Hi Gang,
We have a 48Vdc Solar site that the solar charge controller when it goes
into absorption mode the battery array voltage exceeds 60Vdc. However we
have some equipment that doesn't like more than 60Vdc.
What product are you using to supply a clean 48Vdc (no more that 300 Watts
is needed)
You want a meanwell RSD series converter. Rsd-200c-48 I believe will work
depending on load.
In the part number:
200 is the wattage.
C is the input voltage.
48 is the output.
You'll want to double check but the part number I provided should be a 200w
48 to 48 supply. There are ones available
awesome! thanks forest, that's exactly what i was looking for :-)
-sean
On Thu, Oct 2, 2014 at 2:04 PM, Forrest Christian (List Account) via Af
af@afmug.com wrote:
You want a meanwell RSD series converter. Rsd-200c-48 I believe will
work depending on load.
In the part number:
200 is
Many new solar controllers will let you program the absorption voltage.
We just started using an MPPT controller from Midnite solar, and all the
different voltages are programmable per the battery manufacturer's
specification.
bp
On 10/2/2014 12:50 PM, Sean Heskett via Af wrote:
Hi Gang,
60V seems high, copied verbatim from the datasheet for a typical powersonic
12V AGM battery (12V):
Limit initial current to 1.2A. Charge until battery voltage
(under charge) reaches 14.4 to 14.7 volts at 68°F (20°C). Hold at 14.4 to
14.7
volts until current drops to under 50mA. Battery is fully
wait, that copy and paste was from a very small battery, the charging rate
is obviously wrong, but voltage remains the same. from a powersonic 12V
100Ah AGM battery:
Cycle Applications:
Limit initial current to 20A. Charge until battery voltage
(under charge) reaches 14.4 to 14.7 volts at 68°F
Correct absorption charge for an AGM 48v battery array at freezing is
around 61v. (15.3v per 12v battery)
On Oct 2, 2014 8:16 PM, Sean Heskett via Af af@afmug.com wrote:
I think it might be because it's cold here now and the charger compensates
for battery temp.
I'll check the controller
