Noob question thread! 😀 ask your questions here!

Skunk · March 12, 2019, 9:28pm

Ian-mountainboard · March 13, 2019, 4:54am

Is it a bad idea to short a car battery with a solonoid and a momentary switch to be used as a spot welder?

ZachTetra · March 13, 2019, 5:03am

Legend has it the answer is yes, a car battery will put out like 1000 amps if its warm so you’ll need a beefy solenoid and a pulse of like 1 ms

ZachTetra · March 13, 2019, 5:07am

Put some metal rods in the box near the outside of the package so the board can’t get bent…or make a wood frame to put it in

It’ll cost more because weight but they can’t crack it in half or crush the parts

ZachTetra · March 13, 2019, 6:30am

Shameless self promotion of a Chinese Company by an account made 25 minutes ago?

MysticalDork · March 13, 2019, 7:06am

seems legit.

dareno · March 13, 2019, 8:34am

This is not the place to advertise. We let this go and it will be bedlam. Not appropriate.

Rant over.

Venom121212 · March 13, 2019, 11:23am

Just gonna go ahead and subscribe their email address everywhere I can

ryansinatra · March 13, 2019, 3:31pm

IMG_20190313_113048

Charging port. Which one is positive terminal and which one is negative?

yelnats8j · March 13, 2019, 3:36pm

Plug the charger in and use a volt meter to check it.

ryansinatra · March 13, 2019, 3:43pm

Good call, thank you.

xsynatic · March 13, 2019, 5:24pm

I have 2x 6s 12000mAh batterys [Lipo]. Constant discharge 12c and max discharge 24c.

I connected them in series and rode 20km.

If i plug one of the batteries into my charger it says ~26%. But if i connect my new batterymeter it says 53%. Shouldn’t all be either 26% or 53%? [The Image of the charger charged for a bit so its not 26% anymore]

. IMG_20190313_181837~2-01 IMG_20190313_181905-01

Octave · March 13, 2019, 5:39pm

Where both batteries new when you first created the board?

xsynatic · March 13, 2019, 5:51pm

Yes. I bought them from hobbyking.

Sn4Pz · March 13, 2019, 6:01pm

Devilish… There’s a website for that you know http://www.mailbait.info

Venom121212 · March 13, 2019, 6:03pm

I know now

Sn4Pz · March 13, 2019, 6:04pm

I filled my teachers email after he gave me a grade I didn’t deserve… Always funny to see his blownup inbox on the projector

I mean what I’m a good kid.

JONK · March 13, 2019, 8:50pm

I’m new here, so hi to all !

My problematic setup: I have 3x3(9S) LiPo Batteries (Zippy 40C 6,2A) and a 10s bms bypassed for charge only. My BMS starts with B- and then B1 up to B10. This is my BMS: www.amazon.de/dp/B07CMB83RN/ref=psdc_1626845031_t4_B07G2CSMHD I didn’t connect B10 as I have 9 cells. My Batteries have 4 Balancing wires for negative,Cell 1 to 2, Cell 2 to 3 and positive. VESC 4.12 and 230kv 3KW 6374 motor by the way

Now my question: Which of the balancing wires shouldn’t I connect to the BMS ? is it the positive or the negative wire from the Batteries. Where do I start ? This confuses me as there are posts which say different things. ?

Second question: Am I able to use Regenerative Braking with the bypassed BMS without destroying my Batteries, because I could potentially overcharge single cells while breaking downhill ?

Thanks in advance !

Arek · March 13, 2019, 10:03pm

Fusion 360 got updated and now objects after extrusion look like that: f360 When I even try to change appearance nothing happens. What’s going on? I can’t work on something like that…

briman05 · March 14, 2019, 3:48am

You should not use a 10s bms for a 9s pack it is made for a 10s battery so you need a 10s battery.