Voltage cutoff with 2x 2S.

Originally Posted by azjc

IMO your truck will start to slow down before it hits the LVC, I set mine at 3.3 vpc

Exactly. I have mine sent at 3.2 per cell and you can tell its dead/slows way down right before it hits the LVC.

If Castle says 3.0v, thats good enough for me

[Unsullied_Spy]

Originally Posted by Freezebyte

If Castle says 3.0v, thats good enough for me

Yeah it'll work, but I like to turn mine up just to stay safe. The new auto-lipo with customizable V/cell is awesome (I set mine to 3.4, when you have Maxamps lipos you can't be too careful ).

Do you have a CC Link for your Flux yet? If not, I have a spare one you can have.

Originally Posted by Unsullied_Spy

Yeah it'll work, but I like to turn mine up just to stay safe. The new auto-lipo with customizable V/cell is awesome (I set mine to 3.4, when you have Maxamps lipos you can't be too careful ).

Do you have a CC Link for your Flux yet? If not, I have a spare one you can have.

Nope, I don't have $25 on me for one. I'd like one, it looks nice and easy, at least compared to using the transmitter.

[Unsullied_Spy]

Originally Posted by Freezebyte

Nope, I don't have $25 on me for one. I'd like one, it looks nice and easy, at least compared to using the transmitter.

I've got a spare one from my replacement Mamba Monster that I'm not using (only need 1 and you can program all kinds of CC stuff). We live close enough we could meet up to bash sometime and I can give it to you then or I can put it in an envelope and mail it.

Originally Posted by Freezebyte

Would that explain why on my first long bash session with my Savage flux, it all of a sudden got VERY slow and then actually stopped and wouldn't go anymore unless I let it sit for a second and if I blipped the throttle, it would go for a few feet then stop again?

I was running SMC 6000mAh 28C 2S.

That sounds exactly like the voltage cut off to me. It slows you down at first to let you know you're running out of juice, then it will cut out to keep the cells from going under the LVC threshold. The reason it will move a few feet after waiting is the voltage in the cells recover a little when there's no load.

Originally Posted by Unsullied_Spy

I've got a spare one from my replacement Mamba Monster that I'm not using (only need 1 and you can program all kinds of CC stuff). We live close enough we could meet up to bash sometime and I can give it to you then or I can put it in an envelope and mail it.



That sounds exactly like the voltage cut off to me. It slows you down at first to let you know you're running out of juice, then it will cut out to keep the cells from going under the LVC threshold. The reason it will move a few feet after waiting is the voltage in the cells recover a little when there's no load.

Wow, so its the same thing you can order from Castle for the Flux? So all I need to download the software? It comes with all the cables? How much you want for it? I live in Missoula, FYI. I tried to send you a PM, but its not showing I sent it.

Ah ok, so I didn't hurt my Lipo's then, they were just really drained mAH wise but the voltage was still safe?

I posted my first bash session with my Flux today here: http://www.rc-monster.com/forum/showthread.php?t=20716 Was fun as hell, I was just worried cause I didnt' know how a "voltage cutoff" for a Lipo worked or how my truck would react to it.

[BrianG]

Originally Posted by RUSTY XL-5

Oh no you didn't! Your in for it now.

No no, I'll be gentle (this time ). My personal opinion is that no BL system should need a fan if it is set up right. If it heats up, then you are pushing the system beyond it's specifications. Besides, a fan cures the symptom, not the problem. Not only that, but a fan can (and will) fail, so if you are relying on a fan to maintain good temps, then the system will thermal when it fails.

However, if you are using a fan to supplement a system that runs cool without one, then that's fine. But I still think the benefits are not worth it. The only systems I have that run fans are the ones with a MMM, and that's because the warranty will be void if I remove it. Heck, I even run a couple of Quark 125's perfectly fine (temps ~30-40* above ambient) with no fan, and those are known for running hot.

[RUSTY XL-5]

Originally Posted by Foxracin

Exactly. I have mine sent at 3.2 per cell and you can tell its dead/slows way down right before it hits the LVC.

Same here, I think with a 3.3V cut off, it should stop just before the RC begins to slow down.

[mistercrash]

Is it true that lipos are supposed to be able to be safely brought down to 2.7 volts per cell? So this means that setting the LVC at 3 volts per cell would be very cautious? And the LVC set at anything more than 3 volts per cell would just take away at run time unnecessarily? I would love for someone with a lot of knowledge about lipos to answer these questions for me.

Originally Posted by Foxracin

Exactly. I have mine sent at 3.2 per cell and you can tell its dead/slows way down right before it hits the LVC.

Would that explain why on my first long bash session with my Savage flux, it all of a sudden got VERY slow and then actually stopped and wouldn't go anymore unless I let it sit for a second and if I blipped the throttle, it would go for a few feet then stop again?

I was running SMC 6000mAh 28C 2S.