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I have never bought anything from Alibaba, so I guess I'm missing something. While looking for att the Luyuan battery page, I came across this item: Assembled Battery So what's the Catch? Is it like $1000 shipping or what?

I haven't traditionally been a fan of lithium batteries as off grid storage simply due to the relative "newness" of the technology. Also because of local availability of lead batteries if I need a quick replacement. But I do like the deep discharge and high capacity of these newer cells and so...

Just crossed the 1 megawatt-hour mark this morning on the Victron MPPT RS 450/200. Glad I got here when I did else I would have missed it. That is all.

I'm getting ready for a 6 kW PV system on my off grid property. I have a MSB 60 amp SCC on the existing system and it has performed fine. That system will remain alongside the new system. Looking at SCCs, I saw that MSB has a 6.6 kW AIO that can output 120 amps of charge current and has a 500...

I just started up a system with a Victron SmartSolar MPPT RS 450/200 SCC. I noticed today that, depending on which order I turn the arrays on, one of the MPPT inputs will produce 0 watts. Electrically everything is good. The unit even sees the array voltage but isn't outputting. If I shut the...

This answer is probably in the manuals somewhere, but I'm not there yet. I know you guys will probably know right away. I have a Victron 450/200 SmartSolar MPPT charge controller, Cerbo GX, and a SmartShunt to measure energy consumed by the non-Victron inverter. I presume that the MPPT will keep...

Pretty self-explanatory. Does anyone know of an MC4 connectors that mounts to a blank bell box cover, for example?

I am assembling an off grid system based around a couple of big FLA batteries. It's a Frankenstein system, so as yet I have no way of monitoring total energy production or consumption. All the off-the-shelf systems like Victron have this, but is there a generic solution I can incorporate into...

I have been tasked to design-build a 100% off grid system for a friend. We just took delivery of the panels and batteries this week. There are 40 x 435 watt panels, totalling 17400 watts. Two 24-85-27 GB forklift batteries provide storage at 1741 AH at the 20 hour rate. This is a big building...

This is a follow up to my post in the newb forum. The battery is a 24-125-13, rated 1182 AH at the 20 hour rate. My concern was that I wouldn't be able to push enough amps into with my 6 kW solar array. Question is, if I only ever discharge to 50%, how important is the charging current? So...

Hello! First post and relatively new to DIY solar. I've installed solar in the field but all grid-tied. Off grid battery systems I have only every done small >1 kW. So this is new territory for me. Through a job, I have acquired a new 24-125-13 FLA forklift battery and 6 kW of PV. This is for...