21700 parallel battery carrier

37Blenman

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Feb 7, 2020
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Hi, im looking to make a 21700 battery carrier, the 3 batteries would be in Parallel. Tho I'm not sure how to go about it. Is there any designs out there or an example I can look at that anyone knows of, that would handle 25amp? I'm going to use it with a sbt90.2 led.

Cheers.
 

37Blenman

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Probably the best example would be “odd mods Adapters” under this subthread.

Thanks, great start for ideas. The thread is closed now so he may not be making them anymore which is a shame. They look fantastic!!
 

fivemega

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Hi, im looking to make a 21700 battery carrier, the 3 batteries would be in Parallel.

Inside diameter of these flashlight which takes 3x18650 is about 45mm
For 3x21700 you will need even larger than that. Probably ID 50mm and OD 56mm. Would it be easy to carry?
Unless it's for bicycle or....
 

37Blenman

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Feb 7, 2020
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Inside diameter of these flashlight which takes 3x18650 is about 45mm
For 3x21700 you will need even larger than that. Probably ID 50mm and OD 56mm. Would it be easy to carry?
Unless it's for bicycle or....

3 x 21700 batteries will be ok, I have some imalent lights that have 4 x 21700 batteries and I hold them fine.
 
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