Recent content by Redd

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    LITHIUM BATTERY EXPLOSION!!

    Amazon has a special problem. They call it "binning". Most folks are unaware that when multiple vendors sell "the same" item on Amazon, Amazon takes the items from all of them and stores them in ONE BIN at each warehouse. So if you buy a popular brand name charger that is available from ten...
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    Salvaging a 6x6 50W emitter array?

    I've got a couple of "50 watt LED floodlight" emitters, each about an inch square with a 6x6 grid of actual LED's in them. The kind that look like a yellow postage stamp not discrete LED's. But both failed after +2 years, with the last row of LED elements flickering on and off. I know there's at...
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    can anyone recommend the brightest budget 12" light bar??

    There are also a LOT of counterfeits and simple fakes selling online. If CREE made as many LEDs as sellers claim to be selling...they'd be a much larger company. Consider how many "Ultrafire" batteries you see being sold on Ebay and Amazon, and then look closely at their labels and compare them...
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    Introduction, and my personal Hell

    Understand that (as others have mentioned) you may be dealing with a car thta has multiple integrated computer control systems, i.e. "CAN BUS", and that depending on the vehicle specifics, the car may actually monitor the power consumed on every socket, and throw error codes or create other...
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    50W 100W LED floodlight emitters?

    Not exactly the right place to ask the question, but I thought some folks here might known about "scorchers". (Mods, please feel free to relocate.) I have a pair of "fifty watt" LED floodlights bought several years ago on Amazon. They use a 50W rated emitter, which appears to be a 5x5 or 6x6...
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    "CAN Bus bulbs should not be used in non CAN Bus applications"?

    It has been a long time since we were taught to build flashlights and buzzers in grade school and I learned about Ohm's Law and Magic Smoke shortly after that. As others have suggested, a vehicle with a CANBUS system uses multiple computers to monitor multiple systems. The Germans especially...
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    Anybody remember Tekna Lights?

    Forgive me for raising the dead. The small Tekna that takes one CR123a cell is a Tekna Mono-Lith. It takes a small screw-thread bulb, and I can't quite read any numbers on it. The next larger one that takes two "N" cells take a standard small screw-in bulb, the one common on soldering guns and...
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    Do I really need NiMH Batteries?

    Lithium primaries are, sadly, designed for low power output. So if that's a flashlight that sucks power...the lithiums won't light it up. They're also a waste of money compared to new alkalines, which have the same 10 year storage life rating but high power output. Assuming the new alkalines...
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    Does anyone make primary Lithium C and D cell batteries?

    An update of sorts. I was looking for lithium cells for some "stashlights", intended to be left alone without worrying about the usual alkaline leakers. Found out a few "new to me" tidbits. SAFT make lithium primary cells, AA, C, D, but they are all 3 volt cells. And while you can find dummy AA...
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    Duracell replaces things damaged by alkalines?

    I have had replacements and accomodations (refunds) by all three over the years. All three leak, I think Duracell the most. And for over a decade I've told them all "I don't want more power, I want no leaks". I think other folks must have said the same thing because now they all advertise "less...
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    SEV Marchal is BACK!

    In the early 1970's I bought a pair of 7 or 8" Marchal auxiliary lights, deep form, gray paint. Bolted them into my car for rally and backroad use. And I changed out the original bulbs for thoroughly illegal 100W bulbs, one each. Around 1990 they were stolen with (on) another car and I haven't...
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    Deep cycle charging questions

    Seeker- Folks will disagree about how to measure capacity and whether voltage after how much resting time means what, or what "fully" charged voltage is. If you want a way to find out the state of charge and the power used without math, look for one of the watt meters like this one...
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