Add additional Pylontech batteries to an existing battery bank

[@vinosubramoney2519]

Thank you .Explanation was easy to follow. I currently have 2x pylon tech us 3000 and am in the processing of installing a 3000c.

[@TeamYankee2]

Thanks for this... I have a system going in April 2023 - going add a second battery myself.. It couldn't be easier!

[@shuhel02]

Get yourself a nice rack mountable unit to house these expensive batteries. Great video, thanks!

[@zaydshouse1373]

Hi Skyline, thanks for the feedback. Agreed - going to get a nice 4 battery cabinet so I have room to expand.

[@РЕЧІдоРЕЧІ-э4с]

Please tell me how DIP switches should be installed on Pylontech batteries if they are combined into a group of two or more? Thank you

[@seweryndudek3124]

Hello i get 2 3000c i have problem with connection with inverter. Wath positions ADD should be on master battery and second one?

[@Visionery1]

Great video, Zayd, thank you!

[@zaydshouse1373]

Glad you found it useful

[@sokusziu]

Hi Zayd thanks for you video. We have added 3 more batteries to our LuzPower Invertor. Do you know how to make them show on the LuxPower app? Thanks

[@paulcoates208]

Does the inverter automatically pick up and adjust its settings for the new battery? As in, does it know the battery storage is now 10kwh and not 5kwh from here on?

[@zaydshouse1373]

Depends on the inverter. The inverter generally reads the battery voltage. The voltage remains the same but the voltage drops more slowly due to the added capacity. You do however need to look at your charge settings. You should double your charge amperage. Nominal charging rate is C/2 where C is the capacity of the battery. These batteries are 74A each so max charge current should not exceed 37A for one battery and 74A for two batteries

[@paulcoates208]

Thanks. Can you tell me, is it necessary to switch off the inverter when installing the 2nd battery or can I just trip the breaker between the inverter and the batteries?

[@jonerasmus9399]

I liked your video but was disappointed that that there no mention of how to use the dip switches when adding more batteries . Can anyone help explain what to do with dip switches when adding more batteries

[@AnthonyFrancisJones]

Yes, I was thinking that. I am having real problems with this but it seems to be set the first dip switch to on on the master battery so it is at the correct baud rate for the inverter (if 9600B/s) and then all other batteries have all dip switches set to off. If you have a 115200 baud system that is different but I think most are 9600 - my Solis is and you can check on the settings screen of the inverter. Hope that helps - and works!

[@ismaildawoodjee4085]

Whats your experience this far with your pylontech batteries

[@Comeodore]

What inverter do you have?

[@victorsolomon4277]

Hello great video. Please can l use 5kva 48v inverter with a single 3.5kwh 48v pylontech US3000 to power 500watt load. And how many hours can it run the 500watt load on full charge thanks

[@zaydshouse1373]

Thanks Victor. Yes you can. I ran my 5kva inverter with a single 3.5Kwh for over a year. It will handle 500w of continuous load with no issues for close to 6 hours - depending of course on what your low voltage cut off settings are. With a single battery you can draw a maximum continuous load of 1800 watts

[@elekporrasphilsolar5]

hi zayds , just asking if therre's a probllem if i connect the battery cables from inverter direct to master's positve and negative terminal? thnaks for the nice video

[@eustacebagge5499]

No problem at all! In fact, that is the recommended method, i don t know why he connected the negative to the second one.

[@zaydshouse1373]

Hi, it will work but you wont have any protection. Its best to have a fuse between the inverter and battery. Apologies for the delayed response.

[@jane-thebikermidwife780]

Brilliant thank you!

[@zaydshouse1373]

Glad it was helpful!

[@kellisonline]

Assume the same applies to the US2000 plus model.. adding a later US2000C model. The later model is used first and the older model daisy chained?

[@zaydshouse1373]

That is correct. When using the same module use the latest production unit as master. If you have different modules follow this order for determining which battery to use as the master battery: UP5000>US3000C>US2000C>US3000>US2000

[@MeHim-g8y]

Hi are there any difference on the dip switches?

[@zaydshouse1373]

Apologies for the late response - no changes on the dip switches. You only need to worry about dip switches if you have more than 4 batteries

[@kevinmatthews2620]

you have checked the voltage on the new battery independately of the second battery FIRST, before attempting or considering balancing

[@allabouttim]

What inverter do you have and how are your dip switches switched?

[@zaydshouse1373]

Hi Ian. I have an Axpert inverter. All my dip switches are off on both batteries. Dip 1 controls the RS486 baud rate which is the rate at which data is transferred. When its on the rate is 9600 bits per second and when its off the rate is 115200 bits per second. Dip 2 must be off if you are in single group mode (you will have more than one group if you have many batteries - typically more than 4). What issue are you experiencing?

