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Old 26-07-2017, 09:04   #1
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Location: Aboard on US East Coast
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Looking for recommendations for small MPPT controller for LiFePo4

Looking for a small MPPT solar controller.

What I am looking for:

Inexpensive
40V min. solar input.
450W min. solar input. 3*150W 24V panels in parallel.
12V nominal battery with adjustable parameters for Absorb, and float. I have 400AH LiFePo4
Separate voltage sense wires.

Nice to have:

Remote monitoring by PC or phone.

The Victron controllers seem to check most of these requirements, but do not have separate voltage sense inputs. Is this not a problem ?
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Old 26-07-2017, 13:14   #2
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Re: Looking for recommendations for small MPPT controller for LiFePo4

Victron makes great quality gear, and in this case good value.

If the controller is close to the bank you should be OK.

The higher-amp more $$$ units do allow for temp sense wire rather than just compensating based on ambient.

But I think those Dutch engineers know their stuff, even at under $100 for the 75/15.

Note you can go well over the amp rating on PV input (15A) but DON'T take any chances exceeding the 75V max.
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Old 31-07-2017, 07:12   #3
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Re: Looking for recommendations for small MPPT controller for LiFePo4

Quote:
Originally Posted by NahanniV View Post
Looking for a small MPPT solar controller.

What I am looking for:

Inexpensive
40V min. solar input.
450W min. solar input. 3*150W 24V panels in parallel.
12V nominal battery with adjustable parameters for Absorb, and float. I have 400AH LiFePo4
Separate voltage sense wires.

Nice to have:

Remote monitoring by PC or phone.

The Victron controllers seem to check most of these requirements, but do not have separate voltage sense inputs. Is this not a problem ?

Victron or Western Co. those are the most reliable solar MPPT charger in the Market
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Old 11-08-2017, 00:18   #4
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Re: Looking for recommendations for small MPPT controller for LiFePo4

Highly Recommend the victron bluesolar controllers. I have installed at-least 20 of them in many boats and not had one issue. The option to program via Bluetooth and app and monitor incoming power and history makes life easy.
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