Hello I see there are a few people here ruining parallel 3 s packs. I have a question. At the moment i am running 1 pack the Turnigy Graphene green 5000mah, the single pack calabrates at around 1600. If i put two packs together in parallel i get overcurrent. Which to me makes sense because if one is able to deliver 1600 then 2 in parallel are able to deliver 3200.
So how are you guys able to run 2 packs in parallel without overcurrent ?.
As i said above i am using Turnigy Graphene Panther 5000 mah 75c packs.
The kweld unit is stock leads and battery leads are stock. I am Using 7 mm bullet connectors to attach the battery to the kweld battery leads and have added . 0.2 to the cable length in settings to allow for the leads that come from the battery its self. So 1.2 meters total.
Each time i try packs in parallel i get over current.
I have bought a server psu and 2 kcap which I will connect in parallel. How does kweld want me to calculate cable length? Should I include all the cable in the calculation or only from 1 kcap?
just the length of one set of kcap<->kweld connection cables, as they are in parallel. if you use the stock ones and also the stock probe leads, then you can keep the 2m default in the settings. calibration current will be close to 2000A, if you exceed that then you can reduce capacitor voltage.
The total cable length was at least 1.6 meters. I had to go down to 6.5 volts before kweld stopped complaining about overcurrent. Then the values were as follows:
2.52mR
78.8 Std
1486 A
I don’t know what to do to get a higher calibration value on the amperage.
I can trick kweld and say I have 1 meter of cable then I get a high value. But it doesn’t feel right?
Have you read the operations manual? kWeld-operation-manual-r3.0 (1).pdf (1.7 MB)
If you want higher welding output and performance without damaging your welder then you need to shorten your cable lengths, probably to 1m. If you trick your kweld into calibrating by inputting false cable length values it will not last long, the operations manual explains why.
Also 6 gauge over 8 gauge doesnt reduce the inductance, so it wouldnt change your cable lengrh value.
that’s my plan! the new watercooled electrodes will be compatible with kWeld1. regarding the pro, I got fully dragged away from this for quite a while. My main activity is engineering service and we were doing multiple new product developments and launches for them. First units going to the warehouse just now, and I expect to have more time for my own projects again, starting January. It’s a pity, since 20 prototype units are sitting here, in parts, collecting dust, for months how.
Unfortunate, but we ofcourse also have jobs and other stuff apart from our hobbies
I can’t wait to upgrade my kWeld to the new probes though, it’s kind of the achilles heel of the spot welder
edit: apart from not really being able to do pure copper (ps, i wish i could) but nickel and even nps will do the trick then, just to get good spotwelds
I have two I stupidly managed to short. If u fix one u can keep the other.
One has an obvious burn on the bottom and the other has no signs of damage other than it won’t go on
(( ugh I tried soldering the lost trace n smoked the plug n that didn’t work. ))
The USA seller says they’re generally pretty repairable if u know what ur doing.
.
