Buck Your Solar with a Mex Gizmo?
Mex has a thread about equalizing with this sort of gizmo http://www.amazon.com/DROK-Constant-Current-Converter-Regulated/dp/B00E8D7XYG There are many of these on ebay with different specs, so t...
Forum Discussion
BFL wrote:
"So if you had a 230w panel that does 37v (34v when in the sun) and 8.3 amps, you could just use one of these gizmos that would take that input, set the voltage to 14.8v and you would get how many amps more than the 8.3?
Would the amps taper after battery voltage reached 14.8 or would the amps be set at some fixed amount? I don't know how these things operate."
I'm becoming more and more convinced these little units are worth their weight in gold (just don't tell the retailers that!).
Being cv and cc, I don't see why it wouldn't function the same as any ac-dc cv/cc power supply, holding in cc mode, at its current limit, until voltage reaches the set-point, and then switching to cv mode while amps taper.
And if bucking down from 36v to 14.8 seems too extreme, do it in two stages, with a gizmo for the gizmo, like you said. Just buy 3 of the $12 ones I linked to, and go nuts.
My only concern is how well they would handle the fluctuating input voltages from a solar panel?
"So if you had a 230w panel that does 37v (34v when in the sun) and 8.3 amps, you could just use one of these gizmos that would take that input, set the voltage to 14.8v and you would get how many amps more than the 8.3?
Would the amps taper after battery voltage reached 14.8 or would the amps be set at some fixed amount? I don't know how these things operate."
I'm becoming more and more convinced these little units are worth their weight in gold (just don't tell the retailers that!).
Being cv and cc, I don't see why it wouldn't function the same as any ac-dc cv/cc power supply, holding in cc mode, at its current limit, until voltage reaches the set-point, and then switching to cv mode while amps taper.
And if bucking down from 36v to 14.8 seems too extreme, do it in two stages, with a gizmo for the gizmo, like you said. Just buy 3 of the $12 ones I linked to, and go nuts.
My only concern is how well they would handle the fluctuating input voltages from a solar panel?
