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I am modeling my battery after the 8S 24V block setup except I will have two 8S blocks in two steel boxes with two 8S 24V 100A OverKill BMS's. I'm hoping to create a 8S2P configuration. I'm not sure how to wire the two boxes together. If you wire up two 8S packs, each with their own BMS how...

Putting a battery together and got some sparks for no known reason. I put my multi meter on the negative pole and my positive lead on the square QR code on top the battery. It tested 3.49 volts. Is this a defect or something common?

What is the best way to connect the battery positive and battery negative terminals (BC0 and BC8) on the cells to the BMS and the + bus bar? I want to bend the copper bus bars to 90 degrees, run a 3/8" stainless bolt through the wooden compression wall for the bus bars for battery positive and...

Hello Folks, I'm trying to buy parts for and build a 2000w, 24v solar-powered system. I'm a newbie. On Will Prowse's website here: https://www.mobile-solarpower.com/2000-watt-24v-solar-system.html, under the picture (attached) he states that, "Due to a recent change by Victron, the battery...

Got a bad cell and need a good cell. If you have one for sale please contact me. Cell must be new or almost new and tested as okay.

I need to join my two 8S Modules with two 8S BMS's to power a 24V system. How do you do it and what should it produce? Fuse both positive leads separately and join positive leads to positive bus bar. Separate shunt for each module's negative lead and join to negative bus bar? 1200W solar...

I have two 8s 100A Overkill BMS's on (16) 3.2v 100aH LiFePO4 cells in a 24v battery banks. The inverter is off, there is no load on the batteries, the remote monitoring display MT50 shows the batteries charging (see attached). The MT50 shows a charged battery. The software shows zero amp...

I have a 24v battery connected to solar panels. I have two BMS's connected to the two 8S banks. I can't get the BMS's to connect to bluetooth yet to set the maximum charge. Until I can figure that out what is the maximum charge I can let the battery reach?

I've got some spare panels 250W x 4 and 100W x 4, a couple of Battleborn LiFePO4 100aH batteries and five 3.2v 280aH LiFePO4 cells (in various conditions, some swelled), plus lots of wire, breakers, etc. What is the best way to utilize the extra solar panels? Or, what would make an interesting...

2x 12v BB 100AH batteries provides 100AH at 24v or does it provide 200AH at 24V?

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I have (2) Overkill 100A 24v BMS's with Bluetooth and it works great when I'm close to the battery. How can I monitor the cells from my PC desktop or laptop? Is there an off-the-shelf solution available?

Does anyone know if "powder-coating" on steel is non-conductive and suitable for a battery compartment? With the advent of electric cars this must be very important. I had two boxes made in China and wonder if the inside is safe. This site is relevant...

Is there any information about combiner boxes for panels in parallel? Three 415W solar panels in parallel. Looking for a simple inexpensive solution that meets safety requirements. https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2380057.m570.l1313&_nkw=geya+dc+circuit+breaker&_sacat=0 or...

Is this fixable? Seven cells are charged to 3.69 to 3.71 volts. I have the EBC-A40L Charge Dischage Capacity Tester though I have not used it enough to know much about it. How to discharge these over charged cells to 3.60 volts is the problem. Suggestions?

What size wire output to receptacles. I think 30 Amp. Help.

Couple of questions for a mobile application; a van. Is there a guide for it? Do I need a plastic box for the outlet and switch? The stores sell steel boxes and covers. Should it be 15 Amps or something else? Stranded copper wire or solid?

I am ordering Lifepo4 batteries from Shenzhen Basen Technology Co., Ltd. on Alibaba (see invoice attached). Is this a good price and are the the cells I need to build a battery bank?

I am buying Lifepo4 batteries from Shenzhen Basen Technology Co., Ltd. (see attached invoice). Does this price look like fair market value as to the batteries and the shipping? Thank you.

I did a capacity test on one BB 12v 100ah battery over night. I set the dummy load to 5A and the battery is at 12.8V this morning. The test has gone over 12 hours. Does this look right or could the battery be defective? Multimeter shows 13.05v. The battery was at 13.56v last night. How low...

Is there a device I can buy that would utilize the power in my battery bank via inverter to jump start my car battery?

In my case the three panels will be connected in parallel. The panel wires will all go to one homemade combiner box on the roof with all negative on one grounding bar and all positive on another grounding bar. All three positive panel wires will be fused with 20A inline fuses. A 6 AWG wire...

I purchased 16 cells locally in August 2021. It is May 2022 and I'm putting a 8s2p 24v system together. All cells tested 3.29v except for the last cell which tested 0.8 v. I am charging it now to 3.29v; is the bad cell ruined or do I continue charging it? I believe the bad cell tested 3.29v...

(16) EVE 2.3v 280Ah cells = how many amp hours? Thanks.

Putting two BMS's on my (16) Eve 2.3v 280aH cells and need some advice. Can one connect the positive output of one BMS to the negative output of the second BMS? Thanks.

What AWG wire is recommended from (16) EVE 2.3v 280Ah LFP battery bank wired in parallel to Samlex 24v inverter/charger?

Can I safely connect a 3Ft 8awg MC4 extension to a 3Ft 12awg MC4 solar panel wire or at what point from the solar panel to the solar charge controller is it safe to use a larger wire size.