with a reset input and a current sense circuit to feed the reset?
Running off solar, DIY & electronics fan :-)
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