DIY vs Premade 52v 15-20ah cost comparison & no weld options 2020?

[drifta303]

Hello,

Can someone give me a heads up on the cost comparison between DIY and Pre-made battery packs? From what I can tell there are the following costs:

Cells
Nickel-Strip/connectors
BMS
Shrinkwrap/Tape

Can someone give me a rough outline of your own costs? based on my own research if there could be a big cost saving buying the cells in bulk and diy building the pack.

And are there any good no-weld options still available in 2020? looks like the vruzend ones are out of stock.

I'm looking at either bbs02 .. 14s4p or 14s5p or 14s6p.

 

[AngryBob]

The comparison is between non-replaceable cells and replaceable, components you personally pick and verify or unknown parts, features you want and features you can find offered by someone else.

The Vruzend kit is extremely limited in usability and function.

The kit made by Agniusm is much better engineered, very well tested, but have not seen much in user reports here, though his previous kit for pouch cells was reported to work well. Unlike the Vruzend kit, whacking it repeatedly with a large wooden mallet is not part of the recommended assembly procedure.

Total cost will be similar or even higher, until you replace all the cells the first time. Also consider if you can't get quite what you want in a commercial offering.

There is also being able to individually replace one or a few bad or damaged cells easily.

 

[goatman]

im playing with magnets right now, what kind of amps?

https://endless-sphere.com/forums/viewtopic.php?f=14&t=106190&start=75#p1563914

 

[agniusm]

Hello,

Can someone give me a heads up on the cost comparison between DIY and Pre-made battery packs? From what I can tell there are the following costs:

Cells
Nickel-Strip/connectors
BMS
Shrinkwrap/Tape

Can someone give me a rough outline of your own costs? based on my own research if there could be a big cost saving buying the cells in bulk and diy building the pack.

And are there any good no-weld options still available in 2020? looks like the vruzend ones are out of stock.

I'm looking at either bbs02 .. 14s4p or 14s5p or 14s6p.

I did price comparison some time(maybe 2 years ) ago:
Ebikes.ca:
Ligo 36V 2.7AH - 144 (36V 16.2AH - 864usd)
36V 19AH - 695
36V 14AH - 425
Luna Cycles
36V 24.5AH - 635usd
36V 17.5AH - 425usd
36V 25AH - 500usd
em3ev
36V 17AH - 439usd
36V 10.5AH - 349usd
36V 12.6AH - 389usd

N.E.S.E battery
36V 17AH
NESE hardware - 80.38eur
NESE enclosures - 60eur
Panasonic NCR18650PF x 60 - 174eur (Legit cells from official dealer, nkon.nl)
TOTAL : 365USD(314.38EUR)
Also, if spotwelding, account for time and spotwelder(270€ for decent one).
I have compared reputable brand batteries. If you go cheap china stuff you get what you pay for. Plated steel and not nickel, cells that are of questionable quality and poor build quality.

 

[999zip999]

52 volt 16ah *HIGH OUTPUT* Battery Pack - Built With Samsung 40T cells. I found this on eBay.
Bicycle motor works

 

[999zip999]

Plus I like the N.E.S.E kits
and where do you live where do you think you buying your new quality batteries from