Victron 100/15 "load output" maximum?

[Gummies]

I have a strange question that I havn't been able to test, but you are all smarter, so... on a "good" day, right now it's quite rainy in California, the charge controller can't seem to get to more than 220w maximum output (the right spec in victron spec sheet per 12v battery setting)

Victron MPPT 100/15 has a load output with a continuous max of 15A.

The setup:
0. PV in: 4S 195W solar panels (80V 10A)
1. Charge Controller to Battery: 2P 12v100ah batteries in parallel
2. Charge Controller to load: "amazon" battery bank (~1000wh)

The question/answer:
1. Is the "load output" shared with the battery "output"? eg. I see it bulking on the battery at ~100W while dispersing out ~120w to the "amazon" battery bank; would this ever be 220W battery charging + 220W load output?
2. Would 2P2S make a difference compared to 4S on battery charging maximum given this is a MPPT (if i upgraded to a victron 100/20)?


Thanks!

 

[sunshine_eggo]

I have a strange question that I havn't been able to test, but you are all smarter, so... on a "good" day, right now it's quite rainy in California, the charge controller can't seem to get to more than 220w maximum output (the right spec in victron spec sheet per 12v battery setting)

Victron MPPT 100/15 has a load output with a continuous max of 15A.

The setup:
0. PV in: 4S 195W solar panels (80V 10A)
1. Charge Controller to Battery: 2P 12v100ah batteries in parallel
2. Charge Controller to load: "amazon" battery bank (~1000wh)

The question/answer:
1. Is the "load output" shared with the battery "output"? eg. I see it bulking on the battery at ~100W while dispersing out ~120w to the "amazon" battery bank; would this ever be 220W battery charging + 220W load output?

Load output is an alternate location to connect to battery. It has a relay in it that allows you to turn on/off output based on various criteria.

https://www.victronenergy.com/upload/documents/Datasheet-SmartSolar-charge-controller-MPPT-75-10,-75-15,-100-15,-100-20_48V-EN.pdf

The load port is rated for 15A - never exceed, not even for surge.

The MPPT output to anything is limited to 15A. Period.

2. Would 2P2S make a difference compared to 4S on battery charging maximum given this is a MPPT (if i upgraded to a victron 100/20)?

No. You're massively over-paneled. You should stick with 4S as you don't want to exceed the 15A PV input current limit.

 

[Gummies]

Load output is an alternate location to connect to battery. It has a relay in it that allows you to turn on/off output based on various criteria.

https://www.victronenergy.com/upload/documents/Datasheet-SmartSolar-charge-controller-MPPT-75-10,-75-15,-100-15,-100-20_48V-EN.pdf

The load port is rated for 15A - never exceed, not even for surge.

The MPPT output to anything is limited to 15A. Period.



No. You're massively over-paneled. You should stick with 4S as you don't want to exceed the 15A PV input current limit.

thanks! Sounds like I may need to step it up to 24v to better utilize some of the over paneling (I only had 300W of panels previously, just bought 4x195w bifacial for ~$530 after tax last month) :D