Originally Posted by SLOWINSLOWOUT

The icharger steps up the voltage to the load resistor, so you don't need low ohm resistors. But my resistor bank has an RT(total resistance) of 0.5ohms, so I suspect they are 5 100w 3ohm resistors.



5 10ohm resistors in parallel will give a total resistance of 2ohms, which would only put 4.2amp load on a 8.4v battery.

The formula to calculate RT of a parallel circuit is;

1/RT=1/R1+1/R2+1/R3+1/R4+1/R5

So for 10ohm resistors;

1/RT= 1/10+1/10+1/10+1/10+1/10;

1/RT=0.1+0.1+0.1+0.1+0.1;

1/RT=0.5;

RT=1/0.5;

RT=2ohms


Now we use Ohm's law to figure out current;

8.4v/2ohm=4.2amps

Here are some load resistor bank values;

5 10ohm resistors=2ohm
5 5ohm resistors=1ohm
5 4ohm resistors=0.8ohm
5 3ohm resistors=0.6ohm

Hope this helps