Most reacted posts

100

My ubiquiti nanostation has a 24v Poe injector but still runs fine direct from 12v dc. The input range is something like 10v-30v

Read the manual for that version then.

My advice which is what I've done is just use the bms for 12v applications and run the inverter with a relay providing it has a remote on/off switch. My max amps pull is around 135amps and this way I have full protection from the smart bms, and it only needs to handle my maxmium 12v which is...

JBD Smart BMS (JBD-SP04S020) 4S (12V) 130A but using a relay to control inverter so max amps is 60A charge $71.77 Very Satisfied. I had 2 Daly BMS's which I think are crap in comparison. Aliexpress, DYKB store messed up the order and it cancelled a month after I ordered so went with thanksforyou...

Make sure the bus bar is tight and has good contact. Maybe take it off and clean everything.

2000/24 = 83amps continuous current. You're all good. Solar is irrelevant to battery protect as they are for discharge only. Do not run charging current through it, attach solar directly to the battery.

The bolts purely hold the cable to the top of the battery terminal, the size of the bolt is fairly irrelevant. Max torque is low, I pulled out one of the helicoils. I bought a helicoil kit and put the same size back in fairly ok, I then purchased longer grub screws as the ones supplied are too...

Yeah, there's lots on ebay too. If you look to the right of the bit where it says DC250v theres a line with dashes underneath, that means DC. If it's a ~ that means AC, some of them on ebay don't say DC/AC but use those lines. Search for this: C65H-DC

That's interesting, not heard that before. 4. The short circuit protection of the BP will be activated if you try to directly connect loads with capacitors on their input (eg inverters). For that use case, please use the BP to control the remote on/off switch on the inverter, instead of...

aaaaaand...here's Thunderfoot lol

6awg discharge, 7awg charge.

Yep you need the bluetooth dongle, or the computer software to program it. There isn't a setting on the MT50 controller.

For what it's worth my 190ah (which are just substandard 200ah) cells look exactly like yours, just taller. I received mine a few days ago.

I thought I'd post this to help out my fellow diy battery builders. This battery box almost perfectly fits 4 x 304 (and 280ah as same size) batteries. The lid doesn't sit perfectly flush but it's not an issue as it sits on top of the batteries, so when you ratchet it down it holds it all tight...

It could be, there’s no way of knowing without testing really. It’s all in the mail but won’t be here for a month for me to report my findings.

I work on the principle if it starts with 13 then it’s good, 12 not so good, 11 very bad, 10 light a candle, 9 u gone darn f’d up

From Triron manual

I messed up a thread big time so i couldn’t even helicoil it. I jb welded a grubscrew in the hole, zero threads. It’s still working fine after 6 months, on high loads 125 amps it voltage drops 0.03v more than the others, and I don’t want to tighten it and risk it breaking. Doesn’t heat up so I...

I just capacity tested my 190ah. Bottom balanced at 3.0v, charged at 20A I achieved 190ah with all cells within 42mv of each other Final capacity was 193.1ah when cells started to unbalance by 175mv odd with one hitting 3.65 I would like to see how other cells appear once they start getting...

What voltage comes from the panels to the charge controller? You want it to be much higher than 24v, but if you have 2 in series and 2 in parallel I would guess it is around 50v? Can you confirm.

Same batteries used in BMW's in China.

I used the deep hot dipped galvanized, but cut it up as I'd need to have bought the 6m lengths to accommodate the 3 solar panels, whereas cutting it let me do all panels with 1 x 3m length. I then used the shallow channel bolted to each panel to raise them up enough to get access to underneath...

There’s a video by Sterling Power on YouTube comparing cycle life and one of the batteries is lead crystal. It’s better than lead acid but rubbish compared to lifepo4

You can run 2 controllers, so I would buy one now and another at a later date, the cost is similar. If you want low temperature cutoff for lifepo4 batteries then you're better off buying the epever triron as the version you've selected doesn't have it.

I must admit lots of people say treat your cells with care and you'll get 4-5000 cycles and only 2000 cycles if you use them hard. That's still 5.5 years of daily cycling, in that time another better battery will be out that you'd want anyway. I'm not going to worry about being too careful...

Looks like it's coming to market next year too. However they're exchanged rather than recharged. https://www.dailymail.co.uk/news/article-7592485/Father-eight-invents-electric-car-battery-drivers-1-500-miles-without-charging-it.html