Post Battery Bank and Inverter! (pictures only)

[MarkJoseph]

 

[MarkJoseph]

 

[qcda1]

Let's try this out. Take a quick picture or 5 of your current battery and system and share it here!

• Let's keep all posts focused on pictures only!
  
  
• If you like a system, give it a thumbs up but don't reply!

Let's see if we can pull this off!

Need to clean up some of the wiring. Most of it is inter-device communication links.
Pretty much all my devices are monitored by a Raspberry Pi which provide the following dashboards.

 

[eljefino]

Noob saying hi!

Got an off-grid cabin in dark-sky Maine back in fall of 2022, been fixing it up ever since.

Was originally a hunting cabin and got a professionally (for the 1990s to very early 2000s IMO) solar system put in with Outback inverter & charge controller. Original owner sold it to a neglectful stoner who re-cobbled everything and eventually just hooked up a Honda EU3000i generator to run 24/7. He went through a divorce and my wife and I bought the place to hide from the world on weekends and whatnot.

Bought 4x $80 walmart deep cycle/ boat trolling batteries and the system fired right up! Got rid of the busted panels and some that flipped over into the shrubbery and make about 900 watts peak. Am now upgrading to lithium-- we were broke in 2022 after having bought the place and the tech just wasn't quite there for us yet then. The lead-acid will maintain the fridge all night long but kind of chokes on the coffee maker at 0800 so it's the next improvement item.

I HAVE GONE THROUGH AND FIXED THE SKETCHIEST STUFF so don't need advice there. Pictures are as-purchased. Joined this forum to expand my horizons.

 

[Avoirdupois]

2 Delta pros with 4kw solar array each, with 2 batteries each, hooked to smart home panel 1

 

[trebeaux]

 

[Hedges]

SMA Sunny Island 6048US-10, 16s CATL 228 Ah (4x 4s modules), JK PB2A16S20P BMS (closed loop)
4 awg THHN battery wires, 12 awg UF AC to an outlet.
Pink Poly bubble wrap insulation between BMS and possibly exposed battery terminals.
Deployed as UPS for my sister's freezers during PG&E scheduled outage (in case longer than anticipated).

 

[Popals]

 

[GregM]

All done fixing on the solar system.
New Ruixu battery box and additional batteries.
Fully off grid now.

 

[Solar Tech]

7 pw 3 for a customer



My battery pack 140KWH



My offgrid carport
Tesla model 3 60kwh battery
solis s6 11.4 kw HV inverter
14.76kw pv

Another customer install

Another customer
Another customer

 

[jshannon]

Sungold 24v 3K and 2 100a

 

[Ramses]

3x Multiplus II 15000VA + 5 x (6 now) 16 kWh DIY batteries (MB31, 314Ah EVE Cells) with JK BMS v19.

 

[OhYou_]

Inverters are bloat

 

[Aluda]

Fast charging of Lithium from a car generator. The main goal of the battery project is a fast charging of Lithium from a car generator. How fast? As fast as it can give with its declared power of 100A. And so that the generator does not pour out blue smoke. What is all this for? The desire for creativity, since I did not find anything similar on sale or in stores. What I have:
1. A source of energy for a car refrigerator. Autonomous heater.
2. A source of energy for charging the lead of the starter battery. Charging the starter battery on short trips, 5-10 minutes.
3. No finger movements of my hands to jerk the connectors to switch the charge-discharge.
4. The price of the battery should not be more expensive than a mobile refrigerator, with the ability to store ice cream until tomorrow.
5. Forced ventilation for cooling.
6. Protection against overcurrent, overheating, temperature control.

 

[100kwh-hunter]

Stil a work in progress, but 300kw is connected, started testing today a other bank.
Designed for 500kw storage.
12kwh for the house max, one extra will be added next year for ev, also 12kwh max

 

[Flunkyboi]

My brother and I were finally able get my second build up and running on his equipment barn. He is excited to finally have power available out there. Right now, we only have 1600w of PV array on the roof. Here's rack #1 and his control/storage panel.

 

[NordicNerd]

Small 24V - 5kW system for off grid. Will be expanding over the coming years. Batteries stay at about 10 Celsius when it's about -5 degrees outside. PV disconnect outside not shown. Will need a battery box heater if I stay out longer than end of October.

 

[pdp8]

Hand-truck build with EcoFlow battery and SunGold AIO. I don't yet have a high enough voltage array to activate the AIO's MTTP, so I also have a 45 amp Anderson Powerpole connector for attaching a Renogy boost charger across the battery. I have also used it to dump DC power into my EcoFlow Delta 3 Pro.

8 gauge cable going to the outlet box. I had bought 10' and my original plan was to cut it length and mount the outlet box, but I decided to keep it all, allowing me to "run" the outlet box elsewhere if I want.

I do wish I went with a 20 amp plug for the input (though that is easy enough to fix).

I also wish I had a bit more room between the battery and the AIO, though right now the AIO is as high as it can go given my mounting method (mounted to low profile unistrut, which in turn is mounted to the hand truck using u-bolts). I could fix this by drilling into the frame and/or switching to some kind of backing board, but connecting the battery cables to the AIO was such a pain, I am hesitant to mess with it.

Eventually I will add a DC shutoff (likely a 2P 25 Amp DC breaker) for the MTTP input.

 

[OhYou_]

Only half of it is in use, waiting for a different bms solution to show up, these heltec units are garbage.
45+45ah 120v 800A continuous when done

 

[Ozark Tinkering]

Fed from 11kW ground mount. Off-grid only.

 

[james11]

 

[Haysdb]

“Combiner Box” on the left with PV protection, an ATS which uses the grid as “backup” and a 2000 watt grid connected power supply for charging batteries on cloudy days while keeping the inverter off grid for stable voltage. “AC Box” on the right with main grid disconnect, load, and a separate breaker for the inverter, with a relay and a contactor for connecting/disconnecting the grid. To the right of the inverter is “5v” for ESP32s, relays, a Raspi running Solar Assistant, and a Nano router with a 4-port Ethernet hub. To the left of the inverter is a busbar and 250A breaker for the batteries.

10 kW Deye inverter
12.65 kW of solar
32 kWh of Seplos batteries

 

[doctron]

Still under assembly
View attachment 231665View attachment 231666

Update or work completion pics?

 

[XeonPony]

Old System:



1.8Kw Modified Sine wave



It blowd up in 2020.

New System





18 Kw Lithium at 48V (58.2V full)

 

[zcskywire2]

Update or work completion pics?

This is with the cover fully off fuse out, a few cables not connected. There's a large fiberglass lid that goes on the red fiberglass rails and then a hard plastic lid on top of that.