Truggy & buggy same batts?

[superek4]

I am using 6s 3000 for truggy. My truggy is running Neu 1515/3d 1350kv. My buggy is using 2050kv neu & 4s 5000mah. I was thinking to switch to tekin 1550kv & 6s 3000mah batt?

I know more volt is good. But my races are 7-8mins only.

Using 6s 3000Mah can save cost also as both my cars can use the same batt.

btw 6s 3000 is 585g the weight of 4s 5000mah is 610g

4s 3000mah is 415g

so I m deciding weight vs volt & cost saving.

What you guys think?

[superek4]

Problem is 6s 3000 may not fit my buggy height is 41mm vs 33mm(4s 3000mah)

[superek4]

Err no one?

[coolhandcountry]

If the amperage is good on the batts I would say

[superek4]

For a 7-8min race with a 220-250amp draw per min should be enough. I calculated I should leave abt 1000mah.

That's for the 6s 3000mah. Will this overdrain the cells & cause them to bloat faster?

[nativepaul]

6s 3000mAh should work fine if you want to go that way, but if you just want to shed some weight, the 4s pack you have is very heavy, I race boats and the 4s Naviga classes have a 560g weight limit for batterys inc connectors and its not hard to find 4s 5000mAh packs of under 560g.

[bdebde]

Should be no problem with high disharge rate lipos. I run 2600 6s 30c in my buggy (Neu 1509 1450kv), 7 min. qualifiers and 10 min. main with no problems, uses less than 200mah/min. on a small track.

[superek4]

I was thinking 6s 2650mah@40c vs 6s 3000mah@40c becoz of the height diff between 36mm vs 41mm.

Small track draw less amps vs big track? Is it becoz less full throttle? How long can your 6s 2600 Mah batt last you? 12-15mins? Wats was the per cell voltage remaining?

[BrianG]

Since he's using 2600mAh cells and comsumes about 200mAh/min, he can run around 13 minutes.

[superek4]

Originally Posted by BrianG

Since he's using 2600mAh cells and comsumes about 200mAh/min, he can run around 13 minutes.

Yes u taught me how to calculate :). But what will be the voltage per cell after 13mins? 3.7v or lower?

I remembered mine after 10mins is 3.8v per cell.

[BrianG]

It will probably be around LVC, which most people set for ~3.2v/cell. After a few minutes, the unloaded voltage tends to drift back to around 3.5-3.6v/cell.

[lincpimp]

Originally Posted by BrianG

Since he's using 2600mAh cells and comsumes about 200mAh/min, he can run around 13 minutes.

Ahhh upper level math alert!!!! You must have a doctorate in Mathmatics to be able to even have the confidence to tackle such difficult equations...

So let me et this straight, 2600/200=13?

[superek4]

Will the cells get stress out around LVC? Like bloat faster?

[BrianG]

Not if you set the LVC right, that's its purpose.

[superek4]

Thx man got it