Renogy BSC3048 vs WN P30L

Snubber · Feb 27, 2023

I have a new Windy Nation P30L CC that I want to use to charge my Ampertime 12V 300ah battery. However , I'm not sure that it is lithium compatible. I've looked at the Renogy BSC3048 that clearly states it is lithium compatible. The 2 CCs look identical to me other than Renogys two USB ports. Is there any way to tell , or just drop $40 for the Renogy? This is an RV application. TIA

12VoltInstalls · Feb 28, 2023

I loved the P30L

If you set it to AGM it should work.

Read the manual- you can customize some settings to optimize for your battery manufacturer’s specs.

No matter what you do skip the renogy stuff.

Snubber · Feb 28, 2023

Thanks , I'll read up on it. I was just worried about it with lithium.

Snubber · Feb 28, 2023

I'm also seriously considering an MPPT Controller. For now , I only have one 100W panel ( I'll add another eventually ). This is just a pretty expensive battery for me. Maybe I'm overly cautious.

12VoltInstalls · Mar 1, 2023

Snubber said:
Thanks , I'll read up on it. I was just worried about it with lithium.

And btw set “equalize” volts <14.2V and disable equalize- can’t recall if it has that option.

mikefitz · Mar 1, 2023

Both the charge controllers you are considering are low cost, $10 from China, PWM type chargers. You will have greater solar power yield, compatability with a grearer range of solar panels, a safer control of charge current and charge perameters, using a quality true MPPT controller. You have an expensive battery treat it to the controller it deserves.
For 200 watts of panels you need a 15 amp minimum controller. Consider possible future panel increase.

Mike

12VoltInstalls · Mar 1, 2023

mikefitz said:
Both the charge controllers you are considering are low cost, $10 from China, PWM type chargers. You will have greater solar power yield, compatability with a grearer range of solar panels, a safer control of charge current and charge perameters, using a quality true MPPT controller. You have an expensive battery treat it to the controller it deserves.
For 200 watts of panels you need a 15 amp minimum controller. Consider possible future panel increase.

Mike

That’s better advice strategy.

The p30L will ‘work’ but is not optimal by any stretch. Though for 200W of panels it will not be far off a better controller, the point about the battery makes much sense.

Snubber · Mar 1, 2023

Thank you.

Snubber · Mar 1, 2023

mikefitz said:
Both the charge controllers you are considering are low cost, $10 from China, PWM type chargers. You will have greater solar power yield, compatability with a grearer range of solar panels, a safer control of charge current and charge perameters, using a quality true MPPT controller. You have an expensive battery treat it to the controller it deserves.
For 200 watts of panels you need a 15 amp minimum controller. Consider possible future panel increase.

Mike

For this 12v 300ah Lithium battery , what would be the recommended voltage shut off be programed to? 14v ?

12VoltInstalls · Mar 2, 2023

Snubber said:
For this 12v 300ah Lithium battery , what would be the recommended voltage shut off be programed to? 14v ?

What does manufacturer say? There is a ‘boxed’ answer but doesn’t reflect that some manufacturers have explicit preferences that can vary a bit.

Snubber · Mar 2, 2023

I will look at that. My paperwork is in my RV about 30 miles from here. Just thought there might be a universal setting for Lithium 12v.

12VoltInstalls · Mar 2, 2023

Snubber said:
might be a universal setting for Lithium 12v

There is. Ish. Mostly.
The cells behave the same all else being equal.

mikefitz · Mar 3, 2023

It's not clear what 'voltage shutoff' is being questioned. If its charge voltage limit set in the battery charger then 14.2 to 14.4 volts is common.
Under discharge the battery BMS will typically have a protection limit of 2.5 volts per cell or 10.5 volts per battery, and under charge , 3.65 volts per cell and 14.6 volts per battery.

Renogy BSC3048 vs WN P30L

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