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iconian | Staff 26K Views
May 30, 2022 1:46 PM

1000W 1100Wh (300Ah) Topshak Portable Power Station $450 + free s/h at Walmart

$450

$857

47% off
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$450 + free s/h
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May 30, 2022 2:20 PM
1.6K Comments
Joined Apr 2010
cal3thousandMay 30, 2022 2:20 PM
1.6K Comments
300Ah.

Not sure why companies insist on using mAh for anything larger than a smartphone.

edit: and to be honest, only Watt-Hours ( Wh ) makes sense as that is true capacity.
Last edited by cal3thousand May 30, 2022 at 07:25 AM.
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May 30, 2022 2:22 PM
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iconianMay 30, 2022 2:22 PM
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Quote from cal3thousand View quoted comment :
300Ah.

Not sure why companies insist on using mAh for anything larger than a smartphone.

you know how that goes, bigger the #, then it must be better!. updated, btw Smilie
May 30, 2022 2:58 PM
44 Comments
Joined May 2022
MikeVanTsoMay 30, 2022 2:58 PM
44 Comments
Compared to pricing from other vendors for similar units, this may be slick. It's worth mentioning, due to the likely practical application, that this is not 300ah at 12v. As mentioned, the Wh is the important and relevant spec here. At 12v this has a capacity of ~ 92Ah.

This is likely the same unit, for slightly cheaper:
https://www.walmart.com/ip/Alfuhe...hbdg=L1400
Last edited by MikeVanTso May 30, 2022 at 08:03 AM.
May 30, 2022 3:10 PM
3.7K Comments
Joined Dec 2005
ArcanlawMay 30, 2022 3:10 PM
3.7K Comments
Can I use something like this as a large UPS for my furnace fan, to get us an extra few hour of runtime in the worst case in the dead of winter?
1
May 30, 2022 3:12 PM
82 Comments
Joined Aug 2014
gemideals223May 30, 2022 3:12 PM
82 Comments
oh are we playing voltage marketing tricks now? at 3.7v, I just bought 487ah power station as well , and it was only $300
1
May 30, 2022 3:23 PM
117 Comments
Joined Dec 2011
ahhhhnooooMay 30, 2022 3:23 PM
117 Comments
Quote from gemideals223 View quoted comment :
oh are we playing voltage marketing tricks now? at 3.7v, I just bought 487ah power station as well , and it was only $300
Do you have a link? I'm a little confused since it says "1100Wh" as the capacity, and similar units are over $900 (according to Walmart app). What's the gotcha here?
May 30, 2022 3:46 PM
44 Comments
Joined May 2022
MikeVanTsoMay 30, 2022 3:46 PM
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Quote from ahhhhnoooo View quoted comment :
Do you have a link? I'm a little confused since it says "1100Wh" as the capacity, and similar units are over $900 (according to Walmart app). What's the gotcha here?
See my post above. Not a "gotcha" but definitely room for clarification for folks that aren't as knowledgeable.

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May 30, 2022 3:47 PM
395 Comments
Joined Apr 2015
Birdlawyer93May 30, 2022 3:47 PM
395 Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from ahhhhnoooo View quoted comment :
Do you have a link? I'm a little confused since it says "1100Wh" as the capacity, and similar units are over $900 (according to Walmart app). What's the gotcha here?
The watt hours are accurate. The mAh spec is misleading because they don't state the voltage. Watt hours = amp hours x volts, so one amp hour at 100v is 100wH, one amp hour at 10v is 10wH.
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May 30, 2022 3:56 PM
181 Comments
Joined Nov 2018
WittyHamster578May 30, 2022 3:56 PM
181 Comments

Our community has rated this post as helpful. If you agree, why not thank

Wh is all that really matters. If this is 1kw then you can run something pulling 100watts for 10hrs… etc etc..
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May 30, 2022 4:01 PM
712 Comments
Joined Sep 2018
ProtegeMay 30, 2022 4:01 PM
712 Comments
Given the current $ of Li battery this is a good deal. You could power a Midea U AC 8k. Combine it with $50 300w solar panels on eBay.
3
May 30, 2022 4:09 PM
106 Comments
Joined Jul 2007
LankHairdooMay 30, 2022 4:09 PM
106 Comments
The specs are very confusing on this. It weighs 14kg so it really may be 1100AH. The reviews do not look that bad but could be fake. No way to tell the quality of the batteries and it doesn't say anything about an MPPT controller for solar.
May 30, 2022 4:10 PM
273 Comments
Joined Jun 2013
CaptainElwoodMay 30, 2022 4:10 PM
273 Comments
Seems like a pretty good deal for the capacity but it also looks like the solar mppt has a max of 100w... Which is why that charge time is so high for solar. Although it's hard to tell, I found the 100w max info on the Amazon listing.
May 30, 2022 4:25 PM
712 Comments
Joined Sep 2018
ProtegeMay 30, 2022 4:25 PM
712 Comments
Quote from CaptainElwood View quoted comment :
Seems like a pretty good deal for the capacity but it also looks like the solar mppt has a max of 100w... Which is why that charge time is so high for solar. Although it's hard to tell, I found the 100w max info on the Amazon listing.
If it maxes out at 100w its a better deal to buy a 12V 100Ah Li Batt on ebay for $330 + $100 1kw inverter + $20 100amps 12V PWM solar charge controller.
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May 30, 2022 4:49 PM
1.8K Comments
Joined Feb 2015
kherbinoskieMay 30, 2022 4:49 PM
1.8K Comments
For those who are crying about mAh, you can ignore it and look at the WH instead. 3.7v x 300,000 mAh = 1100Wh.

For some reason, cannot find the Battery chemistry on the spec sheets. Or nothing mentioned about the number of charge cycles.

The AC and solar charging is really slow. In comparison, others can charge a 1100Wh in 1-2 hrs not 7hrs like on this.

Other than that, the 1100wh capacity and 1000w for $450 is a very nice price.

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May 30, 2022 5:10 PM
1.6K Comments
Joined Oct 2004
tenkenMay 30, 2022 5:10 PM
1.6K Comments
Quote from ahhhhnoooo View quoted comment :
Do you have a link? I'm a little confused since it says "1100Wh" as the capacity, and similar units are over $900 (according to Walmart app). What's the gotcha here?
Quote from MikeVanTso View quoted comment :
See my post above. Not a "gotcha" but definitely room for clarification for folks that aren't as knowledgeable.
Quote from mmarvin1 View quoted comment :
The watt hours are accurate. The mAh spec is misleading because they don't state the voltage. Watt hours = amp hours x volts, so one amp hour at 100v is 100wH, one amp hour at 10v is 10wH.
don't know anything about the product or youtube reviewer, but this review https://www.youtube.com/watch?v=pi9IrBX2PQg shows this being able to, at least for a short period of time, sustain a peak of over 1000w

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