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I was having an issue with a breaker popping while using the chargeverter. In the investigation process I discovered that to put 5.1kW into the batter bank using the chargeverter I was pulling 6.8kW from the generator. I was a little surprised that the efficiency was that low. That is like a...

Friend has an EG4 battery that went into low V protect mode. Signature says he need a small charger to bring it out of protect mode. The manual just says to charge. I don't see what the difference is between a charger and solar panels. Anyone know if you do indeed need a charger and why?

I am wondering if anyone has used Expert Power to purchase cells. I have had less than stellar experiences buying cells directly from China or from the stateside warehouse suppliers. This are the cells: https://www.expertpower.us/products/16-3-2v-100ah-lifepo4-cells?variant=40264336638050...

Hi All, I am helping a couple of friends figure out how to put their systems together. Both of these will be inspected by the local B.D.. One is putting together 6kW of panels and the other 27kW. One will have 2*LVX6548 inverter/charge controller and the other will be a 4 stack of the same. So...

I am going down to the high desert in San Diego county this week to help my step son get the footings ready for a 6kW ground mount array. Class c soil I think. They want 12 * 2' diameter, 3' 6" deep holes with 2 inch schedule 40 galvanized pipe for the footings. That comes out to 5+ yards of...

Starting to hook up my new battery bank/ Looking at the chargery documentation it looks like that on a common port installation the A terminal of the contactor goes to the battery and the B goes to load. It doesn't actually mark the A and B but from the drawing it looks like it does. Can anyone...

Howdy all, Well, for better or worse I have a Chargery 16S BMS for my new LFP pack. Looking at the manual it seems that it puts the charge and discharge relays in series. How does this work? Aren't they just relays and hence bi-directional in nature? I had assumed that I would have to sperate...

Argh! My effing brother in law! We have been slowly top balancing 20 * 280aH EVE cells. My BIL got impatient and asked if we could crank up the voltage on the power supply to get it to charge more quickly. I told him that while that would work it was risky as once the batteries got full they...

Hi All, I was working out buying some batteries from Amy but I took too long and she is now out of stock until March. Are there any others with a reputation as deep as Amy's? I need some batteries! Thanks!

Hi All, The hardest working golf cart in America is getting an upgrade! I just got my 36V battery from batteryhookup: https://batteryhookup.com/products/36v-48ah-1776wh-spim08hp-36v-power-module So now I need a BMS. Specs need to be: 36V, 100 or more A, low/high voltage cutoff and temp...

Howdy All, I am upgrading my golf cart, which is the hardest working golf cart in the country, to LFP. I have the battery on the way and I need to figure out a charge controller. It is a 36V cart and is charged from a small 350 watt dedicated array. The problem is finding a charge controller...

Sorry about the title. I couldn't resist. Member @D. Abineri sent me a PM the other day asking about my angle iron solar panel rack and I said I would send some pics. I figured I'd put it here in case it is of interest to anyone else. I built and assembled the rack. I made all the brackets and...

Hi All, I am looking for a small DC to DC charger. I am putting a VHF radio in a 2020 Subaru Crosstrek. To avoid running wires up to the starter battery and to isolate the radio from the battery powered systems I want to put a small battery under the seat and charge it from the cigarette...

Hi All, A buddy of mine needs to be able to run a water pump to occasionally water some new fruit trees. He is off the grid and the power system is currently too far from the water tank to be able to use it. He has a 48V golf cart used as a utility vehicle. The idea is to hook an inverter up...

Hi All, I am helping a buddy with an installation that will be between two parallel shipping containers with a shed type roof built between them. The panels will not be mounted directly to the shed roof but will be on their own mounts. He wants it this way to get a good angle on the panels...

Hey All, I just want a double check here. As a self edgimicated guy sometimes I miss things. I have always understood that the ground and neutral should be bonded in only one place. I just sold my teardrop trailer to some friends and as soon as they plugged it into their outdoor GFI protected...

Hi All, I have a 4S, 1200wH pack of Fortune 100aH aluminum case batteries. A couple of weeks ago a left on load dropped the battery pack to where the BMS shut it off. Oops. I charged it back up and a week or so later I looked at the BMS software (the one in this thread...

Howdy All, Someone on another forum said that DC to DC chargers (like the DCC50s, etc) actually are DC to AC to DC. This doesn't make sense to me, I had figured it is a buck/boost kind of a thing but I have never examined the circuit in one of these type of chargers. Anybody know how these...

Hi All, The Renogy DCC50S comes with a data cable. As far as I can determine they sell no interface to use it. Any idea why it comes with one? Any information about data it puts out and is it possible to change settings? Thanks!

Hi All, I was figuring out what wire to order to install the DC to DC battery charger in my van. I decided to try the Blue Sky calculator I often see referenced here. http://circuitwizard.bluesea.com My numbers are: Voltage: 12VDC Run: 15' Amps: 50 Allowable drop: 3% I selected "terminated...

Hi All, An off grid pal of mine is finally upgrading his system. We installed a new inverter and batteries a couple weeks ago. Now he wants to add some more solar panels. Naturally, since the system is 6-8 years old the same panels are not available. My understanding is that as long as we get...