Search found 155 matches

by bobmutch
Dec 02 2019 5:29pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 970
Views: 117004

Re: kWeld - "Next level" DIY battery spot welder

20 Joules is 20 Joules regardless of battery voltage and welding amps because time is the deciding factor. As the battery voltage/current decrease, to get 20 joules it will simply increase weld time for instance from 10ms to 13ms. You can observe this by keeping the pedal pressed after a weld until...
by bobmutch
Dec 02 2019 5:05pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 970
Views: 117004

Re: kWeld - "Next level" DIY battery spot welder

I believe the answer is no: Yo must re calibrate, Bob. Whenever a ( different) battery is swapped the calibration is carried out. This tells the machine the circuit resistance, and is different between batteries. I think, perhaps another here can confirm. I know you have to re-calibrate with each d...
by bobmutch
Nov 16 2019 10:43pm
Forum: Battery Technology
Topic: kWeld - "Next level" DIY battery spot welder
Replies: 970
Views: 117004

Re: kWeld - "Next level" DIY battery spot welder

tatus1969 A couple questions to tatus1969: 1. With the kweld the adjustment for different welds is in energy J. I'm just wondering if there will be a difference in the weld energy used in each weld when your battery is fully charged and when the battery is close to the LVC? or will the setting of 2...
by bobmutch
Nov 08 2019 1:02am
Forum: E-Scooter and Motorcycle Photos & Videos
Topic: My Chinese Ebay Build
Replies: 158
Views: 28892

Re: My Chinese Ebay Build

beautiful build, you did a really good job!
by bobmutch
Nov 07 2019 11:19pm
Forum: Items for Sale - Used
Topic: Stromer ST1 For Parts / Repair
Replies: 2
Views: 515

Re: Stromer ST1 For Parts / Repair

FiberOptic wrote:
Sep 30 2019 10:00am
can buy frame only no fork - for 300$.
shipping to Florida\ask me .

This unit has been sold. I think I bought it.
by bobmutch
May 18 2019 10:32pm
Forum: Items for Sale - Used
Topic: Sold
Replies: 3
Views: 524

Re: BBSHD 100mm DP C18 EU 400€

How much is shipping to Canada N5H 3G4?
by bobmutch
May 08 2019 12:20pm
Forum: Battery Technology
Topic: soldering vs spot welding debate
Replies: 75
Views: 14958

Re: soldering vs spot welding debate

3 second solder job 3-sec-soldering-18650.png Should do one one weld at a time as you go down the line and then come back and do the 2nd weld then come back do the 3rd weld. 3 welds-1-sec-18650.png The worse I could find on the video another-3-welds-1-sec.png Like this, one weld at a time. 1-weld-18...
by bobmutch
May 05 2019 8:03pm
Forum: E-Bike Reviews & Testing
Topic: Grin Phase Runner / CA3 and BBSHD
Replies: 162
Views: 32410

Re: Grin Phase Runner / CA3 and BBSHD

Update: Juttering gone after reading in another thread to turn the phaserunner to be in pure hall sensor mode. I also moved the minimum throttle voltage to where it starts humming as suggested before and the on/off seems to be much smoother. Could you post a URL to the that thread plz. I've read th...
by bobmutch
May 02 2019 10:46pm
Forum: Items for Sale - Used
Topic: kWeld - Spotwelder
Replies: 14
Views: 992

Re: kWeld - Spotwelder

where ever I fit in the queue is fine but I am offering 130EU shipping in if what is included are all the items in the €167,00 kit. I can make payment through transfer wise if that works for you?
by bobmutch
May 02 2019 5:12am
Forum: Items for Sale - Used
Topic: Stealth Bomber & Frame w/Tons of parts
Replies: 3
Views: 887

Re: Stealth Bomber & Frame w/Tons of parts

I'm interested in the 4. 96V Charger -$80, what are the specs, 96 volts nominal? how many amps, CC/CV? adjustable?
by bobmutch
May 01 2019 4:32pm
Forum: Items for Sale - Used
Topic: kWeld - Spotwelder
Replies: 14
Views: 992

Re: kWeld - Spotwelder

so looks like it is just the €167,00 kit so €37 plus taxes off.
https://www.keenlab.de/index.php/produc ... plete-kit/

