J C Posted June 6, 2014 Share Posted June 6, 2014 Hi, just got a brushless hyper 7 with 120A esc. Just wondering if my existing lipos discharge rate is too low? They say 20-30C discharge Thanks Quote Link to comment Share on other sites More sharing options...
Tug Posted June 6, 2014 Share Posted June 6, 2014 Depends on the capacity of the cells and how much current the motor is going to ask for. Can you give us some more info? Quote Link to comment Share on other sites More sharing options...
J C Posted June 6, 2014 Author Share Posted June 6, 2014 Cells are 5000mah turnigy 2s that i will run in series for 4s. I already have a 4s pack that works fine but the discharge rate of that is 30C compared with 20c for the two 2S packs Quote Link to comment Share on other sites More sharing options...
Tug Posted June 6, 2014 Share Posted June 6, 2014 That's a 100 Amp discharge rate, you're cutting it fine! I'd try them, but you must stop every few minutes and check the cells for temps and any signs of puffing. What motor is in the car? Quote Link to comment Share on other sites More sharing options...
J C Posted June 6, 2014 Author Share Posted June 6, 2014 That's a 100 Amp discharge rate, you're cutting it fine! I'd try them, but you must stop every few minutes and check the cells for temps and any signs of puffing. What motor is in the car? Ok. Its an abisma 2300kv Quote Link to comment Share on other sites More sharing options...
Tug Posted June 7, 2014 Share Posted June 7, 2014 Well if it's either a 3674 or a 4074, then ideally you want a 150 Amp discharge rate. This puts the cells at the top, next in line is the ESC at 120 Amp, then finally the motor at ~100 amps. This ensures that the motor can't ask for more amperage than the ESC can handle, or more amperage than the cells can deliver. That make sense? Quote Link to comment Share on other sites More sharing options...
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