Battery choice

[mini4wd]

Hello Im currently using a 5000 mah 2s gens ace lipo. I was wondering what everyone else was wondering and some suggestions.

[chevy55]

I use a 325mah 3s thunder power g6 pro power.

[RootBreaker]

well this all depends on what your using it for.. i just found this out the hard way this weekend...

I use 3 of these in my ax10 crawler Turnigy 500mAh 3S 20C Lipo Pack
they work great.. are only 20c rating but my crawler does great...


however...
my FOFF I purchased a Turnigy nano-tech 1300mAh 3S 45~90C Lipo Pack (USA Warehouse)
well my son broke the plug off while we were out so couldnt use it.. well having a dean on everything... i just used 2 of the 500mah 20c batteries in parallel.
well turns out I burned out one of them.. it went puff and is no good..so finding out now that I cannot use these batteries for this car!!!!

for my micro's
have
ZIPPY Compact 350mAh 2S 25C Lipo Pack
and
zippy 180mah 2s

[RootBreaker]

Originally Posted by RootBreaker

well this all depends on what your using it for.. i just found this out the hard way this weekend...

I use 3 of these in my ax10 crawler Turnigy 500mAh 3S 20C Lipo Pack
they work great.. are only 20c rating but my crawler does great...


however...
my FOFF I purchased a Turnigy nano-tech 1300mAh 3S 45~90C Lipo Pack (USA Warehouse)
well my son broke the plug off while we were out so couldnt use it.. well having a dean on everything... i just used 2 of the 500mah 20c batteries in parallel.
well turns out I burned out one of them.. it went puff and is no good..so finding out now that I cannot use these batteries for this car!!!!

for my micro's
have
ZIPPY Compact 350mAh 2S 25C Lipo Pack
and
zippy 180mah 2s

my bad.. I did new posts.. and didnt see it was in the FOFF section..

so I am in your boat.. trying to figure it out..
I am hearing a higher mah can result in a lower C rating.. but im thinking batteries are not that expensive.. so go for a high C rating and also make sure it is 2000mah or greater..

[mini4wd]

Originally Posted by RootBreaker

my bad.. I did new posts.. and didnt see it was in the FOFF section..

so I am in your boat.. trying to figure it out..
I am hearing a higher mah can result in a lower C rating.. but im thinking batteries are not that expensive.. so go for a high C rating and also make sure it is 2000mah or greater..

Ya im thinking I need to run a 3s 6000 mah lipo or something around there maybe like 40c

[RootBreaker]

Originally Posted by mini4wd

Ya im thinking I need to run a 3s 6000 mah lipo or something around there maybe like 40c

well from what i was told.. a lil pm in my inbox...

figure out your esc draw... mine is 80a so lets say 100a

so 100 amps devided by 40c cells equals 2,500 mah sized cells.
You can run longer with larger cells.
100 amps devided by 20c cells equals 5,000 mah sized cells.

so hell 6000 mah would need to be super low.. 6C???

[mini4wd]

Originally Posted by RootBreaker

well from what i was told.. a lil pm in my inbox...

figure out your esc draw... mine is 80a so lets say 100a


so hell 6000 mah would need to be super low.. 6C???

Wow thank you for the good info would this be a good battery Turnigy 5000mAh 3S 25C Lipo Pack

[evan03]

ive been running all turnigies in helicopters and planes, 3-6s batteries.

what ive found is mah(capicity) has little to do with disscharge. however i have found discharge rate has everything to do with power ive also found that runnig bateries to low will kill them fast. i was killing lipos faster then i was burning nitro fuel there for awhile.

i try and buy all 30 and higher discharge rated turnigys seems 20s are puffing fiarly easy on the rc cars and 40s are doing very well.

if the battery doesnt like whats going on it puff or so heat

[mini4wd]

I currenty have a 25c 5000 mah gens ace 2s lipo do you think it will be fine?

[stelerzman]

You have to remember that in Foff we are not on full throttle all the time.
I would suggest trying out the batteries you have but keep and eye on the battery and the discharge rate. Do you have a esc with a low voltage cut off?
If not you might want to get a lv alarm. This will tell you when you get towards the end of the pack without puffing it.

This goes with all vehicles, esc's and batteries.

[Hacksaw707]

I run Hyperion G3 3300mah 45-90c 3s, and some Gens ace 2600mah 55c 3s, I've run each one on my FOFF rigs at least 30 times, no puff barely warm, killed esc and motor but the packs held up great, get the highest C rating and the biggest mah you can fit.

[mini4wd]

Ya ok well Im trying out my 2s but I want a little more power so im getting 3s 5000 mah 30c gens ace

[evan03]

I had a few g3 batts and turnigies just in my opinion.

The golden rule is to never burn more then 80% of the batteries capacity.

Over discharge is the number killer of lipos

[mini4wd]

Originally Posted by evan03

I had a few g3 batts and turnigies just in my opinion.

The golden rule is to never burn more then 80% of the batteries capacity.

Over discharge is the number killer of lipos

On like the traxxas vxl will the low voltage cut off stop the discharge at a good point? Or should it never reach low voltage cut off

[M1tch]

I run relatively small 3s 1300mah, cheap 20C versions tended to puff in my old foff, but not in my crawler. Nano techs at 50C don't puff, but get warm.

New foff has 4s 2200mah 90C. Only a couple of shakedown runs (then repairs), but they dont get warm at all

I set the cutoff voltage at 3.2 on the foff to protect the batteries, but on the 1/8 buggy i raced i would set it to 3.0 volts just to get more run time.

[evan03]

i have my low voltage cut off set at 3.5 if i run to the cut off im putting back between 1500-1700 of a 2200 pack. i think this is about perfect. sometimes with lvc set high like i have i can hit it even at mid charged pack due to voltage sag under load.

i run 40c 2200 4s turnigys and i they run cool i have had some 20c discharge puff and get warm but i quite buying batteries less then 30c and i try and stay with 40c for the power and cool running and they also often have 5c charge rateing wich means i an feed them a faster charge of 11 amps. though i normaly charge them at 7 or 8 depending on my mood. my charger is only a 10 amp charger but these fast charge batteries are about 12-15 minute charge time depending on amount of capacity burned.

when i started flying helicopters i was burning through lipos faster then my nitro bird burn fuel

[mini4wd]

Can you change the lvc on the vxl system?

[M1tch]

I dont think you can change the voltage cut off, only change whether LVC is on or off.


How to program, set voltage cutoff, for Traxxas Velineon - YouTube

[evan03]

i think the vxl is caslte controler. if so its adjustabl via castle link.

[Hacksaw707]

Originally Posted by evan03

i think the vxl is caslte controler. if so its adjustabl via castle link.

Nope.