question

marcomaroso avatar image

How to configure DOD of AGM battery with MPPT 150/35

Hello everyone and thanks in advance for any reply to my questions.

I made a small solar system at home in my garden as a test purpose for future use on a camper van.

The system is made by:

1 poli solar panel 24v 280watt 5 busbar

1 mppt smartsolar Victron 150/35

1 AGM green power 12v 100ah battery

1 novopal 12v 1500watt inverter

Wires from solar panel to MPPT and from MPPT to battery is awg 8

I would like to know:

1. The battery manufacturer, for longer life, suggests to not discharge the battery more than 30%. where do I configure the DOD (depth of discharge) of my battery so that it never discharges more than 30%?

2. Why does my Victron connect app show that solar panels generate a maximum of 100watts per day while my panel is a 280watt?

3. Should I add a another battery connected in parallel?

4. Can I add another identical solar panel and how should I connect it (serial/parallel)?

When I did measurings with loads connected I was reading from the Victron app a total of 31watts in a sunny day while I was running a 250watt mixer connected to my inverter and having turned on a 5watt 12v led lamp directly connected to the battery.


Any help is appreciated.

mppt smart solar
2 |3000 characters needed characters left characters exceeded

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

1 Answer
klim8skeptic avatar image
klim8skeptic answered ·

Have a look at this blog and comment.

OOps blog..


2 |3000 characters needed characters left characters exceeded

Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.