Renogy's 3500W 48V Solar Inverter Charger

Saggys

Too good to be true? Exploring the idea of updating our antiquated system. If it works as advertised should do everything we need. Even has a blue tooth option for remote monitoring.

Saggys

Forgot to mention, it's the hybrid model, would post a link if I was able and if it was allowed, don't want to break forum rules.

MichaelK

It looks like a typical high-frequency inverter, which more or less means no meaningful surge capacity.  It "says" 7000W surge, but for how long?  Top quality inverters rate their products as having a 60 second surge, lesser products with a 5 second surge, and low budget "cheapo" inverters with as little as a 8ms surge.  That's 8 thousands of a second!  Since they don't even specify how long a surge it can handle, I would take that as a red flag.  It will be OK for watching TV, and lights, but don't try running a circular saw.

Saggys

So it probably is too good to be true... I need one that can run my well pump and sanitation lift pump which my present inverter does easily. It is approaching 20 years old and is used on weekends only and vacations, but I would really like to increase my battery bank voltage as well.
I do kind of like the all in one approach also, the cost is low enough that you could buy two and have a spare. Also, at least I have heard of Renogy, some of the other hybrids not so much. 

Saggys

While checking through the manual I found another concern, it states: For PV to charge 48V battery banks, you will need a minimum PV Voc voltage of 

60VDC. It seems to me that 60 VOC is kinda low to charge a 48v battery. In my case that would be 3 series 17 volt VMP panels for 51VMP and 65.1 VOC, would that work? So this MPPT can boost and buck?

BB.

Posting links is fine when asking/answering questions.

- Bill "moderator" B.

Saggys

Thanks Bill
https://www.amazon.com/Renogy-3500W-Pure-Sine-Wave/dp/B08L7JFYVZ
I hope the link works.

Photowhit

So here's the manual;

RIV4835CSH1S-G1【48V 3500W逆变一体机】_说明书_V1．1_20201229 (mybigcommerce.com)

A few things caught my eye;
Appears the max equalizing is under 60 volts, battery voltage range is also 40-60 volts.
Many flooded lead acid batteries equalize higher than this (Rolls is 64 volts!) I use ~of 62 volts.


I don't see a safety rating UL1741 would be for home use.

Saggys

It puzzles me as why a company would sell a product that will not work properly. How much harder is it to make it work in the field? Great concept poor execution. Even if it costs more, are there any hybrid inverters from Outback, Schneider or Magnum? 

mike95490

Saggys said:

It puzzles me as why a company would sell a product that will not work properly. How much harder is it to make it work in the field? Great concept poor execution. Even if it costs more, are there any hybrid inverters from Outback, Schneider or Magnum? 

Schneider  makes the XW series, which are hybrid inverters
https://solar.schneider-electric.com/product/xw-na-solar-inverter/

Photowhit

Saggys said:

It puzzles me as why a company would sell a product that will not work properly. How much harder is it to make it work in the field? Great concept poor execution. Even if it costs more, are there any hybrid inverters from Outback, Schneider or Magnum? 

Perhaps 'gearing up' for a lithium battery world...sigh.

Saggys

Looks good Mike but I did not see a built in MPPT charge controller. Photowhit probably right, but our battery storage is outside in a insulated box and it has been reaching -20 degrees Fahrenheit here lately so I am a FLA user.

mike95490

Saggys said:

Looks good Mike but I did not see a built in MPPT charge controller. Photowhit probably right, but our battery storage is outside in a insulated box and it has been reaching -20 degrees Fahrenheit here lately so I am a FLA user.

Oh,   only a charger when running from genset or grid.   The solar MPPT controller is another box