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2016-01-17 16:02 <qi-bot> [commit] Werner Almesberger: components/tvs8.lib: 8 x diode TVS (master) http://qi-hw.com/p/kicad-libs/2b82724
2016-01-17 16:02 <qi-bot> [commit] Werner Almesberger: xxx (master) http://qi-hw.com/p/kicad-libs/370243c
2016-01-17 16:02 <qi-bot> [commit] Werner Almesberger: components/README: add HIERARCHY step (master) http://qi-hw.com/p/kicad-libs/e720f09
2016-01-17 16:02 <qi-bot> [commit] Werner Almesberger: modules/dfn.fpd: add DFN-8-0.4mm (master) http://qi-hw.com/p/kicad-libs/b8cf942
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2016-01-17 17:11 <arossdotme-planb> re my 15A fused amp. with it in briged mode so instead of 4x45w its doing 2x90w into 100w 8ohm speakers. playing some music it was on average comsuming below 4A (3.6) but maxed out more and with strongy bassy music it was hovering around 4,5,6A. i think the 15A fuse is so the fuse doesnt blow duing little high peaks but i think(?) if i used 4ohm speakers it would have consumed more amps then. so i believe a 10c s4 (14.8v) batt
2016-01-17 17:11 <arossdotme-planb> would do for this amp. unless i need to leave more head room.... hmm
2016-01-17 17:40 <arossdotme-planb> my bad the C (discharge) rating is $discharge_rating * $mAH_number
2016-01-17 17:42 <arossdotme-planb> so with a 10C 16AH pack thats plenty of an discharge rating :D. boy RC stuff needs lots of amps when they using 50C + 10Aetc packs
2016-01-17 21:02 <roh> dont use rc stuff. bad quality regardless of vendor and shitty quality.
2016-01-17 21:02 <roh> also wears down fast. not compareable with any sane battery technology.
2016-01-17 21:03 <roh> this stuff is built for single-digit charge/discharge cycles and no proper safetey. nothing one could compare with stuff on the level of car-batteries or whats in your computer
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2016-01-17 22:30 <arossdotme-planb> roh, oh no arrrrrrrrrrrrrrrr
2016-01-17 22:30 <arossdotme-planb> back to square one
2016-01-17 22:31 <arossdotme-planb> not even if i dont over discharge them but only dischage them to 3.5v so they last longer?
2016-01-17 22:34 <arossdotme-planb> roh,  are lower discharge rate, designed for high mAH rc batts. not any better than rc batts designed for high discharge rate over mAH?
2016-01-17 22:37 <arossdotme-planb> im really better off getting 18650 cells are manually wiring them up to a 4s4p pack? hopping that the cells are from the same batch, etc?
2016-01-17 22:37 <arossdotme-planb> are=and
2016-01-17 22:38 <whitequark> don't hope, use protected cells
2016-01-17 22:38 <whitequark> your house, which will not get on fire, will thank you
2016-01-17 22:38 <whitequark> ask DocScrutinizer51 about not using protected li-ion cells :p
2016-01-17 22:38 <DocScrutinizer05> hmm?
2016-01-17 22:38 <DocScrutinizer05> :-D
2016-01-17 22:39 <DocScrutinizer05> http://www.candlepowerforums.com/vb/showthread.php?262234-TK-Monster-Explosion
2016-01-17 22:39 <whitequark> or alternatively use LiFePO4, these are mre expensive and lower capacity
2016-01-17 22:39 <whitequark> but they do not have the runaway reaction
2016-01-17 22:39 <whitequark> they *do* catch fire but you have to try pretty hard. LiFePO4 doesn't even have any restrictions for bringing them on airplanes
2016-01-17 22:40 <whitequark> like NiMH, NiCd and others don't
2016-01-17 22:42 <roh> arossdotme-planb: rc stuff is not built for reliability or normal (high) charge/discharge cycles afaik.
