The battery builders club

joshoujoe · August 4, 2021, 1:43am

Hey @xsynatic this you?

for some reason I cannot install the apk

xsynatic · August 4, 2021, 1:49am

How bout this?
vbms.apk (3.0 MB)

joshoujoe · August 4, 2021, 1:52am

Nope maybe @moddedlife had better luck?

xsynatic · August 4, 2021, 1:52am

Fuck man. Tricky

drone001 · August 4, 2021, 2:02am

OK, I think I’m ready for a spot welder. Any suggestions? I hear a lot of good things about the k-weld.

Bigdaddyhawk · August 4, 2021, 2:05am

Are you doing .15 or .2

drone001 · August 4, 2021, 2:08am

I have not done any research yet so i’m not sure. I will most likley be building with p42a 12s4p to 6p no/very little flex if that helps.

Bigdaddyhawk · August 4, 2021, 2:15am

Yes research is needed. If your only building a battery or two maybe not worth the investment but kweld would have great resell value. Malelectrics V4 is cheaper and you can use a car battery and it can still do .2 nickel. Flipsky also has one for around 250 i think.

Bigdaddyhawk · August 4, 2021, 2:18am

Its on sale right now

Battery_Mooch · August 4, 2021, 2:35am

Only the LR2170SF, a couple of years ago. Good cell but larger and has secondary bottom vent (that needs to be taken into account when building a pack).

moddedlife · August 4, 2021, 3:24am

Right as it finishes it says app not installed?! I’ve never seen that before. No error or anything.

joshoujoe · August 4, 2021, 3:51am

Yeah me neither do you have an other smart bms app installed too? I do if you do too that could be it

moddedlife · August 4, 2021, 3:57am

I looked it up. Could be corrupted or it could be this. Can you try deleting your other app then see if it works? I bought the VBMS app right now from the playstore and it works well.

moddedlife · August 4, 2021, 4:23am

I’m having the same problem with the VBMS app! It’s not the apps it’s the BMS. It’s not discoverable after a while. Like it shutsdown it’s Bluetooth function. Is it the 180s timeout setting or something?

MysticalDork · August 4, 2021, 4:25am

You might have to wake the BMS by pressing the power switch? It goes into low power mode after a while

moddedlife · August 4, 2021, 4:27am

It doesn’t have a switch to press? I have to reboot it by using a cell. Surely there’s a way to change this. Worst case is I could have it connect to one of my arduinos and program it to reboot with my secondary remote.

MysticalDork · August 4, 2021, 4:33am

Mine had a little 2pin connector for a switch

joshoujoe · August 4, 2021, 4:34am

the switch is the black and red wires you use with the cell but I believe it only works as an ON switch and the OFF has to be done via the app. do you have the temp sensors on too ? maybe it could be part of the problem who knows

moddedlife · August 4, 2021, 4:34am

Do you think mine might have one and I’m not seeing it or mines different?

MysticalDork · August 4, 2021, 4:34am

Yeah, I think yours is different. I’ll send you a link to the one I have