diy solar

diy solar

Most reacted posts

  • Post in thread: Lion Energy Safari UT 1300 - $699 @ Costco

    I just got a shipping notice and 4 tracking numbers, so it looks like it's still on. Free shipping, but tax (as you would expect).
  • Post in thread: EG4 3000 EHV-48 fire. Been running a 12 panel system with 2 EG4-lifepower batteries and the EG4 3000 EHV-48. Added the battery rack and 3rd battery

    So what'd you change in the setup after you replaced the EG4? Installing the same unit in the same setup wouldn't really give me confidence. Can you run inline fuses on the +/- leads to the battery? Maybe MRBF style fuses?
  • Post in thread: Lifepo4 + Hot Van

    Old thread, but tint all your windows, windshield included. Most of the heat input into car/vans will be through the windows, especially if you have the roof covered in panels already. A 70-80% VLT ceramic tint is almost invisible and will cut down on UV and IR ingress dramatically. Darker will...
  • Post in thread: Renogy inverter remote switch

    Anyone probe these pins to find if it's just a regular SPST switch? It's such a big panel for limited functionality, would rather just incorporate it into a larger multi-switch panel.
  • Post in thread: 50A RV - Victron Multiplus II 2x120 vs ?

    You wouldn't be the first to quote that number, and you won't be the last, but it's a PEAK number. The real numbers are available if you dig past the the marketing smokescreen. https://www.victronenergy.com/upload/documents/Output-rating-operating-temperature-and-efficiency.pdf
  • Post in thread: Pretty much the reason why for all things Lithium on an RV.

    This is great data. Any more details on the loads you are running? I was hoping to have similar performance in my setup, but have invested much less in panels (mostly due to space limitations). Either my expectations for load are way undersized, or I am overly ambitious about solar performance...
  • Post in thread: wires are melting

    Not sure where the OP is or what his situation might be, but a fair bit of their content out on social media is targeted for farmers and such, to provide off-grid or stable power to areas with unstable grids. They obviously show you the glitzy setup, but you can imagine there's quite a few who...
  • Post in thread: Hammer crimp 2/0 AWG

    I prefer the hydraulic crimper as well, both for ease of use and it's versatility.
  • Post in thread: wires are melting

    Not sure anyone outside the US knows about AWG (it's a dumb system to begin with, like nearly all our measurement systems). ROW goes by cross sectional diameter in mm.
  • Post in thread: Renogy DC DC Charger w/ MPPT

    No you can't, the SCC was only designed to handle 12v panels. They specify 25v maximum.
  • Post in thread: 12V / 3000W All In One Inverter?

    Funny, I've been on the hunt as well. I have a rooftop AC that's 12v, so trying to stick to 12v and not add more components, as I've been struggling to cleanly map out all the specific components, and an AIO seems like a much cleaner solution. MPP Solar advertises this, I haven't found any...
  • Post in thread: Roypow® Battery Review?

    Bumping this back up since Will just posted a video. His teardown seemed very positive.
  • Post in thread: Alternatives to Battle Born

    ...or that they're banking on the fact that people will have sold/replaced their 10 year old technology with something newer. ...or that they're banking on the fact that people don't measure their capacity regularly. ...or that they plan to not exist in it's current shape in 10 years, whether...
  • Post in thread: alt AC - server rack cooler?

    If you get a large enough cooler, it'll look like a reefer van.
  • Post in thread: 1kW array only getting 400W

    How are you combining them in parallel? Are you using MC4 branch connectors? Can you test the branch connector before installing? Do you have a hall effect ammeter? Can you measure current output of each section? Do you have enough wire to handle the output post-parallel?
  • Post in thread: Renogy DC DC Charger w/ MPPT

    I have a BT-2 but haven't plugged it in yet.
  • Post in thread: Renogy DCC50S firstimer

    Watch Will's test video, he goes through the scenarios. It's 50A from the alternator until there's voltage at the PV input and then it drops to 25.
  • Post in thread: Inverter and shore charger

    Those power supplies are built like PC power supplies, i.e. you can't pull all 40A on one bus. I could be wrong though. Progressive Dynamics makes a 24v charger, but it's not exactly cheap. https://www.progressivedyn.com/specialty/pd9240-24a-volt-power-converterbattery-charger/
  • Post in thread: Renogy DC DC Charger w/ MPPT

    So I did a little research on charging profiles, let me know if anyone disagrees. I have dual AGMs for starter batteries, and found this info on AGMs from two different sources: https://batteryuniversity.com/learn/article/absorbent_glass_mat_agm 6 cells x 2.4v = 14.4v 6 cells x 2.25v = 13.5v...
  • Post in thread: Lion Energy Safari UT 1300 - $699 @ Costco

    Yeah, only lasted a few weeks. They pulled down everything afterwards. Looks like they did something similar last November, so if you're not in a hurry, they might pop back up.
  • Post in thread: Limiting SoC for longevity?

    Anyone have a good method to limiting SoC? I've oversized my system by about 20%, and was thinking of invest that oversizing towards longevity, by not charging to 100% each time. This is on an RV/van, I have all three methods of charging, solar, alternator, and shore/generator. I'm planning on...
  • Post in thread: alt AC - server rack cooler?

    I didn't watch the video, but 2000 BTU is probably okay to keep your cat from dying, but with two humans, I doubt it even makes a dent.
  • Post in thread: Favorite 12v/120v fuse/breaker panel?

    In the past, I've used a Progressive Dynamics mixed 12v/120v breaker panel, but I've decided that for this build, I will be not be using in-built 120v charger unit, there might be some other options? Anything worth looking at? Maybe something that doesn't look it it came straight out of the...
  • Post in thread: Lion Energy Safari UT 1300 - $699 @ Costco

    So you jumped to a whole bunch of conclusions on what you feel, not on any empirical data. Got it. Why would you not believe them when they say it will buck a 14.6v down to 13.9v? That's what makes it "drop-in" capable.
  • Post in thread: Limiting SoC for longevity?

    I believe the stated 3,000 charge cycles is at optimal conditions, the reality is I'm unable to control the temperature to a great degree, since I don't have enough solar capacity to actively cool the storage area at all times. I can control the storage SoC though. @Will Prowse made a video...
  • Post in thread: Lion Energy Safari UT 1300 - $699 @ Costco

    Have you tried disconnecting all your loads before measuring the voltage? Some reading: https://www.solacity.com/how-to-keep-lifepo4-lithium-ion-batteries-happy/
  • Post in thread: anyone doing dual battery bank ?

    Probably is most used like a reserve on old motorcycles. Once you drain down your main tank, you have a known quantity of fuel (or power) left.
  • Post in thread: Renogy DC DC Charger w/ MPPT

    @Digital DIY Make sure you thoroughly inspect them before your return period is over. I ordered a pair of Grape 180w panels, and they really lack on quality control and final assembly. Not impressed. I returned them, picked up a pair of Newpowas and the difference is night and day. Would've...
  • Post in thread: New batteries

    Configuration is neat, seems like the single bus bar between the top and bottom cells would be limiting though.
  • Post in thread: NMEA2000/SAE J1939 protocols and sensors/displays

    Ah interesting. I did not know about Xanbus. Since there's a "NMEA2000 add-on card" for the Xantrex Marine line, maybe you can do something similar w/ their other units. That said, while I am not attached to NMEA2000, it does look like there are some off the shelf display units that you could...
Back
Top