Low voltage cuttoff

[BsudRC]

Is setting my LVC on my alarms at 3.6v for my 4s packs too low or is that a good LVC for maximum runtime?

 

[WickedFog]

That's what I use if possible.

 

[DavidB1126]

Thats good. In my mind, A little high, but if you want max run time, I set mine to around 3.2 / 3.3v/cell. On my race spec batteries, since I like to keep them balanced and healthy, I have mine set to Auto. But after a race they are usually on 3.7v/cell (5 to 7 minute races)

 

[BsudRC]

Thats good. In my mind, A little high, but if you want max run time, I set mine to around 3.2 / 3.3v/cell. On my race spec batteries, since I like to keep them balanced and healthy, I have mine set to Auto. But after a race they are usually on 3.7v/cell (5 to 7 minute races)

Well I'm not racing just bashing. I like to get atleast 15mins on my 5200 and 5500 packs. If I can get 30mins run on 2 packs I'm good. I just don't want to take them down too far that's dangerous or Shorten the life of the packs

 

[DavidB1126]

Yea 3.6 should leave your batteries healthy. Aslong as you don't run them below 3.0v/cell your fine.
I ran a battery down below that once. The voltage dropped very quickly and the cells became unbalanced, and the internal resistance went up. But after that on its own, it recovered and balanced out. Good thing I had LVC on.

 

[tntpoof]

The this is as your voltage goes lower the punch drop in a battery will increase so you lvc cutoff might need to be adjusted lower to give you the battery run time your after..and lipo will have a voltage com back from a lower voltage ...

 

[fstnd]

Does this also matter to the 7.2v batteries for my absima 1/16?

 

[BsudRC]

The this is as your voltage goes lower the punch drop in a battery will increase so you lvc cutoff might need to be adjusted lower to give you the battery run time your after..and lipo will have a voltage com back from a lower voltage ...

What do you mean a comeback from lower voltage? I just want to make sure I don't set the LVC too low. I want it set to the minimum that I'm safe at without any harm

 

[DavidB1126]

Does this also matter to the 7.2v batteries for my absima 1/16?

If they are nimh then no. Nimh can be fully discharged. If lipo, then yes LVC is a must. I choose around 3.4v/cell.

 

[Lukedavis]

What do you mean a comeback from lower voltage? I just want to make sure I don't set the LVC too low. I want it set to the minimum that I'm safe at without any harm

He doesn't really know how to spell sometimes so I would just try the things we already suggested for you!

 

[DavidB1126]

What do you mean a comeback from lower voltage? I just want to make sure I don't set the LVC too low. I want it set to the minimum that I'm safe at without any harm

Idk the full science behind lipos. I just do on what everyone else does.

 

[Lukedavis]

What do you mean a comeback from lower voltage? I just want to make sure I don't set the LVC too low. I want it set to the minimum that I'm safe at without any harm

on my truck, i have it set to 3.4v/cell

 

[WickedFog]

What do you mean a comeback from lower voltage? I just want to make sure I don't set the LVC too low. I want it set to the minimum that I'm safe at without any harm

Voltages of the cells will dip low when running. Afterwards, the voltages will climb back up slightly.

 

[BsudRC]

So then 3.4 is safe and will give me maximum runtime without any harm to my packs?

Voltages of the cells will dip low when running. Afterwards, the voltages will climb back up slightly.

Ok then I should be safe to drop on down to that 3.4v mark

 

[WickedFog]

So then 3.4 is safe and will give me maximum runtime without any harm to my packs?

Ok then I should be safe to drop on down to that 3.4v mark

The lower you go, the more run time you will get. But it has the potential to be harder on your batteries. You can go to 3.2 if you want. That's your choice. But me personally, I stay at 3.6.

 

[tntpoof]

when you low voltage is engaged at . 3.8 volts a cell. if ou wait when rc slow or stops a few seconds you will see if you check the voltage it will have more volts than your set lvc. that's a recover or bounce back
Do a bench test. discharge to a set voltage .let battery sit for a few seconds .wow its at a higher voltage.to prove my statement

 

[Greywolf74]

3.6V/C is plenty good. I usually run at 3.2 or 3.4 V/C

 

[tntpoof]

3.6V/C is plenty good. I usually run at 3.2 or 3.4 V/C

yah but is it really 3.6 volts a cell or is 1 higher and one lower .dont know any esc that monitors each cell of a lipo..This is the reason I use a settable battery alarm on my lipo in use

 

[BsudRC]

Ok this is crazy, I put one of those LVC alarms on my battery, I set it to 3.6v and just as soon as I start running my car the thing starts alarming. Why the heck does it alarm so quick?? The battery is still fresh!

 

[WickedFog]

Ok this is crazy, I put one of those LVC alarms on my battery, I set it to 3.6v and just as soon as I start running my car the thing starts alarming. Why the heck does it alarm so quick?? The battery is still fresh!

Likely your battery is seeing a voltage drop on at least one cell. What are the IR's of your cells? Either that or you got a bad voltage alarm like I did. Do you have another voltage alarm to try?