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expiredniki4h | Staff posted May 12, 2026 2:09 PM

AstroAI S8 8000mAh 1500A 12V Car Battery Jump Starter

$19

$60

68% off
+ Free S&Hat Amazon
49.6K Views
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Deal Details
This popular Frontpage deal is still available.

AstroAI Direct via Amazon has AstroAI S8 8000mAh 1500A 12V Car Battery Jump Starter (Orange) for $44.99 - $25.65 when you apply promo code GD3TVIG5 at checkout = $19.34. Shipping is free.

Thanks to Deal Hunter niki4h for sharing this deal.
  • Note: Product page(s) may say Prime Exclusive, but when you apply promo code at checkout, final price will be same for Prime/non-Prime. Promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.
Features:
  • The car jumper starter portable pack has a 45C high-rate lithium battery and 37WH capacity that can start 6.0 L gas/3.0 L diesel engines and other 12 V vehicles like motorcycles, cars, SUVs, pickups, or lawnmowers.
  • This jump starter's powerful 1500A peak suit current quickly starts low-voltage and fully-drained batteries

Editor's Notes

Written by persian_mafia | Staff

Original Post

Written by niki4h | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
This popular Frontpage deal is still available.

AstroAI Direct via Amazon has AstroAI S8 8000mAh 1500A 12V Car Battery Jump Starter (Orange) for $44.99 - $25.65 when you apply promo code GD3TVIG5 at checkout = $19.34. Shipping is free.

Thanks to Deal Hunter niki4h for sharing this deal.
  • Note: Product page(s) may say Prime Exclusive, but when you apply promo code at checkout, final price will be same for Prime/non-Prime. Promo codes are typically for one-time use and don't always apply seamlessly. If you run into this issue, refresh the page, re-enter the code, or revisit the cart page.
Features:
  • The car jumper starter portable pack has a 45C high-rate lithium battery and 37WH capacity that can start 6.0 L gas/3.0 L diesel engines and other 12 V vehicles like motorcycles, cars, SUVs, pickups, or lawnmowers.
  • This jump starter's powerful 1500A peak suit current quickly starts low-voltage and fully-drained batteries

Editor's Notes

Written by persian_mafia | Staff

Original Post

Written by niki4h | Staff

Community Voting

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+237
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116 Comments

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May 14, 2026 1:50 PM
21 Comments
Joined Sep 2007
Talk4CheapMay 14, 2026 1:50 PM
21 Comments
These are great to have in a pinch, I'm in for one
May 14, 2026 3:30 PM
34 Comments
Joined Sep 2023
SmilingRaccoon1274May 14, 2026 3:30 PM
34 Comments
I've needed one of these for a while. Just ordered. Thanks.
May 14, 2026 8:08 PM
1.3K Comments
Joined May 2018
Oil_BurnerMay 14, 2026 8:08 PM
1.3K Comments
Quote from sylentz :
300 CCA, pass unless you have a small sedan
It doesn't work that way
May 14, 2026 8:13 PM
1.3K Comments
Joined May 2018
Oil_BurnerMay 14, 2026 8:13 PM
1.3K Comments

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

For everyone to understand how a battery jump starter works. 8000mAH and 1500A, these large numbers don't matter at all, what matters is the Watt/Hr rating, which is 37wH in this case.
Car engines typically need:
* 200–400A for small/medium engines
* 400–700A for large engines or diesel
The Peak power delivered can be estimated briefly:
P = V × I = 12V × 1500A = 18,000W (for millisecs!)
Engine start typically takes 1–3 seconds of cranking.
* Even at 400A for 3 seconds:
12V × 400A × (3s / 3600s) ≈ 4Wh
That's a small fraction of the 37Wh available.
If this jump starter really has 37wH in store when fully charged, it should be good to start the car.
Last edited by Oil_Burner May 14, 2026 at 01:17 PM.
5
3
May 14, 2026 8:17 PM
2.2K Comments
Joined Jul 2014
sylentzMay 14, 2026 8:17 PM
2.2K Comments
Quote from Oil_Burner :
For everyone to understand how a battery jump starter works. 8000mAH and 1500A, these large numbers don't matter at all, what matters is the Watt/Hr rating, which is 37wH in this case.Car engines typically need: * 200–400A for small/medium engines * 400–700A for large engines or dieselThe Peak power delivered can be estimated briefly: P = V × I = 12V × 1500A = 18,000W (for millisecs!)Engine start typically takes 1–3 seconds of cranking.* Even at 400A for 3 seconds: 12V × 400A × (3s / 3600s) ≈ 4Wh That's a small fraction of the 37Wh available.If this jump starter really has 37wH in store when fully charged, it should be good to start the car.
I used this on our V-6 3.5L that has a 650CCA battery and it failed miserably. The Ultra could crank it no issue. This is not capable of cranking anything over 300 CCA. They even list it on the box itself just don't show images or list in the actual specs
1
May 14, 2026 8:18 PM
37 Comments
Joined Dec 2025
landlord73May 14, 2026 8:18 PM
37 Comments
Comes up $44.98 for me with the coupon code.
May 14, 2026 8:20 PM
1.3K Comments
Joined May 2018
Oil_BurnerMay 14, 2026 8:20 PM
1.3K Comments
Quote from sylentz :
I used this on our V-6 3.5L that has a 650CCA battery and it failed miserably. The Ultra could crank it no issue. This is not capable of cranking anything over 300 CCA. They even list it on the box itself just don't show images or list in the actual specs
And I have started my Trailblazer 4.2Ltr engine numerous with no issues with this jump starter, go figure! I have my truck sitting, not driven for extended periods of time, and most times I have to use this jump starter. Am I just lucky ?

