HIF'er,
So yes, the fuse is in line with current from and to all power.
This Y-Solar PMW is shuts off load when battery voltage drops below 10.4v. I plan to upgrade the solar panel from 20w to 50w and the storage from 11Ah to 35Ah. Checked it last night ran about 4.25 hours nice sunny day in OH. I want to get the light to last dusk to dawn mid Apr - late Aug, sequential days in OH with > 13.5+ hours of sunlight. (For simplicity I'll use 10 hours of charging/day and 10 hours of draw per night) input voltage, clouds, rain, temperature etc all factor in but this will get us within the margins.
Charge-
Currently:
20w charge for 10 hours, 200wh, 12v = 16.6Ah on a 11 Ah battery
Upgrade:
50w charge for 10 hours, 500wh, 12v = 41.6Ah on a 36Ah SLA solar battery
Draw-
Currently:
10w draw for 4.5 hours, 45wh at 12v = 3.5Ah on a 11Ah battery. (I am assuming that the PMW is shutting it down at 10.4v)
Upgrade:
10w draw for 10 hours, 100wh at 12v = 8.3 Ah on a 35Ah battery so with the update it should have a comfortable margin, plenty of stored Ah.
Of all the things I need to do and haven't is confirm/measure the a DC power draw in watts of the LED...
Might seem like a lot, but to run shore power down there, +500 yards, it's over $4,500, plus the monthly power bill.
All the components, totaled up (upgraded version Mark II) comes to just over $200.00
Last edited by Stressless; 06/07/20 11:42 AM.
