pushing the limit on the Rover 40 | The Forum has been moved to support.renogy.com

goingoffgrid
Solar Newcomer

Posts: 23

pushing the limit on the Rover 40 Jan 6, 2020 20:40:00 GMT

Post by goingoffgrid on Jan 6, 2020 20:40:00 GMT

Jan 6, 2020 16:47:09 GMT obi81 said:

Hello there from Germany.

I got the same question,
I also didnt understand the manual with this --> MAX SOLAR INPUT POWER - 12v @520

i got the 40 Amp. Renogy Charger,
At the moment i have 2x 100watt panels in series, but i want to upgrade.
Batteries are in 12V config.

Is it posible to do 4x300watt ?
it should be wired 2x in series and the other 2x in paralell.

This is my choice of panel:
www.photovoltaik-shop.com/downloads/dl/file/id/1457/solarmodul_heckert_nemo_2_0_60m_315_320_325_datenblatt_pdf.pdf

greets martin

Martin,

12V @520.....The 12V refers to the output to the battery array. So with a 12V batt system you should not exceed more than 520 W of solar input...520W divided by 12V = 43 Amps....I honestly don't know if you exceed the spec on the input power, if that will damage the charge controller. It is mentioned in this thread, but don't have a definitive answer. If you do not have an inverter (yet) or have a lot invested in one, GO 24V batt system! Everything works more efficiently! That was the best choice I made setting up my system. Just my $.02

obi81
Solar Newcomer

Posts: 9

pushing the limit on the Rover 40 Jan 7, 2020 17:19:25 GMT

Post by obi81 on Jan 7, 2020 17:19:25 GMT

Jan 6, 2020 20:40:00 GMT goingoffgrid said:

Jan 6, 2020 16:47:09 GMT obi81 said:

Hello there from Germany.

I got the same question,
I also didnt understand the manual with this --> MAX SOLAR INPUT POWER - 12v @520

i got the 40 Amp. Renogy Charger,
At the moment i have 2x 100watt panels in series, but i want to upgrade.
Batteries are in 12V config.

Is it posible to do 4x300watt ?
it should be wired 2x in series and the other 2x in paralell.

This is my choice of panel:
www.photovoltaik-shop.com/downloads/dl/file/id/1457/solarmodul_heckert_nemo_2_0_60m_315_320_325_datenblatt_pdf.pdf

greets martin

Martin,

12V @520.....The 12V refers to the output to the battery array. So with a 12V batt system you should not exceed more than 520 W of solar input...520W divided by 12V = 43 Amps....I honestly don't know if you exceed the spec on the input power, if that will damage the charge controller. It is mentioned in this thread, but don't have a definitive answer. If you do not have an inverter (yet) or have a lot invested in one, GO 24V batt system! Everything works more efficiently! That was the best choice I made setting up my system. Just my $.02

Thank for the Help, I thought so,

But i got already an 12V Inverter :-(
but i can Live with the 520 Watts,

I would only use an little fridge on the Inverter (maybe 50watts)
and the rest for 12v led lights

I got enough battery power with my 600Ah Bank :-)

Admin
Administrator

Posts: 622

pushing the limit on the Rover 40 Jan 7, 2020 23:06:18 GMT

Post by Admin on Jan 7, 2020 23:06:18 GMT

Dec 17, 2019 17:12:05 GMT goingoffgrid said:

I am thinking about pushing the limit on the Rover 40.....Has ANYONE ran 2-500W series strings in parallel to the Rover 40 equaling 1000W? I am running a 24V setup and the CC is rated for 1040 with a max input voltage 100VDC. I understand the specs and ohms law...I am looking to hear from real world users if the ROVER 40 can handle prolong 1000W input/output without shorting its life. Of course, I know I will never(?) hit 1000W with this set up! LOL!

As long as the solar input power to the controller and voltage and amp specs are kept at or below the rated maximum spec values, (1040W or lower on a 24V system), the controller could handle prolonged usage and input/output without shorting its life.

-Renogy Team