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I'm installing a Victron 500A smart shunt into my system, however, I'm not sure which post the charge controller negative cable should be attached? Common battery neg post or the other side of the shunt? The picture depicts only the neg lines. All positives are attached to 1 common distribution...

I bought these 2 in March of this year to put into series for my 24V system, saved about $100 instead of just buying a single 24V200Ah battery. Not to mention the size of a single Ampere Time12V200Ah battery is nearly the same as a single Ampere Time24V200ah battery. They've been cycled maybe...

I'm considering getting a dedicated 4000 or 6000W 240V inverter strictly for L2 charging of my 2015 Leaf. Any reason I can't opt for a modified sinewave unit instead of full blown PSW? The cost difference is big, and it will be strictly for charging batteries. Is it critical?

I have an 8S 200Ah DIY pack, and its become clear that I have 2 problem cells. 1 in particular reaches 3.65V while the others are still just a tad over 3.4V. Obviously the BMS charging switch turns off. Once the 1 cell, and the rest of the pack settles down, the charging switch turns back on...

My old setup was a 40A scc to 24V200Ah bank with one of those t-tocas 50A circuit breakers in between. Recently now I've replaced the 40A scc with a 100A unit feeding a 24V400Ah bank, and I'll need a 120A breaker inbetween? Which has got me thinking, breakers protect wires and the equipment, but...

Not necessarily a solar issue, but I hope someone can help. Bought a used 2015 Nissan Leaf 2 days ago (Carvana with 7 days to try it out) The included L1 120V charging cable I plug it into my Giandel 2000/4000W PSW inverter, and I get a flashing green light on the cable brick. It will not...

Windy Nation fuse holder/kit shows this little diagram on the side of the box. Putting a flat washer between lug and fuse? I though this was a no no. Washers are poor conductors right? I get the top washer placement, but shouldn't the lug and fuse be pancaked together?

It's the identical Inverter, the original has been in service for 1.5 years and I'm very happy. I'm just wondering if there is something I've overlooked in this setup. Reason for 2nd inverter? Backup in case of failure and to better balance out my household loads. Like, I can start a load of...

I'm bringing this diagram over from another thread in the safety check forum. Both Ampere's have since arrived. Both were top balanced individually, as was the DIY cell pack, then everything was connected up. The Positive & Neg cables from the Ampere's and the Pos cable from the DIY pack are all...

As depicted, I plan to introduce an additional 200Ah of storage into my 24V system. Up to this point, for over a year, I have had no issues at all with the current setup. (It's basically Will's 24V setup from his video long ago) I just need more capacity. However, with the additional arriving 2S...

This is more a forums rules and regs question.. Is it allowed to post a link to a YouTube video of me showing my setup and asking a specific questions regarding said setup? I figure a quick 1 minute video depicting the actual setup, components, cabling, etc.. could be easier than uploading a...

I've never given much thought to these particular "function settings" section, but I've recently installed a heltec active balancer, and disabled the bms balance function to monitor and evaluate. But what exactly are these first 2/4 items? 1. Switch function?? 2. Load check?? 3. Balance...

I just received this one today. Forgive me, but I can't seem to find it, but there was a post awhile back about "pre-charging" this unit before attaching it. I'm confident with attaching it to the posts..It piggy backs right on the same posts as the bms, but is there a proper procedure? I'm...

Milk Crate Build: My Inverter fits perfectly in the crate, however I have to use one of those flat rotating extension cords to access 1 outlet (which yields me 3 on the other end) but it partially covers the other inverter outlet. My question is, are inverters typically designed to put out their...

Project: milk crate build for camping. 12V/4x200Ah cells w OKS 4S 120A bms 1200/2400W psw inverter (giandel) 4guage wires throughout. Except bms of course. I'm considering an ANL fuse kit @150A? I don't forsee ever drawing over 1200W while boondocking. Would this suffice? Thx!

I have 8x100Ah cells from OKS. Rock solid! I've recently upgraded to 8X200Ah cells for my 24V garage build, so I'm spitballing ideas for these 8 100Ah cells. More specifically, a milk crate build for camping purposes. I've decided to go w a 12V config, and I should be getting the 12V 120A bms...

Just received my 8 new 200Ah cells, (Ninthcit cells-Amazon) which I plan to prep accordingly. Currently in place are OKS's 100Ah cells w/ the 8S 100A bms. Flawless thus far I might add for the last 6 months. I've cycled them consistently, daily, both gently, and occasionaly aggressively...

I'm charging my new 200Ah cells using a very small benchtop ps. A whopping 65W! In between my full time job, and sleeping, I've been charging a few hrs at night when I get home, and a few in the morning before I leave. I've NOT left it going unattended, so obviously it's being done over the...

