{"id":20,"date":"2011-05-22T10:36:01","date_gmt":"2011-05-22T10:36:01","guid":{"rendered":"http:\/\/goodenoughforjesus.com\/?p=20"},"modified":"2018-01-20T22:28:30","modified_gmt":"2018-01-20T22:28:30","slug":"high-performance-18650-battery-options-and-choices","status":"publish","type":"post","link":"http:\/\/goodenoughforjesus.com\/?p=20","title":{"rendered":"high performance 18650 battery options and choices"},"content":{"rendered":"

good numbers here:
\nhttp:\/\/www.candlepowerforums.com\/vb\/showthread.php?308451-18650-battery-test-with-capacity-curves-for-many-cells<\/a><\/span><\/p>\n

the graphs are a\u00a0real bitch<\/em> to read, there are so many lines with similar shades… I ended up using the eye-dropper tool in photoshop to nail things down. \u00a0I think that’s because he’s using the software that came with his CBA instead of a separate graphing package.<\/div>\n
<\/div>\n
Looks like the “black\/fire” trustfires are the ones to get among cheap cells. \u00a0You gotta spend a lot (~4x as much) to get better cells than that. \u00a0Right now I’m looking to put a 3A load on some 18650’s, so the TF “fire” ones are the only cheap option I think I have…<\/div>\n
and 3A is clearly a stretch while trying to maintain 3.35v+<\/div>\n

Digging deeper, here is an\u00a0older 18650 roundup by the same guy:
\nhttp:\/\/www.candlepowerforums.com\/vb\/showthread.php?257543-LiIon-18650-battery-comparison&highlight=18650<\/a><\/p>\n

This one has actual 3A discharge curves, very useful to me!<\/div>\n
<\/div>\n
It looks like the “black\/fire” cells from trustfire hold their voltage under a 3A load\u00a0as well as anybody else in the roundup<\/em> to me. \u00a0they hold 3.4v all they way up to the 900mAh discharge mark. \u00a0They hold 3.2v foralmost<\/em> as long as AW’s 2600mAh cells, but at about 1\/3 the price!\u00a0(and that’s before AW’s $4.50 shipping charge…)\u00a0http:\/\/www.cpfmarketplace.com\/mp\/showthread.php?200812-AW-s-LiIon-Batteries-Sales-Thread-*Part-11*<\/a><\/div>\n
<\/div>\n
For those looking to drive older (or dedicated thrower) Cree XR-E based flashlights,\u00a0\u00a0we can assume you need a vF in the 3.5-3.7v range if your XR-E emitter is driven @ 1Amp. \u00a0More, depending on what the losses in the driver are. \u00a0Looks like the spread is about the same, actually. \u00a0I’d say that AW’s 2600mAh cells are\u00a0noticeably<\/em> better than the “fire” trustfires when you look at the 1A discharge (red line in graphs)… but again, 3x as expensive as the trustfires:<\/div>\n
TrustFire Protected 18650 3.7V True 2400mAh Rechargeable Lithium Batteries (2-Pack)<\/a><\/div>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

good numbers here: http:\/\/www.candlepowerforums.com\/vb\/showthread.php?308451-18650-battery-test-with-capacity-curves-for-many-cells the graphs are a\u00a0real bitch to read, there are so many lines with similar shades… I ended up using the eye-dropper tool in photoshop to nail things down. \u00a0I think that’s because he’s using the software … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[3],"tags":[],"class_list":["post-20","post","type-post","status-publish","format-standard","hentry","category-flashlights"],"_links":{"self":[{"href":"http:\/\/goodenoughforjesus.com\/index.php?rest_route=\/wp\/v2\/posts\/20","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/goodenoughforjesus.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/goodenoughforjesus.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/goodenoughforjesus.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/goodenoughforjesus.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=20"}],"version-history":[{"count":3,"href":"http:\/\/goodenoughforjesus.com\/index.php?rest_route=\/wp\/v2\/posts\/20\/revisions"}],"predecessor-version":[{"id":22,"href":"http:\/\/goodenoughforjesus.com\/index.php?rest_route=\/wp\/v2\/posts\/20\/revisions\/22"}],"wp:attachment":[{"href":"http:\/\/goodenoughforjesus.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=20"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/goodenoughforjesus.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=20"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/goodenoughforjesus.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=20"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}