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Hello All, I was one of the early purchasers of the 280ah EVE cells from Amy and one of the cells has malfunctioned already. Do these things have a warranty? How can I reach Amy now days? Is she the one in Houston now? About the bad cell, it has swollen tremendously and will not take a...

I have a weak cell in one of the lead acid forklift batteries on one of my DC Solar trailers. One of the members here has used and recommended this HindlePower Single Cell Charger to individually charge the weak cell in hopes of bringing it inline with the other cells. He has reported good...

I need help figuring out what to use to isolate my PV arrays from my PV inverters whenever necessary. I have 6 strings which are near 600 volts each. I'm not paralelling them, so I will have 6 strings in and 6 strings out. What should/could I use are a disconnect? I've done searches and having...

I purchased 30 used Sunpower E-Series Commercial Solar Panels E20-435-COM from ebay and they are advertisted to be working at 98% of out of the box capacity. However, when I tested several of them today in clear, direct sunlight, I'm only getting 80-85% of the rated 435w output. Did I get ripped...

Most all of the junction boxes I'm finding are empty except this one. If I was to instead buy this one, what goes inside of it? And where do I find it?

Anybody know where I can find these rail mounted junction boxes shown in this video? I've googled my butt off and I still can't find them.

I've been researching how to AC Couple my Sunny Boy inverters to my Sunny Island inverters in an Off Grid configuration. I've read in the SMA manual that they are supposted to connect to the protected loads panel where the Sunny Islands are also connected. However, it instructs you to connect...

This is for a totally offgrid system. I have two of the H model DC Solar trailers which have two SMA 6048 inverters each and one Midnite Solar 250 each. Each trailer also has 10 - 265w solar panels and 2 520ah forklift battery. I'm in Louisiana and get very few clear days so solar generation is...

Ok, I own a couple industrial strength solar generator trailers with 2 massive 510ah forklift batteries each. They use SMA 6048 inverters with temp sensors and are programmable for low and high voltage disconnect. So do I need any additional BMS hardware? I know the existing sensors are designed...

I have read the manual and verified my connections, but for some reason my BMS is not reading my cell voltages correctly. It’s reading one cell as over voltage, and another cell as under voltage. As such, it is not allowing charging or discharging. Is it defective, or am I doing something...

Hello All, I'm researching the possibility building a solar powered cell signal booster as coverage sucks in my area and was tring to determine just what I need to buy. The signal booster is 12v, and so is the battery, and the panel is 17v, so do I really need a charge controller? I don't mind...

This is an online auction going on for over 100+ MOBILE SOLAR GENERATORS. I've been thinking about building one but I might be able to buy one at this auction cheaper than I can build it. The only problem is...it's in Las Vegas and I'm in Atlanta. But if I get one cheap enough, I should be able...

I just ordered some LiFePO4 cells off Alibaba, and I now see that my current charger, a Progressive Dynamics PD9245CV, only charges up to 13.6 volts. Can I use my current charger? How much capacity will I be leaving untapped? And if I purchase a 14.6 volt charger, do I need to wire it directly...

I would like to build a custom case for the cells I just purchased. Do anyone know where I can get flat terminals like those in this case?

Ok, Will says he was only able to get 3.2kw out of the Tesla battery because of the odd voltages and the inverter shutting down before the battery was below 25%. So four 12v 100ah batteries have a higher capacity (4.8kwh) than is available from the one tesla module. Now if you buy Battle Born...

I have a small Winnebago Rialta with a 3000w inverter generator and a Coleman 9200 BTU ac. It will also hold 2 group 27 batteries. I know a gentleman who has the same RV who said he can run his 15K BTU AC for 4-5 hours off 4 100ah Battle Born batteries. That got me thinking... I’ve been pulling...

Found this on eBay. Almost ordered. Too good to be true?

I want to build a mobile solar genenator on a trailer similar to this or this. I hope to use 6 300w+ solar panels, use 2 tesla 5.3kw or 4 BYD 4kw batteries, and a MPP Solar LV 5048 All in One. If the MPP 5048 is insuffienct, please let me know why and suggest an option. I'm trying to keep the...

Hello Everyone! I'm new here and new to solar but a quick study and I know what I want. I want to create a solar generator that I can charge during the day and use to run the AC in my small RV at night. It's a 9200 btu AC. Will I be able to do this with a 5.2kw Tesla module and 1200 watts of...