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Do you need both DC Circuit Breaker and T-Fuse? From the Mangum manual (below), it sounds like you can get away with the DC Breaker with Overcurrent protection device. Could someone confirm? T-Fuse are hard to find these days. " For safety and to comply with electrical code regulations, you...

Sol-ark could do AC Coupling. Might be able to do batteryless too. Haven't read the new manual. Magnum PAE series - not as fancy as the newer hybrid but it could do the job.

Any 100 to 200 watts panels are plenty to charge the 50ah battery if you have 4 to 5 hours of daily sun. More watts charge faster.

I would said go with the two of the 150A BMS' from JBD/Overkills style. One BMS for each 4S batteries and parallels them for redundancy.

You should direct message him. or do the @Michael B Caro to get his attention. I had ordered the first batch from Michael last year. . He seems to be still active in the forums.

The all-in-one unit like the GroWatts is simple... (it has UPS mode like how you wanted. It has charger from AC or Solar. Or use Solar energy first or Street power..etc.) 1. Energy audit on how much power the reef tank uses - like a Kill-A-Watt meter 2. Size the battery from the energy audit on...

I do have a shunt for monitor. Hope to see 280ah on full discharge/disconnect by BMS or inverter. We will find out in a few days. Thanks.

Hooked up the inverter to test. The started voltage at 14.1v and quickly dropped to 13.3v. It that how it behavior? Cell 1. 3.337 2. 3.335 3. 3.334 4. 3.336 Different of 0.003v. I guess they do need to discharge that top voltages fast. Doing a slow 8amp discharge test.

Please disregard my question. Found the info in "Overkill Solar BMS manual" " 3.2.2 Cycle Capacity This parameter is used to calculate state of charge. In the real world, batteries do not meet the designed capacity printed on the cells. It can be higher, if the cell was underrated, or it can...

Finally finished hookup the 4S 12V 280AH EVE batteries. I see the voltage dropped: 1. 3.526 2. 3.509 3. 3.518 4. 3.523 Voltage diff: 0.017v according to the XiaoXiang BMS app. Cell #2 seems to be discharge faster from the first Top balanced of 3.61v. Thanks.

I top balanced the 4 EVE 280ah cells to 3.61vs and let it parallel for 3 days. Day 1 at 3.61, Day 2 at 3.571, Day 3 at 3.541v. Will it continue to drop to 3.5v or 3.4v? I plan to put the BMS on and let it be. All cells measured exactly the same or maybe off by 0.001v or so. I guess LiFePo4...

Hi, I have a question about one charge controller to charge two 24v battery banks with BMS. Do I hook both battery banks to the command bus bars (positive and negative) and then the one charge controller to it? What if the one bank finished early and the other bank still taking charge? or...

Hi, I am trying to locate the spec of this popular battery monitor shunt terminal lug size. I haven't purchase it yet because I am in the planning stage. I searched the web, web videos, manuals, read comments, none state which size lug to use. If someone has it and could share the terminal...

Plan to max 167amp for a 24v @ 4000w system. (maybe max 200amp?) The manual recommend 4/0 awg wires for the DC battery bank and over current device protections. Also plan to use two BMSs for two 24v 8 cells banks (2P8S). I only have one BMS 24v 100amp so far due to the shortage. So, I plan...

I want to see if I could combine (2) 1/0 awg wires in parallel and not using 4/0 wires. The reason is I have plenty of 1/0 awg copper wires and want to avoid buying 4/0 awg wires. I plan to use it in the 24v system with the EVE 280 batteries. I see the 1/0 awg could handle it if you look at...

New here with EVE 280. I am in a rush to put 4 EVE 280 Cells in service without BMS. It seems like everywhere is out of stock for 4S BMS due to a rush of 275a/280a orders by everyone here. I will top balance the 4 cells to 3.65v in parallel and then series them. Plan to hook it up to a 12V @...

Search youtube. There is a new guy testing solar with it running Air Conditioner batteryless mode with many panels.

Congrats! Love new toys. Which vendor you ordered from?

It comes down to panel being shaded or not. Total powers will be the same. 2P2S : A(1+2) B(3+4) Parallel AB The above case, any shades on 1 and 2, the output be to the lowest current of the shaded panel. Thus, lower power for the string. 2S2P: A( 1 2 Parallel) B(3 4 Parallel) Series AB...

Series to increase voltage. Parallel to increase amperage. Wattage=Voltage X Amperage. You can play around the panels you have to have it near the max solar charge controller amp/voltage.

Are you using three Overkill BMSs for the 8s3P? That could explained the no voltage dip. Or was just one 123smartbms 3p8s not enough amperage?

The new Enphase IQ Envoy has a consumption CTs and it can curtail the Enphase IQ series to no export to the grid.

Here is another more technical reviewer by mjlorton from his bench of testing equipment with discharge data: Results: it is up to spec and he is happy with it.

Sounds like this forum's notifications is similar to FB.

Try Gmail like Will said. It will give you portability when you decide to move from the sbcglobal or att's internet provider accounts. Once you leave them, there is no way to keep their email address.

From Will's past posts: https://diysolarforum.com/threads/diy-solar-power-forum-software.1408/post-11972

You need to be code compliance to feed to the grid. This vendor PluginSolar does the 120v for N.A. with their micro inverters. https://www.amazon.com/dp/B008AQS4AY/ref=as_sl_pc_ss_til?tag=pluginsolar-20&linkCode=w00&linkId=HOKO2HCRSOOJ5ACJ&creativeASIN=B008AQS4AY I haven't see any 120v micro...

http://nordkyndesign.com/assembling-a-lithium-iron-phosphate-marine-house-bank/ here are some references materials for you.

8s will be 24Volt. If you have 12v inverter and bms already, use the 11 22 33 44 setup will give 12v.

Oversize should be okay as long you plan out the voltage range per string or mppt inputs. Also check the existing wires if it could meet the requirements. Check the feed panel breaker on the main panel to see if the high wattage exports will be okay with the local code. Currently 2000W export...

You will be fine. Just beef up on the wire size for at least 216 amps per the 2600w@12v inverter you have and the BMS wires.

you meant using one 250amp BMS with 4S2P configuration? Is the inverter 12V? It is doable if that's what you want. Normally, once you have so much power pass 2000Watts, it is recommended to go 24V @ 2000 Watts. 4S2P looks like this with one 250amp BMS: 11 22 33 44 (One bank, 4 series with...

What inverter do you plan to use? Sounds like 12V inverter type? The math works out 2560W per 4S configuration @ 12v. 2560x2 (Banks) = 5120W max watts. You have plenty of power to run the microwave. You can parallel them into the 12V inverter and each battery bank could draw max up to 150...

Just did some quick specs on your existing system on the KC 130 -- VoC 21.9 and Isc 8.02a. You definitely would need to rewiring it meet the newer DC input higher voltage grid tie inverters by taking 10 panels in series to make it 200 VDC and do the same for the other 10 panels. Parallel them...

The promotions are back for 2 Lion Energy UT1300 for 1399 USD. And 2 UT700 for 730 USD. Expired 9/13/2020. Costco membership required.