I've read posts regarding folks double stacking bus bars.. presumably those bars that aren't quite as thick and robust. I've recently received bars with my 200Ah cells that I would consider to be in that category. I can nearly bend them with thumb and forefinger. (See pic, with a penny for...

I just received 4 of 8 200Ah cells. The other 4 are about a week away still. What I want to do is work on these 4 now. I'd like to attach them into my current system, and get them fully charged or close to it. (My benchtop ps is taking forever), so what I propose is to disconnect my current 24V...

What exactly would cause a "HI" (OVP) on this unit, when it's rated up to 32V. I'm experiencing this recently. My OKS bms reports 29V, my CC mt-50 reports similar, and even directly metered with my fluke right on the batt and inverter terminals, I'm getting 29.0-29.1V.. So, is there a setting on...

From the manual, "max pv array power" for my 24v system shows 3120W. But another section shows "max pv input power" is 1040W. So I'm wondering what's the difference? I'm about to do a 2S-2P with my 250W panels (voc=37.6 isc=8.85 each) so that equates to 75.2V@17.7A= 1336W going to my CC. That is...

I made the trip from Vegas to AZ and back and picked up a palate of 20. Right now, I'm only needing 8, but I figured I'd maximize my effort and load up 20. (900#'s worth was the sweet spot for my Ram 1500) I've had 4 installed on my backyard ground mount rack, and they perform beautifully. Not...

Epever 4215bn (150V/40A) 24V 100Ah LFP 4x250W used santan panels arriving soon. (Voc 37.6 isc 8.85) Options: 1. 4S (150.5V / 8.85A) 2. 4p (37.6V / 35.4A) 3. 2s2p (75.2V / 17.70A) Either option is within range, although #1 is barely over the 150V max..but.. Will stress tested this exact cc awhile...

I've seen a few remarks about Lynx batteries here, (months ago) but not any definitive feedback. Anyone well along with these, care to share their thoughts? Thanks

As depicted in my diagram. I wish to add additional capacity into my current DIY system. (Pretty much Wills 24V setup) I've not yet decided on a 200Ah or 280Ah bank just yet. Funds will decide, however 2 questions: 1. Recommended BMS for either the 200Ah or 280Ah bank? 2. Once I get my selected...

Epever tracer 4215BN going to overkills 8S 100A BMS 24V bank. I can't figure why, when I'm at a 75% soc for example, the "batt" and "pv" leds on the cc are both flashing green at the slow rate? PV flashing indicates charging, and "batt" flashing according to the manual says battery is full. Bms...

I'm adding some led lights strips around my back patio. My 24to12V converter out wires are 10guage, and the leds, as shown, are 22guage. I've exhausted my search for some kind of connectors, clips, harness, distribution point or other solution to utilize for this. Plenty of connectors in the...

I'm adding a 12v led light string to my back patio from my 24V setup in the garage. About 50ft of weatherproof led strings along the underside of the patio. My question is, can I simply tap into the load port on my epever tracer 40A and just leave the load turned on all the time? My potential...

I've been wondering this for awhile, but hesitant to ask for fear of ridicule? but here goes. Can I disconnect my pv panel from my SCC and attach a bench power supply to it, set it appropriately (in my case in peak sun here in December in Nevada I get 28-32V @ 4-6A from my one 250W panel)...

Just making sure, I read a note on an Amazon review that the cord is NOT a standard phone cord wire. Mine came w/ a 15 foot cord, but I really need a 25' for my application. It LOOKS like a regular phone cord, and the manual only refers to the cord as a "remote cord" not rj11 or rj45. And again...

OverkillSolar 8S 24V100AH pack OverkillSolar BMS Giandel 2000/4000W inverter So, I havent really put this pack to the test yet, but today, after charging it to 97.88% capacity as reported by the bms, I, at sundown, with PV panel disconnected, hooked up a simple halogen lamp to a kill-a-watt P3...

So I basically have Wills identical 24V 2000W setup. Mounted on a wood panel on the wall of my garage. The grounding screw on both the inverter and the CC are not currently being used. Am I ok to run a 12 or 10 guage wire individually from both, directly to my neg distribution block? At this...

So, I'm browsing all the reviews and tips on Amazon for this unit. Very little mention of this, but I was alerted by the included instruction NOT to short these 2 connections, but holy cow! they are SO darn close, and after lugging up and tightening down everything, I'm just not comfortable with...

Just curious about the load terminals on my TracerBN 40A w/my 24V lifepo4 setup. Newly setup (offgrid) system in my garage. Seems like this is a quick & easier access to a low to moderate draw accessory for lighting or the like? Theres a whole timing schedule that can be programmed on the MT-50...