[@gabrielbiscovan5994]

Hello Zayd, how long need to balance the battery if one is 48.7 V and the old one 48.4 V .Thanks

[@zaydshouse1373]

Hi Gabriel, it shouldn’t take too long to balance. Given the small difference in voltage between the two batteries it should be ok to connect them. In general you should be fine if the same number of LEDs are green on each battery

[@jairosjenami9565]

My communication cable is not working, what can I do.

[@Boplazima]

Hi zayd nice video... have a question to ask.. can you please help me ..I need to know whit one US5000 pylontech battery or maybe 2 battery together..which inverter I need to connect 48v 5000w or 10000w and can I run only whit 6 x 400w solar panel .. I hope you understand what I mean thank you..

[@zaydshouse1373]

Hi Alfredo, each UP5000 battery will give you 4.8kwh of capacity but will only allow you to draw a maximum continuous power of 2.4kw (battery capacity divided in half). So both a 5kw or 10kw inverter would work but a 10kw inverter would be overkill with limited batteries and solar panels. The advantage of a bigger inverter is that it allows you to expand your system over time by just adding more batteries and panels. If you have 2 x UP5000 batteries with a 5kw inverter you would be able to run the full inverter load of 5kw on the batteries alone without utility or solar. Hope that helps.

[@terrencestevenlloyd4214]

Hi please help to explain what parameters must I update on my existing Mecer 5kVa with 1 US3000 b. I am adding another 3000 today

[@zaydshouse1373]

Hi Terrence, since you are adding the battery in parallel none of the voltage settings need to change. The only parameter you should consider changing is the maximum charge current. You should double this value as you are doubling your capacity. The max charge current should be set at 37A per US3000 battery. So you can set it to 74A or round down to 70A. All other parameters should remain the same.

[@Daddys1652]

Hello Zayd, thanks for the informative video... i have four US2000 Batteries with Kodak KODAK Solar Off-Grid Inverter MAX 7.2kW 48V, and X6 410W Canadian solar panels... can i mix the US2000 battery with US3000 or 5000 or do i need to stick with US2000 range as i want to upgrade? Thanks in advance.

[@zaydshouse1373]

Hi Daddy, you can mix the batteries. When using the same module use the latest production unit as master. If you have different modules follow this order for determining which battery to use as the master battery: UP5000>US3000C>US2000C>US3000>US2000 There are two additional things to note: 1. The bigger batteries generally offer more value as they are cheaper per KWh - divide the cost by the battery capacity to figure out which one is better 2. The UP5000 only carries a 5 year warranty whereas the US series generally has a 7 year warranty that can be extended to 10 years upon registration

[@Daddys1652]

@@zaydshouse1373 Thanks for the response...

[@Daddys1652]

Any battery parameter settings you could remommend, i left everything in defaults eccept for charging source priority?

[@zaydshouse1373]

@@Daddys1652 Max charging current should be 25A x number of US2000 batteries (37A for us US3000) - you can round down to the nearest 10 if your inverter only works in increments of 10 - this is normally program 2 Program 12 - battery low return to grid - 48v Program 13 - battery full - 51v (or 50v if you want to start using the battery sooner and use less utility Program 26 - bulk charge - 53.2v (but I prefer to go a bit lower at 52.5v) Program 27 - float charge - 53.2v (again I prefer a lower value of 52.5v) Program 29 - battery low cut off - 47.5v (I set mine to 48v)

[@michaelranger9104]

how do you check the software levels are the same on all the batteries and do any software up dates ! if any difference

[@appleuserch2974]

I mean that each batterie must be connected separately (!) to earth. Serial connection cannot be used by earth.

[@mollyfilms]

You made a classic mistake. After you switch your batteries on you should wait at least 60 seconds before switching your inverter on. All manor of error codes can happen if you do this to early.

[@zaydshouse1373]

Hi Lee, thanks for your feedback. I have never experienced an issue and the manual says that the battery is ready for full output 3 seconds after soft start. But I guess there is no harm in waiting for a minute. Thank you

[@shankley74]

@@zaydshouse1373 Nice video Zayd. Can I ask a stupid question, when joining the batteries to the Inverter, why is the positive cable connected to the 1 battery and the negative cable to the 2nd? Why can't the inverter cables be joined to the same battery? I'm clueless on this stuff, what will go wrong?

[@martijnvandam3810]

@@shankley74 if you want to have the same cable length to both batteries in a parallel setup , than this is the way to do it. keeping the cable length the same helps by keeping the balance

[@shankley74]

@@martijnvandam3810 Thank you Martijn.

[@andrekriel7415]

No more pylontechs poor service from them