SMP, the way to increase the current going to the motor is to increase the voltage, that is what doing a dual cell mod is all about, the increase of the voltage to the motor.
But, (theres is always a downside), the extra weight of the second cell stops the car handling as good as it did as a single cell car.
Another option is a Lithium polymer cell, these are light as a single cell, and are 3.7volts (roughly 150mAH) so its like having a triple cell car in the weight of a single cell. BUT (and this is a big downside), you need an expensive charger to recharge it as the LiPo cells are VERY sensitive, and if you charge them wrong they go into a coma and never return. And at around AU$12 each for a cell it can get expensive to kill these.
Another option, (the best option so far) is to FET mod the cars electronics. This allows more current to flow to the motor without the need for the second cell, and it can still be charged on the original controller.
Just while we are on batteries, did you know that the controller only puts about ONE TENTH of full charge in to the cell in a BCG. So much better run times can be achieved by charging multiple times. Each charge delivers a little less than the charge before it, but theses cars can be charged up to 8 times, easily. Or the ultimate is using a delta peak charger to completly fill the cell to 100% full.
A full (original) 50mAH cell will run for about 20 minutes, so there is really no point changing the cell to a larger one if you arent filling the one you have in the car anyway.
So there you go.
:)uA
Edited by – micro_Amps on 20 October 2003 10:08:50
