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I have a small server, intel NUC, that uses less than 5 watts at 12-19 volt input. So it fit perfectly in the range of charging voltages for a lifepo4 battery. I have a 12V 8Ah lifepo4 cell I want to use for this UPS. Combined with a victron smartshunt/bmv to monitor the SoC. It will not be...

I have a few super capacitors and want to make a module out of it with an actual BMS to balance the voltages between the cells. I have loose 500F 2.7V supercaps that I have done some experiments with. No protection circuit yet. Charged with a bench powersupply tot 2.6V manually until no more...

I have a small solar system for about 2 years now and I love it! It's really small with only 250W peak for about 3-4 hours a day in summer and about 100+ for maybe 6 hours. On average between 0.7 kWh - 1 kWh of generated power. I know it's peanuts but it's enough to keep my phone, tablet...

For nearly a year now I have my DIY-ish self built 88Ah LiFePO4 batterybank. It's made up of 11 smaller 8Ah batteries, joining on a central busbar, individual cell fuses, disconnect switch, 80A main fuse and to monitor it all a Victron BMV-712 Smart. Each battery "cell" has an internal BMS that...

Over the last 12-15 months I have been starting with a solar setup on a balcony. It works great! And over the year I have made upgrades here and there, learned a lot about wires, electricity, amps, watts and all that. It's mostly victron equipment and I use VenusOS on a Raspberry Pi to upload to...

For experimentation and because it was earlier...I have a 12V battery bank about 20 meters away from a small inverter. To get more power over a 4mm2 cable at that length I have been using a victron orion (10A) to boost the voltage to about 24V (24.75). I use car sockets and car USB chargers to...

I am very happy with my victron gear and a rpi with VenusOS and have been running it almost a year now. Along the way multiple upgrades have been made but I still only have a small solar array and with the summer time over and more grey days it's becoming more common that I need to put in some...

Last week I bought a silent air compressor for some planned air brushing of 3D printed objects and for cleaning the dust off my tools after using them. The "silent" just means it claims to produce only 59 dB while it's on though....so it's still making quite some noise but not so much you need...

While the default Victron dashboard is really awesome and can show lot's of statistics....sometimes I just want to see how much whats a particular solar panel group is doing. And how many amps are actually in and out that specific MPPT...but also compare that to the others. (I have 4 active...

Charging my 88Ah from 0% -> 100% Soc (it was an accident :ROFLMAO:) took me nearly 16-20 hours using a 12V 5A victron bluesmart charger. Now that I have got a new 100Ah battery to replace my DIY 88Ah (that's 11 x 8Ah 12V batteries with their own BMS) I also wanted a better charging solution for...

I have a self build battery bank with 11 8Ah LiFePO4 batteries which should be a total capacity of 88Ah. Right? I have been using this battery for a little over a month now and besides the small capacity I am really happy with it. It's charged from solar 98% of the time and if it get's to low I...

I know fuses are important to protect wires and other components. I am in the process of building a larger 6 x 8Ah battery bank of this battery from amazon. (link to UK description because the NL listing is in dutch ;) ) From what the specs of this battery and it's internal BMS say it's allowed...

Because of the price and small formfactor I have got a few Eco-Worthy 12V 8Ah LiFePO4 batteries from Amazon. Here is the listing on Amazon UK for the same battery since I got it in NL and all text is in dutch there. ;) I have a Victron BlueSmart 5A charger and it charges the battery just fine...

My solar panels are wired in parallel and rated for 12V, but actually give more like 17-24 volts on most days. For various reasons I do not want to connect them in series so this is the voltage I have to work with. Mostly because of the various shadows during the day on the balcony where the...

My setup is small and experimental for multiple reasons but it's mostly for fun and learning. I have 3 x 30 watt and 2 x 10 watt panels all connected in parallel at the moment. The reason for the smaller panels is to catch the last hour or two of the sun before it goes over the building. They...

This might be a really stupid idea....which is why I am asking here if it makes sense.;) Last week I finally installed a victron smart shunt into my solar setup. It's an experimental toy at the moment only used to charge USB powerbanks....which I use to recharge my phones/tablets when it's...

This might be a stupid beginners question, or not even an issue at all....but I have to ask anyway. Let's assume the batteries are fully charged by solar and the SolarChargeController is in Float and only a few watts are produced. Also assume it's a very sunny day without any clouds and 100%...

Now I have already spend way more on my solar project than I planned for I just want to make the best of it. It's a tiny system that is not permanently installed yet. I have a victron MPPT, 2x 12V 7.2Ah SLA batteries (going to be in parallel), and a bunch of panels: - 3 x 10 watt poly - 2 x 10...

I have only been playing with solar for about 3-4 weeks now, but from my understanding a mono crystalline panel always has that square with cut corners look. It reminds me of how the paper and books in battlestar galactica looks like. :D Now I have noticed that my relatively cheap 10 watt panels...

I have an experimental setup to try the different solar electrical components before I invest in a permanent installation. (see here for a bit more info on what I have) The common recomendation is to prevent discharging an SLA battery below 50-80% but I am having trouble to determine when and...

Just starting with solar and I got a tiny setup with 2 x 10 watt panels and a single 7.2Ah 12v SLA. Since I did not have any black/red wires that I felt were safe enough with the currents of solar stuff I used a speaker wire that has a single red line on one of it's conductors. The rest is...

I am just starting and still learning about solar power and everything related to it. Because of budget and space limitations I only have a relatively small experimental setup: - 3 x 10 Watt panels - Victron MPPT 75/15 - Victron SmartShunt - 2 x Kung Long 12v SLA 7.2Ah. (WP7.2-12) Yeah, the...