I'm familiar with the issues of various battery type tests and so on, and have resistors and meters, etc. I prefer to just buy a battery tester since these have some built-in load so one is measuring with a suitable and small current draw so as to avoid the "open circuit" terminal emf readings that tell little or noting about the discharge state of the battery being tested. The model I like best came from eBay. It looks kinda like a small black plastic monkey wrench with a red jaw that slides to the battery top. It has a meter and tests flashlight battery types plus a few other types. The meter has red, yellow,and green areas and may have other markings. It was very inexpensive ($2?) I bought a battery tester from Harbor Freight that I don't like as much. I have done home-brew testing and even tried to implement spec-sheet load conditions, but never found the extra effort worthwhile for home use. In mil-spec custom designed equipment cases, the battery is a known type and thus suitable for more exacting test and maybe a proof of spec compliance in the test design. YMMV. Chuck -----Original Message----- >From: Mike Miller <mbmiller+l at gmail.com> >Sent: May 12, 2019 1:48 AM >To: TCLUG Mailing List <tclug-list at mn-linux.org> >Subject: Re: [tclug-list] [OT] where to get a 100-ohm resistor? > >Thanks for the tips. Strangely, I drove right past Axman at about 5 pm >this afternoon and didn't notice it. I definitely would have stopped. >But it's only about 8 minutes from my house, so I can go any time. > >Mike > > >On Sat, 11 May 2019, eminmn wrote: > >> Here's ax-man's site: >> https://www.ax-man.com/pages/contact-us >> >> pix and circuit diag are here for a simple aaa-9v battery tester: >> http://avtanski.net/projects/battery_tester/schematics.html >> >> It looks like the cost will be whatever you pay for the milliammeter, >> maybe $5 at axman. >> >> Ed >> >> On 5/11/2019 20:01, Ryan Coleman wrote: >>> Skip MC. >>> >>> Axman. >>> >>> There are three locations, one is near MC. I get my resistors en masse from >> them. >>> — >>> Ryan >>> >>>> On May 11, 2019, at 7:34 PM, Clug <tclug at freakzilla.com> wrote: >>>> >>>> They definitely have resistors. What I don't remember if they have is >> individual resistors or if you have to get a pack of like a thousand random >> resistors... >>>> >>>> On Sat, 11 May 2019, Mike Miller wrote: >>>> >>>>> Thanks Clug! Someone at Free Geek told me in very certain terms that >> Micro Center would not have resistors, but their webpage seems to be telling >> me he was wrong. So thanks for that tip. >>>>> >>>>> Another thing -- after reading the comments on the video I shared, I >> think battery testing might be a little more complicated and I need to have >> more resistors. I need to do more reading! It's OK, though, because I'm >> trying to learn a little about electronics, mostly just to be more generally >> knowledgable. >>>>> >>>>> If anyone can recommend a good basic intro electronics book, I'm >> interested. >>>>> >>>>> Mike >>>>> >>>>> >>>>> On Sat, 11 May 2019, Clug wrote: >>>>> >>>>>> Microcenter might have them, but if you're near Shoreview I can give you >> one (; >>>>>> On Sat, 11 May 2019, Mike Miller wrote: >>>>>>> Does anyone have a resistor they don't need or know a local place where >> I >>>>>> can >>>>>>> buy one? I only need one, and it doesn't have to be exactly 100 ohm. I >>>>>> hate >>>>>>> to buy 100 of them for $6, but maybe that's the only way. I asked at >> Free Geek and they said they never have them. >>>>>>> I only need it because I want to use it for testing batteries, as shown >> in this video: >>>>>>> How To Test Standard AA, AAA, D, C, and 9V Batteries with a Multimeter >>>>>>> https://www.youtube.com/watch?v=HcikzMG7mMU >>>>>>> Any advice would be appreciated. >>>>>>> Thanks! >>>>>>> Mike >>>>>>> _______________________________________________ >>>>>>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >>>>>>> tclug-list at mn-linux.org >>>>>>> http://mailman.mn-linux.org/mailman/listinfo/tclug-list >>>>>> _______________________________________________ >>>>>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >>>>>> tclug-list at mn-linux.org >>>>>> http://mailman.mn-linux.org/mailman/listinfo/tclug-list >>>>> _______________________________________________ >>>>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >>>>> tclug-list at mn-linux.org >>>>> http://mailman.mn-linux.org/mailman/listinfo/tclug-list >>>>> >>>> _______________________________________________ >>>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >>>> tclug-list at mn-linux.org >>>> http://mailman.mn-linux.org/mailman/listinfo/tclug-list >>> >>> _______________________________________________ >>> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >>> tclug-list at mn-linux.org >>> http://mailman.mn-linux.org/mailman/listinfo/tclug-list >>> >> _______________________________________________ >> TCLUG Mailing List - Minneapolis/St. Paul, Minnesota >> tclug-list at mn-linux.org >> http://mailman.mn-linux.org/mailman/listinfo/tclug-list >>