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Victron MPPT & SmartShunt settings

Reef Whooligan

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Joined
Mar 14, 2022
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18
I just wanted to make sure I am using the correct settings on my Victron SmartSolar 100/50 MPPT and SmartShunt to go along with a Renogy 200AH AGM battery. I have attached pictures of both the MPPT and shunt settings and the specs of my battery are below. A couple things I'm not sure about are:

1) Is "Cycle Use" and "Absorption" the same?
2) When a range of voltages is provided is there a preference for what to use? Currently I have it set in the middle.
3) I read elsewhere on the forum that "charged voltage" on the shunt should be set .1v less than the absorption voltage of the charger, is this correct?
4) I cannot find anywhere that renogy publishes a peukert value. Victron manual says to leave it as default unless it's lithium...
5) Tail current? I don't know if that should be changed or not so it is default.
6) Battery specs have two different temperature compensation values, which one is supposed to be used for the charger?


Renogy 12V 100Ah Deep Cycle AGM Battery
Operation SpecificationsMechanical Specifications
Rated Capacity (77°F/25℃)200Ah (20 Hour Rate to 10.5V)Dimensions20.6 x 9.4 x 8.8 in / 522 x 240 x 224 mm
Rated Voltage12 VWeight127.9 lbs / 58 kg
Number of Cells6Terminal Bolt SizeM8 x 1.25 x 16 mm
Reference Capacity (77°F/25℃)C3: 152.9Ah
C5: 172.3Ah
C10: 190.5Ah
C20: 200Ah
Normal Operating Temperature77°F±9°F(25°C±5°C)
Self-discharge Rate (77°F/25℃)3% / monthOperating Temperature RangeDischarge: -4~140°F/ -20°C~60°C;
Charge: 32°F~122°F (0°C~50°C)
Float Charge Voltage (77°F/25℃)13.6V~13.8V; Temperature Compensation: -18mV/℃Storage Temperature Range-4~140°F/ -20°C~60°C
Cycle Use Voltage (77°F/25℃)14.4V~14.8V; Temperature Compensation: -24mV/℃Container MaterialABS
Equalization Voltage (77°F/25℃)14.2VRecommended Terminal Torque88.5~106.2 inch·lb / 10~12 N·m
Max Discharging Current2000A (5 seconds)Certification
Max Charging Current60AMSDSYES
Internal ResistanceApprox. 3.5mΩAccessories
Connection MethodIn Series, and In Parallel (up to 4)M8 Bolts*2
Warranty
2-year material and workmanship warranty
 

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I just wanted to make sure I am using the correct settings on my Victron SmartSolar 100/50 MPPT and SmartShunt to go along with a Renogy 200AH AGM battery. I have attached pictures of both the MPPT and shunt settings and the specs of my battery are below. A couple things I'm not sure about are:

1) Is "Cycle Use" and "Absorption" the same?
2) When a range of voltages is provided is there a preference for what to use? Currently I have it set in the middle.
3) I read elsewhere on the forum that "charged voltage" on the shunt should be set .1v less than the absorption voltage of the charger, is this correct?
4) I cannot find anywhere that renogy publishes a peukert value. Victron manual says to leave it as default unless it's lithium...
5) Tail current? I don't know if that should be changed or not so it is default.
6) Battery specs have two different temperature compensation values, which one is supposed to be used for the charger?

1) Yes.
2) Higher gives faster charging with a potential reduced cycle life by a small amounts for both.
3)
4) 1.25 is typically fine. If Renogy gives different capacity ratings for 100 hours, 20 hours, 10 hours, etc., Victron has a Peukert calculator.
5) Most lead acids are fully charged at absorption voltage and 1-3% of rating (0.01-0.03C). That would be 2-6A in your case. Set MPPT for 4A (0.02C) and configure shunt for 4%
6) Use the cycle use, -24mV/°C.
 
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