Recent content by Silentpower

I'm interested in the notion that consumer grade ups overheat. The apc range, which I've used are line interactive which I take to mean that the inverter side continually runs the load, and a brown out causes the external supply to switch to battery, rather than external supply failure causes...

I'm fairly sure that it's 1kwh for 1square meter, not 6. Which is why the testing standard is as it is.

I've got a hangover now.....

Yes yes YESSSSSSZZZ

Ah, go on, hit me baby ?

I used to look after milk floats which were powered by 36 400ah 2v cells. First sign of failure was warm cells. When they get older, plate resistance is not uniform across the surface and this causes localised heat. The effects of this is to slightly buckle the plates, shedding some material in...

Oooh, ya get a hit with all the likes at the bottom of a thread reply.... Is this the Facebook of environmentally sound power production?? ??

A good mppt SCC is able to accept high panel voltage, so you series the panels or a combination of series parallel. This lessens the voltage drop on a cable run.

Hi, can't give my opinion on the first question, but for the second, if you are used to fla you'll know that for every 1amp you can only realistically use 1/2, to keep the battery in good condition. Different for lithium, for every 1amp, you could use all of it, or for extended life 8/10's. This...

Interesting thread. I have a system based on a 48v 100ah battery. I think I might struggle with what you are proposing.

Hi, I did a run time to get a basic capacity test for the bank. It was around 4 hours @20amp drain. I used a heat gun, like Will does. It was very simple and without a watt meter. My batteries are charged with an EpEver nd series I tracer. This is custom programmable and has been rock solid so...

Hi Jamie, this is my small mobile set up. I have 70 20ah 3.65v cells arranged in a 5p 14s config which at full charge is around 5kwh. The cell chemistry is nmc. I've just bought another 70 cells to double capacity. Obviously you know all about the apc. My apc has never let me down.

Just tiny length of heat shrink would have done the job, can't believe they (BB) neglected that. Someone should be blushing today....

Sorry to hear that. I do need to cycle mine a few times occasionally, there seems to be no rhythm or rhyme to it, although certain battery voltages seem to make it happen. I'm a stubborn old git, and when something like this happens I try to find a pattern in the fault. As a last resort, I'd be...

Not sure why, but mine sometimes takes a few attempts to get it to start. Same thing regards the fan. The amount of time you have to press the start button seems to vary slightly. Mine always fires up in the end.