|
Post by rabird on Jan 18, 2017 18:13:31 GMT -8
are we talking about on and off or do you suggest something other that you can provide info about? The fancier mt-50 that is used on other epsolar controllers allows for adjusting voltages does have a setting for backlight ON time. epsolar's accessories here www.epsolarpv.com/en/index.php/Product/index2/id/360/am_id/132
|
|
|
Post by rabird on Jan 17, 2017 18:18:48 GMT -8
from a mt5 manual
'The LCD has two different brightness levels. After any button is pressed the display will be in high brightness and backlight. To save power, the backlight automatically turns off after 30 seconds.'
|
|
|
Post by rabird on Jan 17, 2017 9:56:58 GMT -8
I see no need to fuse single panel.
As for disconnects, the order of connection and disconnect is important, warnings in the Wanderer manual should be headed. controller connects to batt first then the panels get connected, reverse for disconnect. My fear of disconnecting batteries before panel is real. I'd leave solar always connected and insure disconnect order when removing batts.
|
|
|
Post by rabird on Jan 11, 2017 12:49:39 GMT -8
www.goalzero.com/p/261/mc4-solar-to-8mm-adapter-cablewww.goalzero.com/creative/assets/guides/yeti1250.pdfCharging from Solar There are three different inputs you can use when charging your Goal Zero Yeti from solar, all located in the “INPUT” area in the top left corner of the Goal Zero Yeti faceplate. The two, round 8mm ports are designed to be used with Goal Zero Solar Panels. Each port can handle up to 160W of power – the combined total cannot exceed 240W. The Anderson Powerpole port is designed to be used with third-party solar panels and can handle 240W of power.
|
|
|
Post by rabird on Jan 9, 2017 8:05:11 GMT -8
Here's what morning star has to say of RTS EXTENDING CABLE LENGTH If the battery is located more than 10 meters (33 ft) from the controller, the RTS cable length can be extended up to 30 meters (100 ft.). It is recommended that the original remote sensor cable be cut and the new cable soldered into the middle. Solder the spliced wire connections and tape or seal the bare wires. The new cable extension should be a shielded, twisted pair cable. The new wires should be at least 0.34 mm2 (22 AWG), and a larger size 1.0 mm2 (18 AWG) is recommended for best performance. www.morningstarcorp.com/wp-content/uploads/2014/02/RTS.IOM_.Install_sheet.07.EN_.pdf
|
|
|
Post by rabird on Jan 8, 2017 13:23:38 GMT -8
yes, but then again your voltage sense wire is suppose to take care of that. 10 gauge should work for 30'/100 watts.
|
|
|
Post by rabird on Jan 8, 2017 13:17:23 GMT -8
There should little to no current over the temp senor wires or the batt voltage wires so they should be able to be extended without any issue.
|
|
|
Post by rabird on Jan 6, 2017 13:05:36 GMT -8
No one knows how these folks determine % state of charge, certainly not while being discharged. The readings are bogus and should be ignored.
Best for me to use battery voltage as an 'indication' and experience how loads & time drop voltage
|
|
|
Post by rabird on Dec 26, 2016 18:20:40 GMT -8
if ya connect the + from one panel to the - of the another panel, that is 2 panels in series. The remaining - and + from the 2 panels goes to the controller. Do the same for another pair and ya have 2 parallel strings of 2 ea in series.
|
|
|
Post by rabird on Dec 23, 2016 5:03:23 GMT -8
the 14.6v for 2 hrs is more of a top charge vs an equalization. Lifeline has an detail AGM battery manual, they call it conditioning vs equal page 20 lifelinebatteries.com/wp-content/uploads/2015/12/manual.pdfThe 2hr 'boost' )absorption may not be long enough to FULLY charge your battery. FULLY charging is the key so ya don't loose capacity. Repeated 90 or 95% charging causes the batt to slowly loose capacity. 'The battery is fully charged when the current drops below 0.5% of the battery’s rated capacity (0.5A for a 100Ah battery). ' Fancier controllers can be programed for this! Note that Trojan suggests 14.1 - 14.7 v charging voltage. They would not call 14.6v for 2 hrs monthly equalization! my AGM is a small 7ah that gets discharged 15% a day and recharged by solar, 400+ cycles so far, 13+ monthly 2 hr 'equalization' @ 14.6 temp compensated.
|
|
|
Post by rabird on Dec 22, 2016 9:41:50 GMT -8
SLA or sealed lead acid is the choice for most AGMs. 14.4v charge/ 13.8v float temp corrected.
I would keep the monthly 2hr equal @ 14.6v, many AGM/SLA batt makers suggest equalization. I use SLA setting for my small AGM/SLA battery with monthly 2 hr equal.
Seems the only way to avoid eqal is to use GEL setting
|
|
|
Post by rabird on Dec 14, 2016 5:11:53 GMT -8
all 7 in Parallel A 100 watt (12v) panel is approx 6A. 6x7 = 42A. 42*1.25 = 52+A so 60A controller.
Series/parallel. 3 strings of 2 panels. Each string of 2 = 6A but voltage is 40v. 3 stings of 6A = 18A. 20+A Mppt controller that can handle 45v input would work.
Series/parallel. 2 strings of 3 each Each string of 3 = 6A but voltage is 60+v. 2 strings of 6A = 12A. 20A Mppt controller that can handle 70v input would work.
One series string of 7 6A string, 155v input (Voc*7, 22v*7=154). Mppt controller that can handle 154v input would work.
700 watts is a lot of charge capability for 4x35ah batteries!
|
|
|
Post by rabird on Dec 9, 2016 17:14:52 GMT -8
seems it up to you to determine, disconnect the solar, does the battery still discharge? left something on? CO/propane detector or do ya disconnect? ...?
|
|
|
Post by rabird on Dec 6, 2016 11:15:11 GMT -8
not knowing your battery size, who knows how long it takes to fully charge. inverters are inefficient, use 12v light blub. use this calculator. www.solarelectricityhandbook.com/solar-irradiance.htmlI use a factor of 3 for winter!!! 50watt = 2.7A 2.7 x 3 = 8 ah/day charge 25 watt / 12 = 2A 2A x 4 hrs = 8ah/day discharge another panel and you could go 8hrs vs 4. Battery size for 16 ah discharge a day (2A * 8hrs) 60- 100 ah ought to allow for days like today in Dallas!!!! FWIW, I operate 5 x 1 watt landscape lights for 3 hrs each dusk (5 x 3 = 15 watt hrs) I have a 60 watt panel but rarely charge 7 ah batt over 1A so a 15 watt panel would be enough on sunny days, largeish panel helps charge on dreary days. 15 watt hrs / 12 ~ 1.25 ah discharge /day. 400+ days going strong.
|
|
|
Post by rabird on Dec 1, 2016 12:30:40 GMT -8
pure sine wave.
what wattage coffee maker, if say 1000 watt go with 1500 watt inverter.
Turn inverter off when not in use!!!! Use 12v chargers for phone/electronics whenever possible.
wire from batts to inverter = big and short.
|
|