Good morning, all this is the fremo x, 700 portable power station. It's a 662 watt hour power bank with lithium ion phosphate cells. It has a 600 watt, pure sine wave inverter, with a peak power of 1200 watts. Now this is a pre-production unit.

It's also a 120 volt ac output unit, but i'll put it through its paces and see what i can get out of it. So, let's have a look at the front panel. Well up here. We've got four usb type a's.

Now you can pull three amps from these. You can pull three amps from a pair there's a usbc 20 watt there's also a usbc 100 watt. Here are the two ac outlets and down here we have a 12 volt cigar lighter or accessory socket 10 amp output. That's 120 watts.

This is a dc 5521, 5.5, 2.1, 12 volt output and that's 3 amps, and this is the charge ac, adapter or solar panel input. It can run up to 180 watts on the rear of the unit, there's actually a little flashlight. Now this flashlight can be taken out and carried around as a completely separate item, but when it's in the unit, you can use this button on the top to switch it on bright, to switch it on dim and there's an sos function on the top of the Unit there is the display. Now this looks like a full color liquid crystal display.

It shows state of charge in big, bold letters. It also has a state of charge bar graph, which pulsates strangely it looks like it's sound activated, but i don't think it is. It has a state of charge indicator for the portable flashlight. It has bar graphs and these very tiny watt meters for input, power and output power, and there are four buttons here power on off.

I will switch it off by pressing and holding that when you switch it on by pressing and holding the button, it plays a little tune. You can switch the dc section on and off here, although the usb is on all the time you can switch the ac section on and off here and the flashlight you can switch on and off with this button accessories included. Are the power supply with its us to cloverleaf power? Lead i've managed to find a uk to cloverleaf to use instead of that and the power supply is a multi-voltage one, there's also a 12 volt dc car. To now this connector is not 7909, it's 7406.

So 7.4 millimeters outer diameter and a 0.6 millimeter pin and of course it's the same as the connector on the power supply and the other accessories supplied. This carry case, actually it's more of a protective case to keep the dust, i suppose off the unit. So the power supply is this one: it's uh, 100 to 240 volts on the input. The output is 24 volts, 7.5 amps, that's 180 watts and interestingly, this is the first piece of equipment.

I've seen with the new uk ca approval marking specifically for the uk, also supplied by fremo. Are these two things? This is the hyper 100 folding solar panel, and this is the portable power station insulated carrying bag, which can also double up as a cooler bag. So this is the insulated carrying bag fully lined and insulated, use it to carry the portable power station and then use it to keep your drinks cool. This is the hyper 100 folding solar panel.

Let's get it out of its box and set up. It looks like this little blue led on the box on the back, and there are three cables: there's the cable ending in a 7406 connector there's also a female version of that for paralleling two of these solar panels together and there is a usb type, a output And here are the technical specifications for the solar panel, full sun, solar test with the hyper 100 and the fremo x 700, and the input watt meter is saying: 63 watts test of the hyper 100 solar panel on the fremo x, 700 under a large cloud and The watt meter spends a lot of time on zero watts and then it goes up four eight ten and then drops back to zero, but when it drops to zero, it spends a lot of time on zero, three four, six, eight ten and back to zero. Now that's going to mean very long charge times under cloud. One thing to note is that when the unit is powered on, the display is always on it never times out and in addition to that, the usb section is always on as well test on one of the usb type a's we've got five volts on the output.

Let's turn up the current three amps, which is the maximum i can pull. The wattage on here is saying 15 watts on the unit here we're saying 17 watts, but it holds a reasonable 4.95 volts, then, with this 2 amp unit to the side of it. So that's a total of 5 amps. We've got a reading of 28 watts on the output power level and it can handle those two side by side.

But if i put one above the other, the bottom unit's taking 2 amps the top unit, the voltage is falling away. At 1.2, it's dropped to 4 volts. Now some usbc tests, i'm using the ravpower power bank, which will pull 30 watts on its usbc input. So, let's plug that into the 20 watt output of the x 700 9 volts 2.2 amps.

Now it's saying on the rui deng just under 20 watts. This is actually uh. Reading 28 watts. Sorry! So there's a bit of an overhead um in the usbc circuitry.

If i now plug it into the 100 watt output, the ruyden says 20 volts. This will pull 20 volts at 1.5 amps, that's 30.8 watts and we've got 32 watts on the output power meter on the x 700. Let's see what voltages are available on the usb type c i'll put my pd trigger on here. This is on the 20 watt socket we've got 5 volts, 9 volts and back to 5 volts.

So there are only two voltages available on the 20 watt socket. Let's go to the 100 watt socket 5 volts 9 volts 12 volts, 15 volts and 20 volts, so i can get all 5 usbc voltages from the 100 watt output. Now, let's do a test on the 100 watt usbc output. Now i believe this nimaso cable is only rated for 60 watts, so i'm not going to go up to the full 100 watts i'll need to switch this up to uh 20 volts to get the maximum power.

That's that's! 12. 15.. So 20 volts coming out of the usbc output. Let's start turning up some current and, as i say, go to about 60 watts, so it's 26 on there, 42 44..

Let's just take it a little bit higher watching this. What meter here? Oh 60, watts! So certainly it's happy with 60 watts. 66. What's indicated on the x 700 uh 57 watts indicated there.

