LVC Setting?

[Muggydude]

So I have a Savy flux with Turnigy 2s 5200mah 30c lipos. What's a good LVC setting? I know that one person said 3.5 is the ONLY safe setting, but castle has the default at 3.0V per cell? Thanks

[E-Revonut]

Anywhere from 3.0 to 3.2 is fine. At 3.5 you will trip the lvc very early as the voltage does dip under load. 3.1 or 3.2 is preffered by most on here as it gives a little safety net from the 3.0 minimum. Even when set at 3.0 though you are tripping it under acceleration when your current draw peaks and voltage dips to its lowest. When resting the cells will still prolly read about 3.3 to 3.4Volts

[reno911]

Depends on how safe you want to play it. LVC is not biased as soon as it read a certain voltage it cuts out. Whether that voltage is do to a heavy load or not is not its choice.

In other words you may be losing run time do to having a high lvc setting.

I have mine set at the default at 3.2 for all my setups. Except the vxl's. Most of the packs will rebound back to 3.4-3.6.

also depends on how good your batteries are under load. the voltage drop of a battery under load is a function of the total internal resistance and current drain rate.

Newer high quality batteries (35-50C) can hold a much higher voltage under load as they have a lower internal resistance. As a result you can run a LVC of around 3.3v whilst still using approx. 80% of the batteries capacity and safe guarding the cells from damage. Internal resistance also increases as the battery nears the end of its usable capacity, exponentially increasing the rate of voltage drop under load and increasing the batteries temperature.

If you are running the battery close to its max continuous 'C' rating ..i.e: your battery is capable of 156A continuous..and you run until a LVC of 3.0V, the Lipo temperatures may increase close to or beyond safe levels (140F), causing damage to the cells (puffing).

Depends on your batteries, but to be safe I would say 3.2 or 3.3V. I have run 3.0V before with no issues .. BUT I was using batteries that were FAR more capable than the brushless system (i.e: drawing 17A from batteries capable of 66A continuous). Hence they only ran warm. Temperature is the killer.