... OR ... they took my money and sold my product to someone else, and now they are busy restocking ... seen/heard this from multiple chinese vendors.
I have full faith in OPUS supply being real, but I guess I was giving a warning / eondering about Gearbest as a 'trusted' vendor, more than...
Hi all (those of you still visiting!).
A whole month ago I paid for a couple more OPUS testers from gearbest (average vendor, based in China).
They still have not shipped.
Recently, their freshest excuse is that they dont have stock.
I bought them during a 'flash sale' so ... I dont buy...
as one of my podcast favorites liked to say ... "%#$'in prove it" ...
but seriously ... interesting insight you have ... any sources / references to this claim? (not doubting, just keen for ... more info!). thankyou.
yeah ... and then found WHO to take the dead LiPo???
LiPo is ... tweaky, to say the least.
18650's don't swell up into a balloon .. and are entirely more stable than any LiPo's ... (know anyone with a drone/quadcopter that runs bottom mount and crash landed / flown lately? softpacks are ...
are you sure????
I think pretty much every cell will go to 5V.
wouldn't want to do it by accident. and I don't do it on purpose. but I've found cells dumped from 'harvesters' (shame!) at this SoC.. it's not the end of the world ... but definitely out of spec.
Greets to you Don!
Happy to assist with supply of batteries/cells for processing and/or building.
Keen to visit you in upcoming summer road trip to the South Island. : )
sort of ... no.
problem 1: the disconnect voltage will be too low for large packs/strings. whereas a 'small' (<50p) string/battery may bounce back ok, after discharge has been cutoff ... when you get to like 150p (~300AH) ... you will find that they don't 'bounce back' that much, unless the...
question: what is 'CT'?
genuine question, I dont know that acronym, so maybe others dont too?? i'm very ignorant about most things to do with inverters, so ... spiel away! : )
Then why not pipe the solar as DC to the house???!?!??? (notice my DC bias?)
agreed, except for the PS part.
performance. lifespan. power density ... all plus's in my books. and then there's the aspect of giving old cells a Second Life as Storage (get it?!). save the planet. use what others...
ahem. backfeeding through the ground is ILLEGAL in most civilised countries. for very REAL health reasons. (ever wondered why cows stand on two feet? or why the pigs are ALL sick right now, or why people die of heart attacks when they go swimming, or ... yeah.
do NOT use our EARTH as any part...
yeah, I find it hard to source 48V stuff too ... but its getting better, slowly ... used to be 12V only, and 24V hard to find ... now lots of 24V stuff, and some 36V ... go the 48V nominal I say!
(nice pic, btw) ; )
Redpacket brings up an excellent point, I think.
'long distances' is ... i guess ... a relative term, but ... 20 metres aint that far for DC, as long as the current doesn't peak/spike too much.
by putting 'all in the garage' you are by definition would be putting the existing cable under...
CORRECT. only current creates heat ... which is the reason cables/wire has a current limit, according to conductor 'area' (cross-section).
On The Other Hand ... voltage requires insulation. So a low voltage is fine with hair thin insulation ... as the voltage goes up, so does the requirement...
ok, I respect your decision not to cut into 'their' power supply/lead, BUT ... where are you based?
(it might be wholly your property when contract is paid out, but I won't go on, or press you on this point).
your profile location reveals nothing (*hint hint*) ... BUT ... regardless of where...
great update. congrats on the fix!
looking forwards to more pics too ; P
your plan sounds all very sane to me.
you may get good value out of getting a breakout power lead and measuring the ACTUAL draw of the modem... which should stay pretty constant, is my gut feeling. be useful to know ...
on the ball as always, thanks for the speedy response Korishan : )
yes, well spotted, I just threw this together to test (only) the discharge functionality of BMS.
had better plans for a v2 of this test jig, but have stopped testing as results so very bad, so far!
true dat, BUT this is why...
Hello All.
I sat on this for a good week ... trying to think how to word this post, what pictures to take, and ... reflecting on whether I had just 'missed many clear warnings from fellow members' ... finally, today I did an SLS search on various search terms, EG failed BMS from china, cheap...
ummmmmmmmmmm, YES THERE ARE *shesh*. there are a range of options to set warning voltages on the BG-8S ... no problem. albeit 1.8V might be a bit on the low side. IIRC 2.50V is the lowest setting ... but this is getting offtopic.
I have three of the iSDT BG-8S's ... love them. BUT they are no...
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