setting info on Pionergy LiFePO4 Battery and /Controller Renege Rover Series

[WelderWalt]

We need assistance please.....
we have installed a 12 volt system
we live near Pittsburgh Pennsylvania
We used the following:

Solar Panels
290 watts Thunderbolt Magnum part no. 63585
amorphous silicone solar cells
and
110 watts of Nature Power solar panels
polycrystalline solar cells
model # 53110
for a total of 400 watts of solar panel array
connected to
Universal solar connector
Thunderbolt Magnum Solar 400 watt
universal solar connector
Part no. 68689
Batteries
Qty. (2) connected in parallel
Pionergy LiFePO4 12 volt 200 AH plus,
400 amp hour total with BMS. Deep Cycle
Inverter
Jupiter pure 2000 watt 12v
connected the two batteries with 2/0copper wire
the inverter is connected to the batteries with
2/0 copper wire protected by a 250 amp fuse
Solar Charge Controller
Renogy Rover Series 40A
MPPT Tracking Solar Charge Controller
the batteries are connected to the charge controller with 8 awg copper wire protected by a 50 amp fuse

we have a greenhouse and want to run a fan in the summer.
we cannot run all night without discharging the batteries
batteries discharge to 11 volts and cut off. Why
does it shut down when the batteries reach 11 volts?
Is it a Renege Rover and Battery problem?
what do we need to change???

Regards
Tom Corey

 

[scotty1]

what does the fan draw? 11volt cutoff is normal.

 

[Tomthumb62]

Sounds like your batteries are not receiving a charge or not enough charge.

Bit confused by the formatting of your post, but it appears you have:

40A charge controller
110W panel
290W panel
400Ah of lithium battery
2000W inverter
fan

How are the panels wired? Series or parallel? If not wired in series, it's not a great idea and is probably not giving you enough charge.

What is the power specs of the fan? I assume 120v hence your inverter but how many amps? Should be listed somewhere on the fan. How many hours per day does the fan run and does it also run at night or is it simply running 24/7?

Most likely a 2000W inverter is way overkill for just running a fan and it's self-consumption (idle draw) is probably rather high. What brand/model is your inverter? Once you know the power needs of your fan (and anything else you hope to power from the inverter), then you can better determine just how big of a inverter you actually need. For example, we just downgraded from a 2000W inverter to a 1000W one and it's saving us a TON of battery capacity each day due to the lower idle draw of the smaller inverter.

Finally, do you have a multimeter and know how to test the solar panels for voltage (and amps if you meter allows it)?

Photos of your setup and wiring can help us troubleshoot much easier.

 

[mikefitz]

Details of the panels, volts and current would be useful.