I have a Trimetric battery monitor, I set up a 200 watt system with a mppt controller. Panels say 16V meter says 13.7
2082892
I did not use the mppt. I just used the regular digital 30 amp control charger. However, the numbers you mentioned sound real good to me. It takes awhile to learn how to convert between watts and volts and amps and so forth. I know that for you to have a reading 0f 13.7 is really good, and that shows you are charged up.
2082893
Mppt controllers usually cycle just like pwm controller depending on load light etc at 200watts the mppt controller isn't IMHO the best controller for charging at lower wattages. Check your manual that came with the charge controller.
2082894
If you measure the voltage between the panels and the controller (during good sunlight) you should expect the voltage to be higher, like the 16V mentioned - more in line to what the raw panels will put out, this is dependent on good sunlight and positioned correctly. It could be lower if sunlight is marginal. When you measure the voltage between the batteries and the charge controller you would expect a reading like 13.7 volts. If the voltage is 16 volts going to the batteries you'll boil them, i.e. gas discharge, etc.... The charge controller will regulate the voltage for a proper charging environment. 13.7 volts is appropriate.... If you measure the voltage between the panels and the controller (during good sunlight) you should expect the voltage to be higher, like the 16V mentioned - more in line to what the raw panels will put out, this is dependent on good sunlight and positioned correctly. It could be lower if sunlight is marginal. When you measure the voltage between the batteries and the charge controller you would expect a reading like 13.7 volts. If the voltage is 16 volts going to the batteries you'll boil them, i.e. gas discharge, etc.... The charge controller will regulate the voltage for a proper charging... » Read More If you measure the voltage between the panels and the controller (during good sunlight) you should expect the voltage to be higher, like the 16V mentioned - more in line to what the raw panels will put out, this is dependent on good sunlight and positioned correctly. It could be lower if sunlight is marginal. When you measure the voltage between the batteries and the charge controller you would expect a reading like 13.7 volts. If the voltage is 16 volts going to the batteries you'll boil them, i.e. gas discharge, etc.... The charge controller will regulate the voltage for a proper charging environment. 13.7 volts is appropriate.... « Show Less
2082895
The 13.7 volts you're reading is normal. The charge controller is doing its job. It's protecting your battery bank because 16-18 volts being pumped into batteries is not safe or recommended.
860528
Sorry I can't help you on this yet. I bought these units to give me readouts on my battery supplies for my solar power system and I won't be putting the system together until this summer. The meters are in Montana at my cabin and I will be here in North Dakota working until spring. So don't have access to them or the paperwork that may have come with them.
883032
You should look at running 2 - possible 3 100 watt panels, if an upgrade for future look at 10 gauge panel wire, it seems your running 12 volt, but your inverter and charger will depend. I've got a 40 amp 12/24 charger but batteries will run at 12 bought in a kit with 6 100 watt panels but told to only run 5 as my 60 amp also takes 1600 watts if at 24, but running at 12 so 800 watts mix up and I was sent a 12 both are mppt, you can probably run 5-6 100 watts if you have 2/ 25 amps combined, if not mppt they will keep charging but at a lower rate will destroy your batteries if not in use all the time, go with 10 gauge wire you will be happier.
1193129
Even though the battery voltage is reading 13.5 volts, it does not mean the batteries are fully charged. Fully charged should read 14.2 volts, that is when the soc will read full but only if there is no load on the batteries
1581548
I'm guessing that the solar panel is the "Source" and the charge controller is the "Load". If so, if the panels are indeed putting out 335 watts, and the voltage is 16.65V, you should be drawing 20 Amps. Perhaps it is a poor connection, or the charge controller is not allowing any current to pass through. If you have a standard multi meter, you could measure the current by allowing the red wires to feed through the meter. (be careful, many meters can't measure more then 10A, and if indeed 20A are flowing, that could burn out the meter.)I use my Watt's Up meter to measure drain from Li-Po batteries connected up to brushless motors and it works great. I'm guessing that the solar panel is the "Source" and the charge controller is the "Load". If so, if the panels are indeed putting out 335 watts, and the voltage is 16.65V, you should be drawing 20 Amps. Perhaps it is a poor connection, or the charge controller is not allowing any current to pass through. If you have a standard multi meter, you could measure the current by allowing the red wires to feed through the meter. (be careful, many meters can't measure more then 10A, and if indeed 20A are flowing, that could burn out the meter.)I use my Watt's Up... » Read More I'm guessing that the solar panel is the "Source" and the charge controller is the "Load". If so, if the panels are indeed putting out 335 watts, and the voltage is 16.65V, you should be drawing 20 Amps. Perhaps it is a poor connection, or the charge controller is not allowing any current to pass through. If you have a standard multi meter, you could measure the current by allowing the red wires to feed through the meter. (be careful, many meters can't measure more then 10A, and if indeed 20A are flowing, that could burn out the meter.)I use my Watt's Up meter to measure drain from Li-Po batteries connected up to brushless motors and it works great. « Show Less
1193133
Fully charged agm battery will be around 12.9V. My mppt charge controller blinks when battery charge goes 13.4 and after 1 hour stand by it will go 12.9 V which is sate of full charge (confirmed with Concorde sun xtender rep). But for some reason mt-5 shows 50% and it is wrong. I will find out with monitor manufacturer and update later.
