Car battery charging below float voltage?

what does he drive, a rickshaw?

Reply to
Animal
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Yip, and it does, the clip goes round the terminal, look in your own car.

12V DC will not arc across a 2 inch gap.

Half of it.

Bullshit. The fuse touches the terminal.

The drop across the fuse and the clamps in total is 6.5mV at 10.3A. So at the rating of the fuse, 80A, it would drop 0.05V and dissipate 4W. Negligible.

Well one of the power supplies failed - I opened it and found two shorted out power transistors which were not tightly attached to the heatsink and had overheated, despite the power supply never having even blown body temperature air out of it. There was a transistor smell in the room, not sure if it was those (which didn't look damaged, only the dust on them was a little brown) or the other supply which I measured as running at the full 83 amps, so was presumably limiting itself (it doesn't actually say on the specs anything about limiting, just short circuit protection and overheat protection, so I don't know if it shuts off or slows down). Some of the cards were misbehaving, which doesn't make a lot of sense.

I can't find anywhere (can you?) a graph of what voltage to expect from a 130Ah leisure battery (as in the thicker plates variety presumably) at various current draws? It would only have been drawing 7 amps and I can't believe that made a drop of 1.2 volts (which should be required to make the cards play up). Mind you I'm pretty sure some of the older cards get upset at 12.3 volts, because since I installed the bus bars two are working fine that didn't used to work at all.

Lightweight! :-P

My current annoyance is LHC, their CMS tasks. They transmit a huge amount of data while running, from inside a virtualbox. But they're very impatient. When my FTTC pitiful 6Mbit uplink is saturated with them, some of them crash or give up. I'm having to manually adjust how many run, and do some of their Atlas tasks aswell, since if you ask for "anything", you only get CMS!

Reply to
Commander Kinsey

Most people have shorted a car battery at some point in their life. A spanner etc. You pull it off and there's no arc. An attempt for it to weld, yes, but once there's a gap it doesn't arc.

Since the smaller area is only present for a billionth of a mm, and soon gets a lot wider on both sides, utterly irrelevant.

The temperature does not change much. The use is occasional. Something connected stays connected, since the bits touching each other are not subject to corrosion from the air.

Why should I assume something won't do what it says on the tin?

Do you have a link to some data as per what you just said?

I've found a perfect compromise level. I'm running as many CMS (which seems to be their top priority, since they send only those out if you express no preference) as I can to make the internet connection get almost saturated, so they can all send and receive whenever they need to. Then I've set the other machines to get anything other than CMS. This is usually Atlas, sometimes Theory aswell if it asks for many at once. I've moved to 31st place worldwide in recent credit, I expect this to rise to about 11th place. 126 cores should get me somewhere....

All data is useful. What they learn can be used by others to develop cures. It's absurd in the 21st century we still can't fix cancer. My neighbour's wife died of it a year ago, despite him praying for her. Fuck knows why he still believes in god, who clearly either doesn't exist or doesn't give a shit.

You might consider Folding at Home (various biology, although it's non-Boinc so I avoid it, easier to have everything under one scheduler), or Sidock (currently on Covid stuff) or Denis (run by a guy called Jesus!, doing brain cell stuff, but currently out of work), or Rosetta (misc. biology, currently very rare work), or TN-Grid (genetics).

Reply to
Commander Kinsey

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