Path: ...!news.mixmin.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: Snag Newsgroups: rec.crafts.metalworking Subject: Re: SNAG: Re: Got 4Ah, not 5Ah, battery 18V (20V) - done right thing? Date: Sun, 19 May 2024 19:09:15 -0500 Organization: A noiseless patient Spider Lines: 68 Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Mon, 20 May 2024 02:09:16 +0200 (CEST) Injection-Info: dont-email.me; posting-host="88e6e20534a25ba5c837412dba16e418"; logging-data="3817298"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18vQN80bBFg0/aWRzBE50wjUDQhFhzfV9g=" User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1 Cancel-Lock: sha1:J1puY42imLwrLk0NlcSkf9Ko9LQ= In-Reply-To: X-Antivirus-Status: Clean Content-Language: en-US X-Antivirus: Avast (VPS 240519-6, 5/19/2024), Outbound message Bytes: 4724 On 5/19/2024 6:40 PM, Bob La Londe wrote: > On 5/19/2024 4:29 PM, Bob La Londe wrote: >> On 5/19/2024 4:17 PM, Jim Wilkins wrote: >>> "Bob La Londe"  wrote in message news:v2djrv$3hfus$1@dont-email.me... >>> >>> On 5/18/2024 7:33 PM, Jim Wilkins wrote: >>> ... >>> >>> I never was employed doing destructive testing, but I did spend a decade >>> or two doing low voltage communication contracting.  I learned there is >>> what they say, and there is what there is.  Usually what they say fell >>> short in my field, but sometimes it didn't. >>> >>> When they say an IR motion sensor will detect motion at 90 feet they >>> mean if ambient is below 70F and the subject is large and is running a >>> fever.  LOL.  They don't say if ambient is 90+ its virtually worthless. >>> >>> --------------------- >>> Most of the testing was to find and reject or reclassify parts that >>> didn't meet specifications for companies that cared, or burn-in >>> testing to weed out early failures by operating at elevated >>> temperature for a week. The exact conditions were usually secret, I >>> had to provide a range of adjustment. Sometimes there had to be >>> provision for destructive failure, such as Chrysler Lean Burn engine >>> controllers with components not rated for possible under-hood >>> temperatures. >>> >>> Before Congress mandated emissions and fuel economy standards that >>> needed electronic control to meet, the only electronic device in a >>> car was the radio which the auto makers bought, they had to hire new >>> engineers unfamiliar with the heat, water, dirt, salt and vibration, >>> who took time to learn. I had the partial advantages of military >>> electronic experience which solves those, in commercially >>> unaffordable ways, plus a hands-on apprenticeship in custom >>> electro-mechanical machine design. The engine compartment environment >>> can be nearly as challenging as military aircraft specs, consider a >>> snow plow driver in Alaska starting cold and diving full throttle >>> into the deep snow in front of the truck, or splashing through an icy >>> puddle. >>> >>> Heat in the South is another issue that's not so evident in Michigan. >>> I know what Atlanta is like in summer. >>> >> >> >> Bell Labs had material test sites down here in the Sonoran Desert for >> environmental testing.  Death Valley may be the only place in North >> America more hostile than the low Sonoran Desert.  They had panels >> setup with material samples affixed out along the southern rail line >> right of way.  Maybe they still do (if they are still some form of >> Bell Labs).  I haven't checked in a long time. >> >> >> > > Yes I used to ride year around in it too. > It's only the last couple of years I haven't ridden year round . My wife says I'm gettin' old , but I don't believe her . It's just that I have so much here to keep me busy ... and well , wrasslin' an 800 lb touring bike around the yard to where it's parked isn't as much fun as it used to be . The planned gravel work may change that . -- Snag "They may take our lives but they'll never take our freedom." William Wallace