Recent content by windtrader

I may resort to that but not my first choice. The concern is knowing exactly what the setting does and getting that benchmark reference so after twiddling, it can be set back to the initial setting. with only one meter and not knowing what trimpot does what, you have a good chance of missing the...

No love? someone has some idea of which pots do what. thanks

I have a generic Yarlan 16s lithium charger. This is set to 67.5 volts but I want it to charge a 15s battery. Inside there are three trimpots and from what I read one can adjust the voltage and current. Rather than trial and error the adjustments, maybe others have done this before. thanks

Sounds awesome. What us the ETA for availability and estimated pricing? So many upgraded features and capabilities - going to boost the price for sure. :)

Won't the limiting factor still be power input capacity like the current model? I could weld .02mm copper if I add capacitor or maybe a stronger battery.

Appreciate all the useful information and experiments you've done. From your posts and many others over the hundreds, it seems the practical limit of the kWeld on Cu is .1mm with the Ni tape. Maybe .15 Cu plus Ni tape. Mods are needed if reliable .2mm Cu is to be accomplished, stock kWeld is...

I got an XTAR VC8 to speed up battery condition and capacity testing. I got it on amazon for around 45 bucks. It's going back because for what it does, it costs too much. Comments 1) charges up to 8 batteries at once but limited to one amp. 2) discharge is quite slow as in hours 3) capacity...

Any update on how the XTAR VC8 worked out?

After reading the entire thread, the following battery design and build should work well. Battery 16s6p, 59.2v 28.8 Ah, 1705 watts Battery cells - Tesla 21700 3.7v 4800 mAh cell Configuration 5 packs - 3s6p 1 pack - 1s6p Tab spec 0.1mm nickel plated steel 0.1mm copper sheet Spot Welder...

I've read many posts on nickel, nickel sandwich, copper tape and find the topic very interesting but I'm asking a favor to get dialed on the workable options for this build. Thanks. 96 Lithium 3.7v 4800 mAh 2170 cells combined as follows: 5 packs = 6p X 3s = 28.8 Ah x 11.1v = 320 watts/pack 1...

My battery pack is done, bulged to the point it was scary and capacity dropped too low. Was the best pack you ran with the 15s 12p? I have a 100 li-ion cells and working on what is the optimal config of the pack.

I've followed your posts for years and am very impressed that that hub motor and setup have performed reliably for thousands of miles. I got the same motor/wheel/electrical kit and it's holding up well too. Thanks again.

I ordered a kWeld a couple weeks ago, fully paid a week ago, and crickets. Just wondering about 18650shrink. Are such delays normal? There was hint of product constraints so unclear what is the typical time from order to delivery. thanks

Thanks for the comments. FTYI - The Malelectrics bundle runs about $160 USD, so getting into the kWeld price range. https://malectrics.eu Seems like kWeld units continue being supply constrained but will go that route to be better equipped if doing a more robust pack.

Finally doing a build where building battery pack from raw cells. Over time the kWeld always had a good following and rep so just wanted to confirm this is still in the top tier of DIY spot battery welders. also, what are options for getting one, used or new? TIA