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notyoung
04/04/2024
For what it is capable of, the inverter works. The waveform is clean (oscilloscope) and the voltage is correct. However, the inverter just barely manages to handle 500 watts. It can start a cold "500 watt" halogen work light (as measured by a KillAWatt meter, that light draws 440 watts) plus a 100 watt incandescent bulb.
The inverter can NOT power a 650 watt hot air gun (for heat shrink tubing) or a 750 watt space heater.
For the delivered price of about $50US, it's a very good deal for a 500 watt pure sine wave inverter. Had they initially labeled this as a "500 watt inverter" and sold it for the current price, I would have given it 5 stars for having an accurate and truthful description and being a very good buy. The meters for DC input volts and AC output volts are close.
I'm aware that the ad writers may know near zero about anything electrical or electronic and that lack of knowledge is painfully on display when they list totally impossible power levels from very small devices.
2000W 太陽光発電 純正弦波パワーインバーター デジタルディスプレイ付き デュアルUSB
US$65.85
US$139.99
0
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notyoung
20/08/2023
notyoung
24/02/2024
notyoung
20/12/2023
尋ねた gallomimia に 2023-12-02 03:11:59
notyoung Not mentioned in the one page manual.
2023-12-19 05:18:53 役に立つ (0)回答 (1)
尋ねた BG431216625 に 2023-11-03 09:17:51
notyoung Yes. It's switchable from C to F.
2023-12-19 05:18:18 役に立つ (0)回答 (1)
Q: I want to weld an existing metal strip. What thickness can it weld?
尋ねた BG416654423 に 2023-03-08 11:42:03
notyoung Welding thickness: 0.1-0.15mm
2023-03-08 12:51:56 役に立つ (0)回答 (3)
Q: Does it have an activity (read/write) indicator(s)?
尋ねた BG513217491 に 2022-12-07 08:36:42
notyoung Not that I noticed ;-) Just power.
2022-12-07 02:58:21 役に立つ (1)回答 (7)
Q: what is the white wire for?
尋ねた BG131214613 に 2022-07-23 05:39:58
notyoung Red is positive power. Black is negative power. White goes to voltage to be read. Back of PCB has "Vin".
2022-07-24 09:42:29 役に立つ (2)回答 (2)
尋ねた BG614108143 に 2022-06-10 04:15:34
notyoung No. The two inputs are simply in parallel to allow using smaller wire from the solar panels. Be aware that the PowMr has limits on the lowest and highest solar panel voltages for a given battery bank, such as 20-80 volts solar for a 12 volt battery. Read the manual carefully and be very aware that the PowMr REQUIRES at least 20 volts solar input for a 12 volt battery. That means a single 100 watt panel will probably NOT work as the panel's under-load voltage will be in the range of 17-18 volts and that's not enough.
2022-06-17 03:52:11 役に立つ (1)回答 (2)
Q: Good day. Can I test 1.5V,4V and 9V Batteries with this multimeter?
尋ねた goldencosta に 2021-06-09 06:20:03
notyoung You can measure the voltage of the batteries but that tells you very little about the battery's remaining capacity. For that, you need a battery tester which tests the battery under load.
2021-06-09 04:22:25 役に立つ (0)回答 (8)
尋ねた BG851134312 に 2021-02-19 04:05:10
notyoung No wattage ratings. The 4 models are rated in lumens: A=1000, B=1500, C=3000, D=4500. You can find charts of "lumens to incandescent watts" online.
2021-02-19 05:32:59 役に立つ (1)回答 (3)
Q: Does the remote need batteries?
尋ねた DSQUARED に 2021-02-12 07:22:55
notyoung Yes.
2021-02-12 04:57:34 役に立つ (0)回答 (2)
尋ねた BG151143162 に 2020-09-15 02:10:40
notyoung The output current is determined by the chips used in the DC-DC converter. Using a larger battery will provide longer charging time but will NOT increase the output current.
2020-09-15 11:19:59 役に立つ (0)回答 (1)
Q: Can I use with Lead-Acid battery?
尋ねた witb に 2020-08-07 12:45:23
notyoung You can use it with any type battery IF you set the voltage range correctly.
2020-08-07 01:17:04 役に立つ (1)回答 (1)
saijulie Thanks for your information to aware about SOLAR Panel
2019-11-06 08:24:24 役に立つ (11)回答 (2)
notyoung Soundsvery much like the older MakeSkyBlue firmware which didn't respond well to solar changes and sometimes not to steady solar power for hours - just taking the panels to their minimum voltage and not doing the MPPT check again. It seems programming an MPPT controller to truly track the solar input as something of an art and not understood by all who try.
RblU22
07/03/2019
2
コメント (1)