All things R/C

[NTCPrezJB]

Hey Smitty, could you turn your camera over?

Right! Sorry...I’ll try to improve and be conscience of the phone orientation for posting later. Lol

 

[Admin]

 

[Mopower58]

Right! Sorry...I’ll try to improve and be conscience of the phone orientation for posting later. Lol

It's all good, I just stood on my head!

 

[Smitty335]

Rest of today’s pics I took....

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Looks like a blast!

 

[Smitty335]

I need a battery charging lesson, been using a fast charge at 3 amp with the balance port both are S2 Li-Po batteries, one is a 3500 and the other is a 5000 mAh. They don't seem to last long, 15 minutes or so? But it's crawling ledes almost as tall as the 1.9 tires? What am I doing wrong? Thanks!

 

[Adam490]

I need a battery charging lesson, been using a fast charge at 3 amp with the balance port both are S2 Li-Po batteries, one is a 3500 and the other is a 5000 mAh. They don't seem to last long, 15 minutes or so? But it's crawling ledes almost as tall as the 1.9 tires? What am I doing wrong? Thanks!

You should be getting a lot more run time than that. You either aren't charging them all the way or you've got something bound up in the driveline. I can run mine with a 4200 3s for almost 2 hours. That 5000 mAH should run for a few hours easily. Are you sure it's running out of battery and not going into a thermal shutdown? If they get too hot they will shut themselves down.

Does your truck go into a "limp mode" where it gets really slow before totally shutting down? I looked up the low voltage cutoff specs for your ESC and it should cut power to 40% when the battery hits 3.3v per cell:

Does your battery charger have a display that shows the voltage? Just as rule of thumb when charging LiPo's, you charge at "1C" unless the battery specifies it can handle faster charge rates. "1C" would be the mAH of your battery in amps, so your 3500 mAh can charge at 3.5 amps and your 5000 mAh at 5.0 amps. So you aren't charging them as fast as you could be, which might be your problem if you aren't getting enough juice into them. Easiest way is to check it on the charger.

 

[Ridinfool]

Rest of today’s pics I took....

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Well hell, no wonder you came in last...
sneaky sum b****es kept flipping the track over.

 

[Smitty335]

You should be getting a lot more run time than that. You either aren't charging them all the way or you've got something bound up in the driveline. I can run mine with a 4200 3s for almost 2 hours. That 5000 mAH should run for a few hours easily. Are you sure it's running out of battery and not going into a thermal shutdown? If they get too hot they will shut themselves down.

Does your truck go into a "limp mode" where it gets really slow before totally shutting down? I looked up the low voltage cutoff specs for your ESC and it should cut power to 40% when the battery hits 3.3v per cell:

View attachment 251001

Does your battery charger have a display that shows the voltage? Just as rule of thumb when charging LiPo's, you charge at "1C" unless the battery specifies it can handle faster charge rates. "1C" would be the mAH of your battery in amps, so your 3500 mAh can charge at 3.5 amps and your 5000 mAh at 5.0 amps. So you aren't charging them as fast as you could be, which might be your problem if you aren't getting enough juice into them. Easiest way is to check it on the charger.

 

[Adam490]

I think you forgot to type Smitty....

 

[Smitty335]

Well my charger is only rated for 3 amp max and has no voltage meter, just the green light and beeper. I'm about to think the Hobby shop owner is a DA? Time to switch gears. And get the right charger, any suggestions? The same formula go for NiMh Batteries? Smitty. HA!

 

[Smitty335]

I think you forgot to type Smitty....

Sorry.

 

[Smitty335]

Ok checked out the drive system, I can turn the drive shafts, turn the gears on the motor and transmission, can't turn the wheels? Smitty Checked clearance on gear mesh, all is fine?

 

[Smitty335]

Ok guys sorry to be such a DA! I've got a battery rated at 5000 mHa and charge rate of 3C, 15 amps max charge rate?

 

[Adam490]

Ok guys sorry to be such a DA! I've got a battery rated at 5000 mHa and charge rate of 3C, 15 amps max charge rate?

Post a picture of it. I'd stick to just a 1C rate and charge it at 5 amps.

 

[Adam490]

I'm thinking your charger might not be charging them all the way up. Look back a few pages and I posted a decent entry level charger for $49.99

 

[JenElio]

Rest of today’s pics I took....

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Damn!!! I feel like I just watched Inception again 😂😂

 

[Adam490]

@Smitty335

We used to call these "blinkies", but they are just simple voltage testers for LiPo packs. You just plug the balance plug into the port and it shows the number of cells and the voltage per cell.

Looks like Avid sells one for $8 now:

Avid RC LiPo Voltage Tester (2S - 8S) [AVD1406-B]

The Avid LiPo Voltage Checker is a great way to check the voltage of your 2S-8S battery. Check the voltage by plugging the black wire of balance port... AVD1406-B

www.amainhobbies.com

 

[Smitty335]

I'm thinking your charger might not be charging them all the way up. Look back a few pages and I posted a decent entry level charger for $49.99

I believe your right! I saw the Traxxas EZ Pack, I'll look some more.

 

[Adam490]

I believe your right! I saw the Traxxas EZ Pack, I'll look some more.

If you don't have Traxxas vehicles, you might want to shy away from that one. Traxxas uses a proprietary connector that has the balance lead integrated into the single plug. The one I linked before was a little Venom unit for $50.

 

[Wallace]

I believe your right! I saw the Traxxas EZ Pack, I'll look some more.

Get you one of these Smitty.

 

[Smitty335]

Get you one of these Smitty.View attachment 251127

What the Hades is it?