21700 downtube case options

Vw2bugyou

1 mW
Joined
Dec 3, 2020
Messages
13
Location
Oregon
I'm building a ( 20s3p ) 72v li-ion pack with 21700 cells. I'd like to use a downtube case. Some listings note that 18650 or 21700 can be used but those give a max capacity of 52 or 54 21700s. Some cases are built 95mm wide specifically for the bigger cells but those don't have a big enough count either.
Has anyone tried to fit 21700s in a polly dp9 case or a hailong max or jumbo shark?
 
I don't think I've ever been more anxious for someone I've never met to receive their package. Thanks!
 
I am also planning to build my next battery pack with 21700 and downtube case. Besides the case, please also share your experience in reliable 21700 sources.
 
Did you find a polly style case that fits more then 52 x 21700 cells? I'd like to build a 13s5p pack.
 
Guys, check the Reention DP-7: 70cells, 21700, without controller in baseplate (DP-xxC version)

10S7P (0), 13S5P (5), 14S5P (0), 16S4P (6), 20S3P (10)

There are no product images yet, therefore they used the DP-5C images. I just placed an order for 6 cases as well😅
  • https://aliexpress.com/item/1005003587652870.html
  • https://aliexpress.com/item/1005003790391198.html
  • https://aliexpress.com/item/1005003782503830.html
You can also order directly from Reention.

Reention confirmed this case:

 
Back
Top