How much is shipping to Canada Ontario N5H3G4?
by bobmutch
Apr 30 2019 10:06pm
Forum: Items for Sale - Used
Topic: kWeld - Spotwelder
Replies: 14
Views: 992

Re: kWeld - Spotwelder

I have been to the website keenlab.de so I don't need google. but thanks, I was asking what you paid for everything that you had, but that's fine I'm good. all the best with your sale.
by bobmutch
Apr 29 2019 10:41pm
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1736

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

serial-conections-in-wrong-place.png I don't have as much experience as you do so... but I don't think they that the current which travels serial from cell to cell is not going to take the long way around and go from the cell over to half way between the next cell in it's P=group then across the co...
by bobmutch
Apr 29 2019 10:05pm
Forum: Battery Technology
Topic: 18650 21s15p - 3 layers of 7s (balanced separately) advice
Replies: 29
Views: 1736

Re: 18650 21s15p - 3 layers of 7s (balanced separately) advice

The THICK yellow wires are the ones that carry all the current. The thin long blue one carries almost NO current. See how i did it with my pack. I just used 24mm wide 0.15 strips. Btw: The thick red main wire was soldered FIRST to the nickel strip, then the nickel strip was welded to the cells. So ...
by bobmutch
Apr 29 2019 9:40pm
Forum: Items for Sale - Used
Topic: kWeld - Spotwelder
Replies: 14
Views: 992

Re: kWeld - Spotwelder

what was the original price for everything shipping out?

Bob
by bobmutch
Apr 29 2019 9:35pm
Forum: Items for Sale - Used
Topic: 2014 Zero FX 5.7 Motorcycle. Part Out. Parts for sale. Sevcon Gen4. charger. wheel and more
Replies: 15
Views: 1082

Re: 2014 Zero FX 5.7 Motorcycle. Part Out. Parts for sale

>>>- on board charger, $100

Can you give me specs on this item please, I am interested, also do you have a 220VAC home charging solution for that bike? Or another CC/CV chargers, 0-120V 0-25A is nice.

Bob
by bobmutch
Apr 27 2019 6:03pm
Forum: Items for Sale - Used
Topic: [EU] Arduino Battery Spot Welder
Replies: 1
Views: 309

Re: [EU] Arduino Battery Spot Welder

did you get any of these options Foot Switch: to activate the welding pulse manually if you dont want to use the AutoPulse feature. ANL 300A Fuse: to protect the Spot Welder in case of a failure Case Kits (Fuse Case, Spot Welder Case) Extension Cable: needed for the fuse case XT90 adapter: if a Lipo...
by bobmutch
Apr 24 2019 4:52am
Forum: Items for Sale - Used
Topic: SOLD - 3kw DD motor on 19" moped rim
Replies: 12
Views: 1175

Re: 3kw mxus clone 19" moped - 325$

I think I could be interested in this product...

I PM you.

Bob.
by bobmutch
Mar 25 2019 4:22am
Forum: Items for Sale - New
Topic: Chargers 2500w 0-120Volt 0-20Ampere
Replies: 5
Views: 692

Re: Chargers 2500w 0-120Volt 0-20Ampere

what model is the Delta power supply? Did you modify it or did you buy them modified?

Bob
by bobmutch
Mar 14 2019 1:56am
Forum: Items for Sale - New
Topic: New Chargery 1500 24s charger
Replies: 64
Views: 7369

Re: New Chargery 1500 24s charger

maybe jason from chargery could offer one to electricgod free as a tear up and review...? LOL, electricgod already wrote a review on Chargery from an overall point of view after having 2 or 3 of their products on the bench -- and it wasn't very good. Here's the EG thread on the C4020B. https://endl...
by bobmutch
Mar 12 2019 8:17pm
Forum: Items for Sale - New
Topic: New Chargery 1500 24s charger
Replies: 64
Views: 7369

Re: New Chargery 1500 24s charger

Inwo Do you know what this unit does. I notice it only comes with the BMS16 not with the BMS16T. relay.png It seems like it is the system that provide 12V to the contractor coil circuit, and also a delay so that a pre-charge circuit can be activated first and the motor controllers caps charged so t...