#### Bobastrat

##### New Member

### Hello, looking for ideas on optimal settings for Victron Multiplus 3000 12v using victronconnect (or is using vedirect better?) with the Chins 300ah lifepo4 battery and charging/using 30 amp shore.

To start this is all the battery specs I could find on it specifically:Chins 300ah LiFePO4:

Rated Capacity (0.2C): 300Ah / 3840Wh

Cycle life: 2000+ cycles at 80% discharge depth

Rated voltage: 12.8V

Charge voltage: 14.2 - 14.6V

Depth of Discharge (DoD): 100%

Standard charge current: 60A

Charging time: Approximately 6 hours

Max continuous charge current: 100A

Max continuous discharge current: 200A

Peak discharge current: 600A (Duration: less than 3 seconds)

Operating temperatures: Charge 0°C~50°C(32°F~122°F),

Discharge -20°C~60°C(-4°F~140°F), Storage -20°C~50°C(-4°F~122°F)

Impedance: ≤ 15mΩ

Starting from the top here is all the options I can find in Vconnect using mk3 (is there more?)

General:

1. Frequency

60hz

(no brainer)

2. ac1 input current limit

30A

(if I were to plug in a regular wall socket should I change this to 20 amp?)

3. dynamic current limit

(not sure the best practice)

4. Enable battery monitor on/off

(I have bmv712 so I need this on or off?)

5. battery capacity

300ah

(this seems straight forward I think)

6. state of charge when bulk finished

85%

(not sure what this should be)

7. charge efficiency

1%

(not sure what this should be)

Grid:

1. Accept wide input freq range (45-65hz)

on/off

(not sure what this should be)

2. UPS function

on /off

(not sure what this should be)

3. ac low voltage disconnect: 90v

(not sure what this should be)

4. ac low voltage connect: 97v

(not sure what this should be)

5. ac high voltage connect: 135v

(not sure what this should be)

6. ac high voltage disconnect

140v

(not sure what this should be)

Inverter:

1. inverter output voltage: 120v

2. ground relay: on

3. dc input low-shutdown: 9.30v

(not sure what this should be)

4. dc input low restart: 10.90v

(not sure what this should be)

5. dc input low pre-alarm: 10.90v

(not sure what this should be)

6. low soc shutdown: disabled

(not sure what this should be)

7. AES: off

8. power assist: on

9. assist current boost factor: 2.0

(not sure what this should be)

Charger:

1. charge current: 90a

(not sure what this should be)

2. absorption voltage: 14.60v

(not sure what this should be)

3. float voltage: 13.80v

(not sure what this should be)

4. repeated absorption interval: 7.00d

(not sure what this should be)

5. repeated absorption time: 1.00h

(not sure what this should be)

6. absorption time: 8h

(not sure what this should be)

7. charge curve: fixed

(not sure what this should be)

8. Lithium batteries: on

9. use equalization: off

10. weak ac input: off

(not sure what this should be)

11. stop after excessive bulk: on

AC input control:

1. conditional ac input connection: off

(not sure what this should be)

2. ac input connect based on load: off

(not sure what this should be)

3. connect when soc drops below: off

4. connect when battery voltage drops below: off

5. disconnect ac input on: battery voltage

6. disconnect when voltage is higher than 16v

7. delay before disconnection: 0w

Thanks!

Last edited: