# RAVPower 300W Portable Power Station

## RAVPower 300W Portable Power Station

In the description it says 70200mAh, but in the specs it says 10600mAh (under AC output) so which is it?

In the description it says 70200mAh, but in the specs it says 10600mAh

It sounds like those are two different ratings. 70,200mAh is the battery capacity, and 10,600mAh is the AC outlet capacity. I admit thatâ€™s a strange way to rate an AC outlet, but it may be a way to account for the loss required to convert the DC output of the battery to AC line output. Just a guess.

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Even that seems a bit odd. Inverters usually come with a 25% capacity penalty. Either someone got their math wrong or that is one crazy inefficient inverter (85% loss??).

Itâ€™s not â€ślossâ€ť, itâ€™s that mAh is dependent on voltage, and the battery is almost certainly not at 120V. Power (watt hours) would be more consistent (and useful). Iâ€™m guessing they are saying that this has a 70,200mAh battery at ?? volts, and this translates to 10,600Ah available after the inverter losses and voltage conversion.

Edit: it seems that they are quoting 70,200mAh for the 3.6V batteries, giving a total energy of 252.7 Wh. I have no idea where 10,600mAh might come in. 252.7Wh implies 2106mAh at 120V.

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Sorry if I missed it. Is this new or refurbished

Amperage is voltage-dependent. Using the water example, voltage is pressure, and amperage is flow speed. If you have 300W of power, you can deliver that in 3.7V for 70.2 Ah, or you can deliver it at 120V for 2.5Ah.

Like MightyYar, I donâ€™t know where the 10.6Ah figure comes from. That would be less than 30V. Or a capacity of 2kilowatt-hours for 120V.

Looking at the specs, it says 10.6Ah at 20V/3A. There are a pair of 20V DC ports on the side, so thatâ€™s likely where the figure came from.

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The manual has a slightly different table.

The â€śRated Capacityâ€ť is broken out onto its own line:

That voltage/amp matches the output of the â€śPDâ€ť port (USB-C as far as I can tell).

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My best guess is that they accidentally listed the 20V output under â€śACâ€ť. The math works: 252.7Wh/20V = 12635mAâ€¦ close? Weird that they are losing 16% in the DC boost converterâ€¦

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Itâ€™s new. Condition is listed under the price.

So, what would this actually be able to run?

At 300 Watts, not muchâ€¦but depending on your needs, it could be your primary charging station. I would use this as a â€śhome baseâ€ť charging station and portable chargers for when traveling on foot.

â€¦and this list of reviews should help you compare and decide based on your needs. These are strictly/mostly power inverters, not a power station. So, something also has to power these inverters. Again, depending on your needs and resources, this might be perfect, or worthless.

1: Product description The capacity is 70200mAh, which refers to the battery cell capacity. This capacity is calculated based on 5V
10600mAh refers to the capacity of C port when outputting 20V/3A, which is based on 20V.
Converted to 5V capacity, approximately (20/5)*10600=42400mAh,
The actual usable capacity ratio is 42400/70200=60.3% (the usable capacity ratio of the mobile power supply is 60%)

85% is worth the output energy, not the capacity, the calculation method is as follows
(70200mAh*3.6V)*85%=214.7Wh (output effective energy)

the output energy is (70200mAh*3.6V)85%=214.7Wh
The effective output capacity is as follows
According to 5V output: 70200
60%=42120mAh
20V output, 10600mAh

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the output energy is (70200mAh*3.6V) 85%=214.7Wh
The effective output capacity is as follows
According to 5V output: 70200
60%=42120mAh
20V output, 10600mAh

Thatâ€™s my guess as well. And 16% losses is actually pretty typical for a 3.7->5V boost converter.

Yeah I guess Iâ€™m used to using them at much lower current levels (mA), where they normally exceed 90% efficiency and can climb over 95% when in uA ranges. This seems to indicate 20V at 3A, which is a lot of current, so that probably drags down efficiencies.

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It said "Solar " in the title. It is not unless you buy a separate solar charger. Well played, well playedâ€¦