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OK. I do not have a link. Have a friend who contacted a seller who is claims to be selling this battery. The brochure says it is a 15s1P, my friend indicated he was told they are doubling up the Gotion 102ah cells. There are some old posts on Lithtech but they are far and few between and don't...

It never seems to fail. I buy extra lugs because I love DIY and I seem to go through them like there is no tomorrow. Just recently I used one of my last 1/0 lugs even though I recently bought more. I keep them tidy in separate bags for organization. Yet they seem to evaporate into thin air...

OK. Perhaps I am the only one. I have more than one project going on right now. Between a bathroom remodel and a portable build I have tools distributed in creative places to help me get things done. As a result the neat and orderly has well, sort of lost its place. Currently looking for a wire...

OK. I will be using a Multiplus II for a portable use situation. Because of this I will be using an extension cord 12 awg for the input. This Victron version uses a tension connection and not a screw down. It worked great for the 6 awg output. However when I insert the 12 awg will will not...

So there is a lot of discussion on panel temperature and winter being a great time for power production due to panel cooling. Was considering an idea which would not work well on the roof but might be a consideration for a ground mount situation. There is plenty written about solar panel driven...

OK. The photo below does not show a bench or swing. It is for an outdoor mini bar. However in looking at the construction it seems to hold potential as a simple frame that could hold 1 or 2 solar panels. If the front were hinged and the rear adjustable up and down it could be angled to match the...

This is for all those crazy ideas you had which would defy the laws of physics. We have all heard of the perpetual motion machine. That is one example. I will start. A self charging system. Output from an inverter charger fed by batteries would be used to charge a second battery fed inverter...

Most everything discussed, with the exception of a few portable units is building a system big enough to handle (fill in the blanks). Was pondering the concept of multiple stations which could serve a specific purpose. For example instead of a UPS have battery packs that could provide power to...

I am connecting Catl cells together. Currently I have solid bus bars. These are cells with stud terminals. The challenge is that one of the cells was a slightly different height than the others because of source. Will be replaced with copper mesh bus bars. Should help with terminal alignment.

Before attaching my BMS I did a multimeter lead test and the voltage increased as expected across the leads from negative to my last lead. I attached my BMS and turned it on. The voltages were as expected. Wire resistances were the same. I checked the voltage from positive to negative on the...

Looking for a basic Lithium Iron Phosphate charger for a 24v pack. Looking for something that is portable. It does not need to have an inverter. Any suggestions? Thanks in advance

It is a journey. Learning as much as you can and wondering if you will ever arrive. Would not be in this position if it weren’t for the unselfish and ever helpful members who frequent this site. While members have transitioned through the years there are still some who continue to help...

Wasn't sure where to place this. We all have a strong interest in solar and countless threads are written on the topic. I was curious what other interests and projects others have worked on that they found interesting. Recently I found myself learning the details of a modern hot water heater...

I currently have ac feeding into my Multiplus to charge my batteries in parallel. I turn this on and off as needed. I am hoping to add a second line in from an outside generator. The plan is to utilize a changeover switch so that only one ac line feeds the Multiplus at a time. I am currently...

Saw this today at a Rural King. Hydraulic hinged lid. Made me wonder how it might be used with wheels added. https://www.ruralking.com/delta-job-site-box-48-toolbox-637990

I wanted to share my journey to build a portable power station. The overall specs will be a DIY 8s 24 volt battery with the JK active balancer. The current plan is to mount this on a portable dolly and have it tie into a Victron Multiplus II inverter charger. In its current design it will be...

Server rack batteries are a very popular topic right now. Another popular topic is cases that DIY batteries can go into. There are a number of brands discussed on this forum. Has anyone built a home made rack that the DIY battery cases go into? Opening up the floor for a show and tell on...

Often a member shares their aspirations to build a system. One piece of excellent advice that often comes up is to perform an energy audit. Having done this, I was humbled. Something as simple as a standard personal computer consumed more power than I thought it should. I could provide numerous...

OK. Have a situation where I would like a switch that stays closed or on when there is power and opens when the power goes out. This for the first phase of a two phase process I am considering. Basically once the power goes out I would like a low voltage switch to be opened or essentially turned...

I currently have a Victron Multiplus 3k which is attached to dedicated circuits separate from grid power. Am playing with the idea of building a portable unit that I can attach panels to or plug into the wall that I can roll around as I need power. Toyed around with the Multiplus II 3k since...

Ok. There are plenty of discussions on UL ratings and cost comparisons of DIY vs prebuilt batteries. What I want to know is who is still doing DIY and the reasons you chose this approach. I will go first. At first it was the only thing going. Later it was for the challenge and satisfaction...

Being a DIY battery builder slightly tempted by the current sale. Granted it is only $10 per cell but $$ is $$. Anyone else utilizing this sale?

I am planning on having a panel shut off switch outside. Got the Midnite unit. The Multiplus allows for a control panel to be connected to it via Module H on the schematic. According to the Victron forum this can also be configured as a shut off switch. I have yet to run my Emt and want to...

OK. Was participating in another thread. I mentioned creating a UPS like battery for my Freezer. Not that hard, inverter, charger and a battery less assembling and wires, etc, etc. Then I went out and looked a the Samlex inverter. A very nice unit. Just for grins and giggles, I went out to...

Had a small leak on kitchen ceiling. Turns out there was a crack in the plumbing stack gasket on the roof. This can happen when roofs have a few years on them. Found a helpful video from This Old House. Used a special adhesive and then added a new gasket formulated for this application...

Really enjoyed Will’s most recent video on a mini split install. Got the creative juices flowing. I was curious what others were doing to frame in the lines outside the house. Aluminum siding poses a challenge because of the lap siding. A hole would work best on the flat surface. Locating that...

Many of us came to this forum wide eyed and enthusiastic about the concept of solar. Many watched videos on YouTube and became intrigued about the possibility of converting sunshine to electricity. For many it has been quite a journey. We gathered our thoughts and shared them with the...

I am planning on running two 4 awg wires and a 6 awg ground in metal conduit. Originally I was planning on using one inch conduit since this is the outlet size from the breaker box. My original plan was to fish the wire through a little at a time as I piece things together primarily because...

Watching some recent threads about vendor service quality has been very encouraging. There have been surveys which strive to capture satisfaction. Two key vendors are actively discussing recent hires and web site updates with hopes of benefiting members of this forum. A number of these...

Just finished fishing some 4 awg wire through 1 inch conduit. There are numerous twists and turns in a small area. Very difficult getting it through, but with time and patience and improving technique got it through. My question is the scuffing that happened. I included a photo. It seems...

This entire process has been a vast learning experience. I reflect back on my "innocent" days when this was "easy". Just do 123 and everything will go as planned??? I know models have been discussed regarding this. Very true. I have an up and running "UPS version". I am now in the process of...

Starting to consider the next phase of the project. Installing ground mount panels and connecting them to the system There is a lot on line about line depths. Metal conduit requires less depth but might have water concerns? PVC is more robust but burial depth is 18 inches if I read things...

OK. I may be the only person on this planet who just learned this. However found it interesting. The following Youtube video from Midnight Solar discusses the direction the breaker should be placed. It starts at about 4:30 in the video. I then included a photo of the breaker. My question is does...

My brother in law used to refer to the newest technology as "bleeding edge" because of the addition costs required to purchase it. We all grew up with interesting phrases. Here is a chance to share some of your favorites.

Last weekend I was lugging around a solar panel, trying to see what locations would provide good solar input. After lifting it for the xxx th time, I decided to make a cart, or dolly to move it around. It is not finished but I thought I would share progress as I go. The panel is slightly...