1224563
i used 12 gauge from the solar panels to the controller and from the controller to the batteries i used no 6 awg i already had here The no 6 is probably overkill i wouldnt go any less than 8 from the controller to the batteries what is your battery bank at least 24v i hope
1031245
No. The meter must be powered by a voltage between 4.5 - 30 VDC. It will happily measure the 52 VDC source, but you will need either a voltage regulator or a separate power source (like a battery pack) to power the meter. If you use a battery pack to power it, you will need to connect the (-) terminal of the battery to the (-) connection of the voltage source you are measuring so that they will have a common ground.
811583
Measuring one that has been sitting for 1.5 month since charging, my battery test meter (applies a load) says 8.24v.
51076
Yes, I am busy using it to indicate the charge coming from a bank of solar panels. I am going up to a max of 42A (using the 200A shunt) - it does not seem to give a reading at low currents e.g. 1A but once it goes over this it is pretty accurate. I am using the battery that I am charging as the supply and it works fine.
616969
This is why I hooked my 520 watts of panels in series so you halve the amperage. I can add another 2 panels in the future and still keep it under 30 amps. Remember too that the charge controller can charge a normal 12v battery bank, that's what mine is. I recommend making a 24v panel setup.
1685481
I see its states 12/24 volts.,100volts, woow that's a lot.,,yes Pv power refers to the solar panels as far as I understand.,i have a 12volt system.,with one 100Watt panel.,you have 24volts, so what are you confused about. you have another 76 volts to go before you could have problems.,,,LOL...Hope this helps.,we are all learning.,,
1371008
The unit I received says 14.4 volts, 18.7 watt hour and 1300 mAh. That is 1.3 AH. So neither is accurate. How about that. Plus, if you divide 18.7 AH by 14.4 volts the actual AH is 1.2986...actually less than 1.3AH. Not all is as it seems!
366650
Check those specs again... where did you get 15amp from? 115v x 15amp = 1725watts. A 50w panel will not power a 1725watt appliance. Your best bet is to buy a Kill-a-Watt meter from amazon. That will provide you with accurate usage specs.
2155591
16 Amps is correct. The watt measurement is a total of all rails. The 5.5v and 3.3v compromise nearly half of the available wattage in these
1266446
Check the power rating on the spec sheet. I've got a 650watt and its been fine.
2042004
Yes you can get a close approximate figure but solar conditions vary constantly. I turned on everything in my shop so the inverter called for a lot of amps from the batteries and thus the solar controller increases the amperage output to the batteries. Take the amperage figures from the LCD display and multiply it by the voltage of the batteries and that will give you the amount of watts being used at that time. In other words if your LCD meter says the batteries are getting 35 amps charge and you have 13.6 volts to the batteries then 35amps x 13.6volts = 476 watts being utilized from the Solar Panels. This is only approximate because there are various losses but the figure will be pretty close. Yes you can get a close approximate figure but solar conditions vary constantly. I turned on everything in my shop so the inverter called for a lot of amps from the batteries and thus the solar controller increases the amperage output to the batteries. Take the amperage figures from the LCD display and multiply it by the voltage of the batteries and that will give you the amount of watts being used at that time. In other words if your LCD meter says the batteries are getting 35 amps charge and you have 13.6 volts to the batteries then 35amps x 13.6volts = 476 watts being utilized from the... » Read More Yes you can get a close approximate figure but solar conditions vary constantly. I turned on everything in my shop so the inverter called for a lot of amps from the batteries and thus the solar controller increases the amperage output to the batteries. Take the amperage figures from the LCD display and multiply it by the voltage of the batteries and that will give you the amount of watts being used at that time. In other words if your LCD meter says the batteries are getting 35 amps charge and you have 13.6 volts to the batteries then 35amps x 13.6volts = 476 watts being utilized from the Solar Panels. This is only approximate because there are various losses but the figure will be pretty close. « Show Less