So that's 20, volts, 3 amps, that's 60 watts. I don't take this cable uh, this nimisso cable, any higher, so now testing the 12 volt output, which i believe runs up to 3 amps. Let's find out i'll need to switch on the dc output section, so that's dc on got 11.7 volts on there. Just over 2 amps on the 12 volt output we're seeing 18 no 24 watts here and 25 watts indicated on the x 700.

Let's add a little bit, of course, and we've got an error message here: dc output overload. I didn't quite see what current that happened at 2.6. Amps 2.8 amps. Well, it cuts out a little bit low.

It was 2.88 amps, so it cuts out a little under three amps. Now, if i press this button, that seems to restore it 2.88 amps and there it goes again. So it's not quite three amps on that output. Now, let's check the cigarette lighter output, so that's got an output of 12 volts.

Let's take that up to around 10 amps uh 10.1 amps 11.3 volts now we're seeing 129 watts there we're seeing 116 watts there. It's certainly holding 10 amps, although the voltage has dropped a fair bit, take it up any higher than 10.2 and this thing overloads, which you'd expect charging test using the supplied ac adapter - and this is reading 175 watts. Now, let's check pass-through mode so i'll switch on the ac output. These light bulbs come on they're, quite dim because they're 240 volt light bulbs i'll look at getting some 110 volt light bulbs, but we've now got 175 watts on the input and 55 watts on the output.

So that's pass through mode confirmed. Let's do an inverter output test so switch on the ac and the output is about 115 volts ac confirmation that this is a pure sine wave output. There's the sine wave we've got 115 volts, or thereabouts and 0.06 kilohertz, which is 60 hertz and just a confirmation of the output frequency. That's 60.3 hertz.

According to this mus tool, right i've just charged the x 700 to 100 percent, but it's still pulling 173 watts. So there may be some meter calibration and or cell balancing going on at this point, so i will wait uh until the power meter drops down to zero watts, one 100 on the stage of charge indicator know what's coming in. So let's disconnect the ac power adapter. Now this is the only measuring device i could find that does 100 to 240 volts.

All the others are 240 volt. Only so i'll use this one. The only thing is this one doesn't have a memory, so i will have to watch the full discharge and make a mental note of the total kilowatt hours from the display there. So, let's start the full discharge test, i'm going to use an ant miner because the power supply for it is fine across a range of voltages.

Now i'm doing this at below its maximum power rating of 600 watts, because at 600 watts the battery tends to overheat i'll insert some clips showing the problems i was having. This is pulling 664 watts, so i'm over driving this unit by a good ten percent and there's some very warm air coming out of here. So i think, by running it a bit above its nominal maximum of 600 watts we're losing some energy there. Just after that, at about 47, it's actually said fan blockage.

It was getting very warm, so i think running it at 660. Watts is a bit high, i'll retweet the miner charge this back up and repeat the test. Now my crypto miner down there is pulling 540 watts 509.. So we got 509.

Oh that's interesting! So we got 509 watt hours. We got down to three percent and now we've got fan blockage which, to my mind, says the fans are running full throttle, but i can't keep the unit cool enough, probably not the electronics, because i think the fans are here at the top. It's probably the battery pack itself. That's got warm turn on the ac outlet.

The discharge test has started so it looks like it's drawing at the moment. 425 watts that'll probably go up a bit as the load warms up now down to 50 percent on the state of charge. Indicator we've been running for 40 minutes. The cryptocurrency miner is still pulling 440 watts and we've done 275 uh watt hours in terms of total energy from that 50 of the battery pack.

So doubling 275 is uh 550. I believe 550 watt hours. Now, in the manual we have a notional cell capacity of 662 watt hours. So if we knock off 10 percent for inefficiency of the inverter to ac, we get about 600 watt hours, so we're a little bit short at the moment.

I'll come back when we're near zero percent and we'll see what the total energy recorded is now down to 20 or 19 on here, and a little red low battery indicator has appeared. Let's just look at the stats here: 442 watt hours just over an hour and it's still pulling 440 watts and for the remaining 10 percent of the energy in the power bank i'll leave the camera running so that i can catch the eventual. What hour result on the watt meter 500 watt hours clocked up down to 8 state of charge, 3 522 523 and it shut off at 523 watt hours. The display was saying three percent, but then i briefly saw it say: zero percent and it's gone off.

I'm just going to turn the power back on. I don't want the ac to come on, particularly yeah. So now it's saying zero percent. So that's it 523 watt hours, it's a little bit uh below the 600 watt hours expected.

Given these numbers. To sum up my thoughts on the fremo x700, it's a very convenient uh form factor. I really like the always-on display. I like the always-on usb um, the 100 watt solar panel.

I only saw 64 watts. I think it was in full sun and there's a bit of an issue with the mppt in cloudy skies. When there's only about 10 watts available, it tends to hunt, it tends to cycle and spends a lot of time at zero watt. So it's a very slow charge.

If you don't have full sun a full discharge from 100 watts to zero watts at 600. Watts is not possible. It wasn't even possible at 540 watts. I had to drop it to under 500 watts to do the full discharge.

Now i think the problem is the battery getting warm and i think the solution to that might be to put some ventilation holes in the bottom. So as well as the fan drawing air from right to left across the electronics. It also draws air up from the bottom through the cells and that would keep the cells cool er. I do think it's the cells that are the problem they get hot.

The total battery capacity during the discharge test was a little bit lower than expected, but it's nice to see a unit with uh lithium ion phosphate cells. So those are my thoughts on the fremo x, 700 portable power station cheerio.