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I am putting 4 mini 100ah batteries is 4s to power an EVO 4248 inverter. I already have a 200amp class T fuse on the inverter. From what I have read this may be to big? Also for the battery itself should I use another Class t and what size? Charging for each battery is 10amps. With 4 together...

I saw a thread where someone was using an actove balancer on multiple lifepo4 minis in 4s for 48v to keep them balanced. I am planning on 4 minis in 4s for our 5th wheel. Does an active balancer make sense/work in this case?

There are about 20 of these up for auction here: https://bid.musickauction.com/auctions/catalog/id/445 if anyone is interested. They might take payment and ship or I could pick them up and ship to you. The auction is local. I have no use for them. Just thought someone else might.

I purchased during the black friday deals an Eco Worthy Dual axis solar Tracker. In researching it I thought with a couple of updates it might be able to accept higher watt panels. First would be a change of actuators from the standard 330lb to a 660lb actuator...

I have a single Outback 8048A inverter with 3 FM80 SCC's. Given the attached electrical bill, Do I have enough inverter and how much solar in the 440w range would I need. Any help would be appreciated.

Okay, I have searched the web over and this site and can't find true love. I have the above mentioned BMS and have 16 CATL302ah cells in 48v config. I know I have to short 4 leads together, but can't find the info that tells me which leads and on which cell. A little help here please. Thanks.

Just want some input before I complete the build. Thanks

I have had this about six months. It has a total of about 18 Hours of use in our truck camper. Great for 30 amp camper. Or 50 amp if used for one side of your AC panel. Upgrading to a Samlex EVO 4248sp for our fifth wheel. Look them up, These things are a beast. Solid performer. Same with the...

There are a couple SI5048u inverter/chargers for sale fairly near me for $800 a piece. They are a discontinued model that have been used on a solar trailer. The manual says for inside use only. They say they have only been turned on a couple times and they do show at least one with power on...

Okay, The question for my "Panel of experts" as my wife refers to you. Can you add grid tie capabilities to an already existing Off grid inverter?

I have the opportunity to purchase a Sunny Boy 7.7 for $700. It is a couple of years old. The upside is that I can run the whole house off of this one inverter no problem once I put panels in. The downside that I see is that to have energy storage I have to either purchase a very expensive...

Had heard about graphene batteries. How does this stack up against LifePo4? Maxwell super capacitor 18v500f 1.long life: up to 8 million to 120 million cycles 2.High Power density: up 6700w/kg 3.Low ESR: can be used as a rechargeable battery and ideal for back up purposes 4.Quick charge...

I have CATEL 302ah cells 8p. I am trying to fig out how is the best way to charge our Nissan Leaf with them when other chargers are not available. My thoughts were a 24v to 240v converter or inverter that I could plug the standard 240v charger cord into. I understand it isn’t going to be...

I have had 3 local solar companies give us a quote for solar for our home. The problem? They only want to install their systems and won't even talk to me about what I want installed. The panels they want to install are Jinko, URE, trinia, or similar. They all want to use micro-inverters or power...

Okay, I did my duty and tried to seRch this out. I have 8 Eve 304a cells. The would be combined into two twelve volt batteries, then seriesed to make a 24v battery. First question. Would this be 4p2s? Next I can get two JBD 200A bms for 125 each., or two 120a for 149 each. This will go into a...

Okay I have searched but not found an answer to this question. I have read somewhere of putting a thin sheet of aluminum between cells before compression with the sheets extending out the sides to dissipate heat from the cells. If you are careful to not get the aluminum above cell height, would...

Has anyone heard of this company? I have a residential solar company here in Idaho who claims these are manufactured in Minnesota. I can’t find them or any reviews on them. Thanks

Okay, So new to the site (been lurking) as well as build your own batteries. We have a 2013 Host Cascade truck camper. Presently we have two six volt batteries for 220 (110) amps. In the near future we are looking at building a 24volt system. We will be powering my wife’s bipap which uses 24v, a...