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Anyone have any feedback on the new Samlex EVO 4248 split phase inverter? I have an off-grid residential application with 2.1 kw of panels. This inverter is UL approved so it will pass inspection. My concern is that it appears to only be able to charge the batteries from AC OR invert power...

Thanks for your reply. All cables are 4 gage, about the same length. The cylindrical cell batteries and prismatic cell batteries are wired in series with each type (2x12V) so there is an additional connection with a jumper between batteries. All are 100 AH batteries. I am surprised at the...

Our off grid solar system has 3 different types of LFP batteries. When measuring the current from each battery during load I noticed differences depending on battery type. The pouch cell batteries show the most current, the cylindrical cell batteries show about half, and the prismatic cell...

Please confirm what is meant by different chemistries. Are we talking about pouch vs. cylindrical vs. prismatic cells? Do you need to have all your batteries from the same supplier (running in parallel)? Will had a video last year (Frankenstien LFP Battery April 4 2020) that had a BYD from...

I currently have 2 LFP 100 Ahr 12V batteries (cylindrical type) in series - brand A, 2 LFP 95 Ahr 24V batteries (pouch type) brand-B, and 2 LFP 120 Ahr 24V (pouch type) brand-B with each hooked up in parallel supporting a 24V inverter. 2 questions: 1) can I add a LFP 24V 200 Ahr battery...

150V max on the SCC (Victron 150/85). Need to add strings if I want more power. Limited to 8 ga welding wire out of the combiner box so max current acceptable is around 40 amps. Looks like I will have to upgrade to a 250V SCC or get a all-in-one that will take the higher voltage.

3 panels in series, 2 strings. VOC 40.1V MPPT input typically 100-110V So doubling the battery/CC output voltage will only result in having to go to a voltage over 48V on the panels before the CC can harvest power. The current from the panels into the CC will not change, just the output...

Currently running 1900W solar with a 24V battery bank. If I switch to 48V will the voltage upstream of the charge controller also increase? Will this drop the current flow from my panels to the charge controller? Using a combiner for the 2 strings of 3 panels.

Can the PV system be grounded to the main electrical ground outside the house or does it have to have it's own ground? Midnite Solar says all PV systems must have DC-GSP in the loop prior to the SCC. Is that true for all PV systems or only those running 125V+? Looking at "24"V panels, 3 in...

The battery you are looking at uses brand new cells from A123. I have purchased one of these and will get back to you once it is installed.

Looking to add brand X 24v LFP battery to current brand Y 24v LFP battery bank. What do I have to do to be sure there is no current surge when I add the new battery? How much current flow is OK (6 AWG cables)? The new battery has a 135A breaker on it.

Currently running a 24V battery bank with LFP 12V batteries in series. Can I tap into 1 battery and get 12V without messing up the State Of Charge of the system? What will the charge controller do if I pull 12V while charging at 24V? I can put the batteries in parallel to get 12V but that is...

Anyone have experience with Spartan Power inverters?. They don't appear to have settings for LFP batteries. Don't know if that is a concern. The charger also seems to kick in to charge the batteries at too low a voltage (21 V). Looking at the 24 volt model.

New panels: Vmp 33.14 Voc 40.10 Imp 9.202 Isc 9.664 These panels together (3x) will well exceed the capabilities of the SCC so I cannot use them on sunny days. The question is can I use them on cloudy days when solar flux is much lower in order to keep the PV power higher. When sunny...

Victron 100/30 (limit 400w for 12V) 3 100W panels in series - cloudy day power of 12W Expanded array to include 2 or 3x 310w panels in place of 3x 100.

At our location there are a lot of cloudy days which result in very low power from the PV array. Is it possible to use an oversized PV array for these conditions? I understand you don't want the charge controller to have to handle more voltage that it is sized for. But if the solar input is...

Most 1500 to 2000 watt 12V inverters have upper voltage limits based on traditional lead acid batteries. Are there units you can recommend that will allow 14.5+ volts from a LFP battery? Looking to keep the cost under $400.

Looking for: Pure Sine Wave 120V Inverter only around $400

Looking to upgrade to 24V inverter for an off grid system. Need a cost effective solution for 2000W. Giandel no longer makes the previously recommended configuration. Thoughts?

If the battery manufacturer recommends 50A max charge rate and I set up the batteries in series then I should set the charge controller for 50A? If I set them up in parallel do I set the charge controller to 100A because the current will be split?

Built a frame for my Renogy 100W panels using kiln dried 2x4s. Attached the panels with Renogy mounting hardware (bases screwed into 2x4). Took the panels off and stained the wood frame. When I put the panels back on the holes did not line up. Can I use wood for a frame or will it...

Great info. Did you buy the Schneider MPPT and Inverter prewired or build it yourself? I'm thinking along the same lines because I want to be able to manage the the battery charging from AC if solar does not provide enough on snowy/cloudy days. Right now I have a subpanel that I plug my...

Thanks for the info. Will's video said they had a 65A breaker. If so, what is the best size wire to run to the inverter? How much is the nominal draw (their specs say max discharge is 350A)?

Anyone have any experiece with how the BYD reconditioned powerwall batteries hold up? I know they are used but what lifespan should I expect?

Sorry, typo. Boulder 100 by Goal Zero. 100 W with a singe 8mm connector. Trying to figure out if it is possible to connect in series.

Why does the Bolder 100 panel say max system voltage of 30 volts? What does that mean?

Should the number of panels based on charge controller capacity be calculated by VOC and Amp Short Circuit values for a given panel? Do parallel strings have to have the same voltage? What do you do if you can't get the same panels when adding capacity?

During reviews of charge controllers I noticed that on some models made by Victron you can change the current output settings to lower the amp output (run a 100/50 and lower the amps to 30 for a Yeti power station). Does anyone have any experience with this? Does it damage the charge...

Ah! that's why we are in the beginners corner. The back panel on the Bolder 100 says 30V max system voltage. The Renogy panels says max system voltage 600V. I assume the design of the electronics on the back if the panels are different therefore different performance specifications. I think...

Project abandoned. Bolder 100 has a max rating of 30V so series linking will not work (17.2 volts x 2 panels = 34 V). Going to buy some more Renogy 100 panels that spec out at 600V.

Currently using a Yeti 1000. The new Yeti X series 1500 (and up) will allow 50V input to the MPPT controller. If I can figure this out I may upgrade to the X series and add the Yeti link hooked to a LFP battery. The option to use the MPPT on the front panel of the Yeti is still desirable...

Has anyone tried to connect GZ Bolder 100 panels in series to boost the voltage? What kind of adaptors are required? What is the pinout on the GZ 8mm connectors? I would like to use this configuration to charge the Yeti though a Vitron charge controller.