Running issues

[Jeremy1976]

So I am getting ready to run my HPI Baja in the pit along with my E Revo tonight again. I went to run my E Revo a little just a bit ago in the road and it had low power in comparison to what it generally does. It almost felt like they do right before the LVC kicks in. It would not do any high speed wheelies or anything. So I put my MA 8k packs on the Hyperion Duo and all 4 cells were around 3.74v and all within good tolerances for being balanced. I checked all my wiring and no bad connections or any binding in the driveline. Any suggestions?

My setup: Tekno Nue 1.5d, MM, CC BEC, 22/58 gearing. Nothing changed except I ran it in a gravel pit. I did thermal my ESC twice out there that day. I will recharge packs fully and check it again. Just thought some of you may have a inclination as to what it could possibly be. Thanks

at 3.7 volts nominal it could be that when you gun it the voltage drops enough to make the motor slower...try charging it and see what happens. If it's not the batteries it mght be the esc...maybe check the castle link settings...could the drivetrain be binding anywhere? Like maybe a rock from the gravel?

[Jeremy1976]

Originally Posted by dpb318

at 3.7 volts nominal it could be that when you gun it the voltage drops enough to make the motor slower...try charging it and see what happens. If it's not the batteries it mght be the esc...maybe check the castle link settings...could the drivetrain be binding anywhere? Like maybe a rock from the gravel?

I did raise the LVC to 12.6v I believe. Maybe the packs were just ready to cut out with the LVC. Who knows. No rocks or any binding. I am recharging as I type and will give it a whirl then. Thanks

[Jeremy1976]

Recharged the packs and it resolved the issue.

Why did you put the LVC at 12.6V Put it at 12V and you,ll be fine.

There is no reason to put it at 12.6V, at 12 V, there plenty secure for your li-po.
You cut in your run time for absolutly no reasons

Originally Posted by david lamontagn

Why did you put the LVC at 12.6V Put it at 12V and you,ll be fine.

There is no reason to put it at 12.6V, at 12 V, there plenty secure for your li-po.
You cut in your run time for absolutly no reasons

I like to set my LVC @3.2 vpc...I have noticed this is about the point the truck starts to slow down anyways and it offers a little more insaurance against going too low

[VintageMA]

I agree with using a 3.2 or 3.3 on the LVC. I've been reading a lot on the heli and plane forums lately because these guy really pull constant hard amps from their batteries and kill them much faster than we do. We're talking running multiple 10S 5000mAh packs in parallel on Neu 2215 and 2230 motors - serious power.

Anyway - it seems that a lot of the guys really have much better battery longevity if they don't drain their batteries more than 80% or rated capacity - as it is that last 20% with the internal impedence of the cells starts to go up and the batteries start to generate a lot of internal heat.

If you are running crap cells you may need to keep the LVC down near 3.0, but if you are running good Enerland based cells then you should be able to do a 3.3v LVC with no problems.