18650 Cells: Difference between revisions

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=Management=
=Management=
*Multiple thousands of cycles are possible when charged to 80% and drained to 30%. - [https://electricbikereview.com/forum/threads/e-bike-battery-guide.24443/]
*While specs say 250 cycles for 15A discharge - Multiple thousands of cycles are possible when charged to 80% and drained to 30%. - [https://electricbikereview.com/forum/threads/e-bike-battery-guide.24443/]


=Cost=
=Cost=

Revision as of 22:43, 3 January 2019

https://www.google.com/search?q=18650+cells&client=ubuntu&hs=KUs&source=univ&tbm=shop&tbo=u&sa=X&ved=0ahUKEwj8xPLHwdLfAhULtIMKHTQ3ADUQsxgIKw&biw=1438&bih=738

Specs

  • Note actual spec from a buyer on Amazon - [1]

Reviews

Management

  • While specs say 250 cycles for 15A discharge - Multiple thousands of cycles are possible when charged to 80% and drained to 30%. - [2]

Cost

  • From <$1 to $7 each - so choose wisely -
  • Cheapest - [3]
  • Best - Samsung 30Q - 3000 mAh - $3 in bulk - [4]
  • These appear to be on spec at 3000 mAh - [5].
  • Cycle life and specs - [6] - 250 cycles to 70% of rated
  • 1000 cycles at 6A discharge rate bottoming at about 60% capacity for 2000 cycles? - [7]. So these last pretty long.