2016-01-17 22:44 <arossdotme-planb> arr dam it
2016-01-17 22:46 <arossdotme-planb> i know about fire risks. but proving i stay within the safe voltage rang i should be ok. oh and add a good about of drop protechion so the rc pack cells dont get damaged as ive read thats a problem. something not too insulating get will protect.. hmm a wrap of something or a box with foam tails to sandwich the batt in the box ?
2016-01-17 22:48 <arossdotme-planb> i thought it would be safer then the risk of the batts not matching in a diy pack. to buy a pack already made up. not built for reliability of dis/charge cycles would be a big problem :|
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2016-01-17 22:49 <arossdotme-planb> what about the novena laptop? that used rc packs?
2016-01-17 22:51 <arossdotme-planb> phone batts come in a metel casing? jugging by this picture http://www.instructables.com/id/Make-A-Cheap-Lithium-Battery-Pack/
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2016-01-17 22:54 <arossdotme-planb> the comments in that article are interesting about panevilonic scam with plasm screens
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2016-01-17 23:12 <DocScrutinizer05> all batteries have a metal case. That's system immanent since the cell needs two metallic anodes
2016-01-17 23:12 <DocScrutinizer05> even LiPo have a 'metallic' outer 'case', though often made of thin metal foil
2016-01-17 23:14 <whitequark> that's true but I don't understand what are you responding to
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2016-01-17 23:30 <DocScrutinizer05> whitequark: hm?  >><arossdotme-planb> phone batts come in a metel casing?<<
2016-01-17 23:30 <whitequark> ahh
2016-01-17 23:30 <arossdotme-planb> DocScrutinizer05, sry i meant a thick metel case that could take a few knocks
2016-01-17 23:30 <DocScrutinizer05> depends, most do
2016-01-17 23:30 <DocScrutinizer05> LiPo rarely do however
2016-01-17 23:31 <arossdotme-planb> wheres if a foil pouchs of big rc packs get damaged/crushed when dropped
2016-01-17 23:31 <DocScrutinizer05> please rephrase
2016-01-17 23:31 <arossdotme-planb> *wheres when no if
2016-01-17 23:32 <DocScrutinizer05> o.O .oO(???)
2016-01-17 23:32 <arossdotme-planb> unlike a foil pouch of big rc packs. they get damaged/crushed when dropped
2016-01-17 23:32 <arossdotme-planb> they, meaning the foil pouches
2016-01-17 23:32 <DocScrutinizer05> foil pouch means LiPo. LiPo are a tiny bit "flexible"
2016-01-17 23:33 <arossdotme-planb> yea
2016-01-17 23:34 <arossdotme-planb> polymer because they are made using plastic wrap instead of hard casing in-between the layers
2016-01-17 23:34 <arossdotme-planb> ot:nice laptop case http://makezine.com/2016/01/15/electronics-that-last-how-i-built-an-heirloom-laptop/
2016-01-17 23:35 <DocScrutinizer05> >>Originally, "lithium polymer" represented a developing technology using a polymer electrolyte instead of the more common liquid electrolyte. The result is a "plastic" cell, which theoretically could be thin, flexible, and manufactured in different shapes, without risk of electrolyte leakage.<< https://en.wikipedia.org/wiki/Lithium_polymer_battery
2016-01-17 23:36 <DocScrutinizer05> >>The second meaning appeared after some manufacturers applied the "polymer" designation to lithium-ion cells contained in a non-rigid pouch format. <<
2016-01-17 23:38 <DocScrutinizer05> really WTF!  https://en.wikipedia.org/wiki/Lithium_polymer_battery#Lithium_cells_with_true_polymer_electrolyte
2016-01-17 23:41 * DocScrutinizer05 wasn't aware idiots another time corrupted and perverted a perfectly clear and precise term
2016-01-17 23:42 <DocScrutinizer05> other instances: "flat rate", "non deadly weapon", "peace mission"...
2016-01-17 23:43 <DocScrutinizer05> "republic"
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2016-01-17 23:50 <arossdotme-planb> urrgh annoying that it means 2 things