How Much Power Does The Receiver Use?

[Stu74]

I got my son a 1/10 off road buggy for christmas (not a tamiya ).

He has an 1800mah nimh battery and i bought him a spare 2000mah so he can have more driving time with it.

The 1800 lasts 10 minutes and the 2000 lasts about 11 or 12 minutes.

I am thinking of maybe getting a 3000+ mah battery for him but i dont know if he will get a great deal more driving time with it.

My tamiya cars used to last for nearly half an hour before i had to charge the battery.I cant remember what batteries i was using but i know they wont have been expensive.

The only difference i can think of is my old cars used seperate batteries for the receiver and my sons car has the new style esc with bec.

I have 2 questions

1) Does the receiver drain much power from the battery?

2)Will the old style receiver battery pack work ok with an esc that has bec?

[Gruntfuggly]

1) The amount of power used by the receiver is relatively tiny compared to the motor.

2) The whole point of the BEC is that you don't need a receiver pack. If you're not using an Rx with a BEC, I'd change as soon as you can - it's so much simpler...

You'll definitely get longer run time out of a 3000 pack.

Is the car ballraced? - that can have a big impact on runtimes - if the transmission isn't easy running, it'll sap battery power. I had a TL01B once with thick grease around all the bushes and it was unbelievably slow - once removed and replaced with proper bearings, it went twice as fast and the battery lasted much longer...

[Stu74]

1) The amount of power used by the receiver is relatively tiny compared to the motor.

2) The whole point of the BEC is that you don't need a receiver pack. If you're not using an Rx with a BEC, I'd change as soon as you can - it's so much simpler...

You'll definitely get longer run time out of a 3000 pack.

Is the car ballraced? - that can have a big impact on runtimes - if the transmission isn't easy running, it'll sap battery power. I had a TL01B once with thick grease around all the bushes and it was unbelievably slow - once removed and replaced with proper bearings, it went twice as fast and the battery lasted much longer...

[Stu74]

Thanks

I am not sure if the car is ballraced as i bought it new already built.It is decent quality and i would say it is ballraced but i will check for definate.

Dosnt sound worthwhile buying a battery pack for the receiver then.I think i will order a battery over 3000 mah and see how long that lasts before needing a charge.

[cubsfan2009]

Receiver and servo will only use about 150mah in 30 minutes. In a 10 minute run your only talking about 50mah or so.

[TA-Mark]

Powering the heavy duty steering servo, the brake/throttle servo and the reciever on my 1:8 Savage (Which is big load with those giant wheels) will eat up a 1400mAh 6.0v (5-cell) sub-c hump pack in about 30 minutes. I would call this the extremes of usage. You know the battery is getting low after the 2nd tank fill (without stopping the engine) because the brakes are getting squishy and the steering is a bit slow.

In a 1:10 electric, as long as your steering end points (EPA) are set right and the servo is not binding or steering joints stiff, the servo and receiver would use about what cubsfan2009 just mentioned, very little.