Sorry if this is a bit lengthy.
TLDR; how can I maximize two 12V 10A charging interfaces with solar?
I have a 12V 120Ah LiFePo4 Battery Pack with 2 charging interfaces (DC5521 connectors) that can handle up to 10A each, so 20A total.
I want my solar setup to get as close to the 10A without causing damage to re-charge the battery as fast as possible.
I know the safe, straight forward solution would be a 10A charge controller with a 100W panel, but it's never going to get to 10A.
I could over panel a 10A charge controller with a 130W, but this seems sub-optimal too. (And charge controllers that support over panelling are more expensive.)
If I increase to say a 160W panel (Isc 9A) or maybe two 100W (Isc 6A each) panels it would charge faster, but now I'm concerned that it will exceed 10A. I could use a 20A charge controller, but what about the 10A limitation on the battery interface?
From my research, I'm learning towards the 160W panel with a cheap PWM 20A charge controller for each of the two charging interfaces. This should get me pretty close to 10A without going over 99.5% of the time, right?
What do you think?
TLDR; how can I maximize two 12V 10A charging interfaces with solar?
I have a 12V 120Ah LiFePo4 Battery Pack with 2 charging interfaces (DC5521 connectors) that can handle up to 10A each, so 20A total.
I want my solar setup to get as close to the 10A without causing damage to re-charge the battery as fast as possible.
I know the safe, straight forward solution would be a 10A charge controller with a 100W panel, but it's never going to get to 10A.
I could over panel a 10A charge controller with a 130W, but this seems sub-optimal too. (And charge controllers that support over panelling are more expensive.)
If I increase to say a 160W panel (Isc 9A) or maybe two 100W (Isc 6A each) panels it would charge faster, but now I'm concerned that it will exceed 10A. I could use a 20A charge controller, but what about the 10A limitation on the battery interface?
From my research, I'm learning towards the 160W panel with a cheap PWM 20A charge controller for each of the two charging interfaces. This should get me pretty close to 10A without going over 99.5% of the time, right?
What do you think?
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