OT: UPS manufacturer

Thanks, I will keep that handy.

@jusme.com>

I should add that I purchased a new APC unit probably over 20 years ago and it is still going strong. I also got two secondhand ones not long after, and they are still running. Batteries last 3-5 years (shorter life for the one in the rack). Two are 1500kVA units and the other (rack mount) is 700kVA.

I use Network UPS Tools to monitor them all, and it works well.

- we get quite a lot of sags and surges, but they are Smart-UPS models and handle that well. I did get the units partly for overvoltage protection.

- I have them set up to handle three groups of systems, and they do a group shutdown in each case when the battery goes low. I have never had to do this in anger, but have tested it thoroughly.

- I run a battery test once a week. I have a script that then waits for 5 minutes and reports the battery percentage. Given the shortness of the test, the battery ought to be back at 100% after that time. If it isn't, I keep a very close eye on it.

- I get batteries from MDS Battery

Thanks. Also parked in a file for reference.

Even outlet testers aren't infallible.

"What's inside a neon socket tester?"

Which is exactly why I engaged a licensed electrician.

OK. I have processed a Return with Amazon, and it has been accepted. It will go using Royal Mail. But I know that Royal Mail does not allow batteries, so what happens if I say, truthfully, that there are batteries inside? The Returns process has no option to ask this question.

I have three of them (2x SU2200 that take four 19Ah batteries each and

another added to the list, thanks.

Good god! that is some serious UPS to give you a total capacity of 3700 kVA, so assuming a PF of 1.0, at 220 V, thats a max current of 16 kA.

Given that a domestic electricity supply is 100 A single phase giving 22 kW max load, you must have a 11 kV feed and a transformer on site to give you that 3700 kW which at 220 V is a current demand of at least 17 kA.....

I hope you have bought shares in National Grid.....

Oops.

s/kVA/VA/g

I *think* as long as they’re built in or connected (eg batteries in phones or UPS say) and if they’re lead acid (but of an unspillable type) you should be okay.

That’s my reading of the rules anyway.

Amazon reconsidered, and then said that they would have it returned by Hermes. I pointed out that Hermes is now called Evri, and soon after, they sent me an Evri shipping label. The unit will be dropped of at the local Evri agent on Monday.

So I should get my money back from Amazon for the first unit, and I can continue on with Eaton, in case I get a working unit soon. They don't care what happens to the other two, I think they know what's wrong with them, and they are not worth fixing.

Get in touch with Big Clive. Sounds like something right up his street. It would make a good “fix it “ video.

snipped-for-privacy@gmail.com

Tim

I tried to send Big Clive a message, but I get a reply that the SSl/TLS certificate is faulty.

Can an individual gmail user supply their own certificate? I wouldn't expect so ...

I bought an AAA/AA/C/D/PP3 NiMH/NiCD charger years ago, then recently saw a recall for it[1]. I tried to contact Big Clive on that address in case he wanted to investigate the reason (supposedly inadequately earthed, two pin mains connector), but have never received a reply.

He replied to me about an ioniser about 13 years ago, but his youtube channel has really blown-up since then ...

That is way beyond my pay grade. If I try again, I'll copy and post the exact message. or I might just forget it.

Not all the items he features explode/catch fire.