do you use this term for motors mounted diagonally on a single truck as well?
or only when itās mounted diagonally one on the front truck one on the back truck?
is there a differentiating way of talking about the two?
1 Like
Chartās wrong. Not all li-ion chemistry is the same.
1 Like
Good question. Think most people think of 2 separate trucks but I guess thereās not technical terms for both.
1 Like
could I use normal silicone(i. e. for the bathtub) for sticking cells together?(Have tons of this stuff 
)
Is it neutral cure
2 Likes
Hey guys looking for an opinion on two builds Iām gonna be working on.
I have two battery packs and was wondering which pack would be most beneficial for each setup. I think I have an idea but figured Iād throw it on here to get more opinions.
The two battery packs are both 21700 30T. One is a 12s6p the other 12s4p.
Both the builds will be AWD as well.
The first is what I currently have setup 4 90kV TB DD motors.
The second will be 3Dservisas gear drives with urethane. The gear ratio is gonna be 1:2.25. With 4 210kv 6396 motors.
I think the motors on the DD and the 6396 are similar in size not sure tho. I was leaning towards the larger pack for the gear drive setup but was wondering if that sounds good?
Thanks a lot.
1 Like
nope.
Then itās not recommended
Probably contains acetoxy
4 Likes
It smellsā¦
1 Like
have i been spoiled with international shipping? i want to risk my life with a flipsky anti-spark switch and shipping is $23 on a $49 part. Does this track with otherās experience?
i tried my local address as well as addresses on the US mainland and pricing is consistent.
is shipping fee part of their revenue model?
1 Like
They ship DHL which arrives within a week, much faster than the usual china international shipping via tracked mail that can be 2 weeks to a month. They use to have 2 shipping options but recently I noticed they only give option for DHL. I think because the cheaper option is not available due to the virus.
6396 motors will be cooler at the same amps because of the higher kv winding. Your intuition is correct, put the beefier battery on the gear drive build 
2 Likes
Thankssss appreciate the technical/scientific reasoning. I had a feeling it had something to do with efficiency but wasnāt completely sure.
I mean, on the other hand, maybe the gear drives running cooler will be more efficient, so you want the battery with larger range on the direct drive. Or it could go the other way round. Youāll have to find out for yourself 
2 Likes
thanks for the quick reply. i am accustomed to āfastā shipping to my local being 1+ week. iāll give it a beat for the virus to calm down and see if the other shipping options become available before disappointing my internal frugal tendencies.
I donāt think it matters ultimately. Think just depends on which board you want a bit more range. The bigger battery would see more efficiency on the gear drive. Direct drive is almost always going to lose more heat, but it really doesnāt make a whole lot of difference at the end of the day.
1 Like
Not too worried about range honestly. Since it doesnāt matter too much I guess since the rest of the setup internally will be the same I guess I just will have to decide whether to put the gear drives on the evo falcon deck and the DDs on the subsonic century deck or vice versa. I suppose thatās not a bad problem to have.
When using a buck converter to step down battery voltage to your lights, is the amp draw solely set by the lights circuitry?
I.e. You canāt alter the amps going into the lights without altering voltage? Resistance would be constant but I could be being stupidā¦
1 Like
It follows the inverse ratio of the voltagesā¦ Loosely 
E.g. 5v 1a lights will draw 0.5a at 10vā¦ Ish
1 Like
What lights are we talking about? LEDs? Those are ideally driven by CC-CV. Both current AND voltage regulated. Normally LEDs are provided with a drive range (say, 4-6v @ 2A), which means you can feed current at 2A and have a range of voltage to work with. LED resistance is NOT consistent, so you cannot rely on CV only to calculate amperage. However a lot of LED chips have integrated drivers, like the popular 5050 RGB chip. Thus your question varies case by case.
Remember LEDs are just diodes, so you need to think about forward voltage drop etc, which is why voltage control alone will often underdrive or overdrive chips.
I should also mention that dimming LEDs steps down amperage, not voltage. Done by PWM, which is why LEDs appear to flicker in cameras often.
1 Like