tag:blogger.com,1999:blog-1406088964942152547.post2257664511674114720..comments2024-03-28T21:31:47.191-04:00Comments on The Abode of McThag: Battery Life.Angus McThaghttp://www.blogger.com/profile/09295013525738248801noreply@blogger.comBlogger7125tag:blogger.com,1999:blog-1406088964942152547.post-72991126929004530582019-07-19T08:01:43.553-04:002019-07-19T08:01:43.553-04:00They're RGB LED. Marv says if all three are ru...They're RGB LED. Marv says if all three are running at full bright (white) then they pull 20mA each.<br /><br />5,160mA draw! 19 minutes at full blast with the six 14500's running at advertised capacity.<br /><br />He also mentioned some Russian saber builder who keeps quoting 40% of that draw for other colors and being dimmer, 2,064mA at 40%. Almost 49 minutes of play time with the six 14500's!<br /><br />Even if I am stuck with the 500mAh ones, should still be half an hour of goofing off in them.Angus McThaghttps://www.blogger.com/profile/09295013525738248801noreply@blogger.comtag:blogger.com,1999:blog-1406088964942152547.post-6556632971240556072019-07-19T07:49:22.454-04:002019-07-19T07:49:22.454-04:00Correction 3.87 Amps, I am dyslexic until coffee k...Correction 3.87 Amps, I am dyslexic until coffee kicks in.Terrapodhttps://www.blogger.com/profile/01502747070873520107noreply@blogger.comtag:blogger.com,1999:blog-1406088964942152547.post-91605280464359794262019-07-19T07:47:43.373-04:002019-07-19T07:47:43.373-04:00I cannot. That's Marv's side of this proj...I cannot. That's Marv's side of this project with his tasty chess club brain and electrical engineering degree.Angus McThaghttps://www.blogger.com/profile/09295013525738248801noreply@blogger.comtag:blogger.com,1999:blog-1406088964942152547.post-9679737072137417112019-07-19T07:47:24.742-04:002019-07-19T07:47:24.742-04:00Angus, if you are using common LED's (not high...Angus, if you are using common LED's (not high power) then you can assume around 15milliamps per led in power consumption. Then 258 LED will consume 3.78 Amperes per hour. This is back of the envelope as I am going by old data, have no clue if modern low power LED consume less power that they used to when I was designing stuff back in the 80's. So I will guess you get about 1 hour continuous use worse case and maybe 1.5 hours best case.Terrapodhttps://www.blogger.com/profile/01502747070873520107noreply@blogger.comtag:blogger.com,1999:blog-1406088964942152547.post-59665000157540512432019-07-19T07:46:49.213-04:002019-07-19T07:46:49.213-04:00Panasonic 14500's are said to have a reliable ...Panasonic 14500's are said to have a reliable 840mAh. Six of them, two packs of three, should add up to 1,680 mAh at 11.1v.<br /><br />I've got several that run my little Cree flashlight which might have 600 mAh, and have 2,000 mAh printed on the side.<br /><br />The Panasonic brand batts are also expensive. $4 each or so.Angus McThaghttps://www.blogger.com/profile/09295013525738248801noreply@blogger.comtag:blogger.com,1999:blog-1406088964942152547.post-55399373014767959702019-07-19T02:32:33.047-04:002019-07-19T02:32:33.047-04:00Also where are you finding 14500 with an actual ca...Also where are you finding 14500 with an actual capacity above 900mAh?Ratushttps://www.blogger.com/profile/02546867391478669489noreply@blogger.comtag:blogger.com,1999:blog-1406088964942152547.post-16184065676069736612019-07-19T02:30:43.042-04:002019-07-19T02:30:43.042-04:00What you can't put a boost circuit into it.What you can't put a boost circuit into it.Ratushttps://www.blogger.com/profile/02546867391478669489noreply@blogger.com