When running two batts. together, a question

[_paralyzed_]

the 4s in parallel: is 20c (20) 3000mah (3) will get you 60 amps (20 x 3) and your amps will increase to 120 with two such batts in parallel.

we need to know the "c" rating of the 2s to speculate........

edit: if the 2s is 20c than amp ratings will be the same. so you have 120 amps (120) times 14.8 volts (14.8) gets you 1776 watts (120 x 14.8) worth of power, or 2.39 hp (1776w / 743w) 1hp=743w

[_paralyzed_]

series or parallel wiring is dependent on the batteries you use, but are both just two different ways to achieve the same goal. one is not better than the other.

you are correct, "c" rating can be less when wiring in parallel. in parallel, load capacity doubles. In series, voltage doubles

[magman]

Originally Posted by _paralyzed_

the 4s in parallel: is 20c (20) 3000mah (3) will get you 60 amps (20 x 3) and your amps will increase to 120 with two such batts in parallel.

we need to know the "c" rating of the 2s to speculate........

edit: if the 2s is 20c than amp ratings will be the same. so you have 120 amps (120) times 14.8 volts (14.8) gets you 1776 watts (120 x 14.8) worth of power, or 2.39 hp (1776w / 743w) 1hp=743w

A 2.39hp Revo should scoot right along...


Thanks Harold for the technical data

[_paralyzed_]

np. Linc makes a good point about the charging. When I charge batts in parallel, I hook up the charger's balancer to pack a, and a astroflight blinky in pack b, and alternate pack a and b every other charge.

Originally Posted by magman

A 2.39hp Revo should scoot right along...


Thanks Harold for the technical data

remember you will need a motor capable of that, all the battery is doing is having the power available for the motor to use and its up to the motors design as to how much power it will be drawing

[lincpimp]

Originally Posted by _paralyzed_

the 4s in parallel: is 20c (20) 3000mah (3) will get you 60 amps (20 x 3) and your amps will increase to 120 with two such batts in parallel.

we need to know the "c" rating of the 2s to speculate........

edit: if the 2s is 20c than amp ratings will be the same. so you have 120 amps (120) times 14.8 volts (14.8) gets you 1776 watts (120 x 14.8) worth of power, or 2.39 hp (1776w / 743w) 1hp=743w

A good rule of thumb is to take 70% of your lipos output ability and see if that looks like what the system will draw. So 1776 watts x .7 = 1243, or 1.7hp.

Not too bad for a revo, but on a 4s setup I would like to see lipos capable of 150amps cont, so you have around 2 hp going to the motor.

120 amp setup would be better for 5s...