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May 14, 2026 8:21 PM
37 Comments
Joined Dec 2025
landlord73May 14, 2026 8:21 PM
37 Comments

Our community has rated this post as helpful. If you agree, why not thank landlord73

Quote from Oil_Burner :
For everyone to understand how a battery jump starter works. 8000mAH and 1500A, these large numbers don't matter at all, what matters is the Watt/Hr rating, which is 37wH in this case.
Car engines typically need:
* 200–400A for small/medium engines
* 400–700A for large engines or diesel
The Peak power delivered can be estimated briefly:
P = V × I = 12V × 1500A = 18,000W (for millisecs!)
Engine start typically takes 1–3 seconds of cranking.
* Even at 400A for 3 seconds:
12V × 400A × (3s / 3600s) ≈ 4Wh
That's a small fraction of the 37Wh available.
If this jump starter really has 37wH in store when fully charged, it should be good to start the car.
Just no. If Watt/Hr is what matters and it takes 4Wh, my portable USB charger is 67Wh. I should be able to jumpstart my car more than 15 times with that. But I can't.
Last edited by landlord73 May 14, 2026 at 05:20 PM.
3
3
May 14, 2026 8:25 PM
2.2K Comments
Joined Jul 2014

This comment has been rated as unhelpful by Slickdeals users.

May 14, 2026 8:47 PM
1.3K Comments
Joined May 2018
Oil_BurnerMay 14, 2026 8:47 PM
1.3K Comments
Quote from landlord73 :
Just no. If Watt/Hr is what matters, my portable USB charger is 67Wh. I should be able to jumpstart my car with that. But I can't.
OK, I'll continue to talk to my drywall :-)
1
May 14, 2026 11:59 PM
37 Comments
Joined Dec 2025
landlord73May 14, 2026 11:59 PM
37 Comments
Quote from Oil_Burner :
OK, I'll continue to talk to my drywall :-)
Maybe when you're done with that you can watch the paint dry.
1
May 15, 2026 1:59 AM
18 Comments
Joined Dec 2016
MDeal23May 15, 2026 1:59 AM
18 Comments
Does this self discharge in a month or so?
Last edited by MDeal23 May 14, 2026 at 07:02 PM.
May 15, 2026 4:49 AM
4.1K Comments
Joined Sep 2006
willygeeMay 15, 2026 4:49 AM
4.1K Comments
very tempted but just wish it had the inflator function too.
May 15, 2026 5:04 AM
372 Comments
Joined Jul 2020
Phixion35May 15, 2026 5:04 AM
372 Comments

Our community has rated this post as helpful. If you agree, why not thank Phixion35

Quote from sylentz :
Your parasitic drain on your trash chevy is not the typical Jump people need in an emergency. This is good for bare minimum jumps or slightly low batteries like an interior light left on. It's listed at 300CCA. Anecdotal is anecdotal just as my experience showed it's severely lacking despite the fake 1500A peak claim
Your "trash Chevy" comment automatically disqualifies you. That definitely is not how to make a point, and at least be correct. An interior light left on can completely drain a battery which is why you won't be able to start. In your case, considering users with larger V8 engines can use this successfully tells me either you weren't using it correctly, OR your battery was too far gone for this to work well.

CCA is battery health. You can have a fully charged battery and still not be able to start your car or even crank if the battery health (CCA) is too low. In that case, you need a new battery, full stop.

Also, this unit also states its normal range is 300-500A. Not sure when exactly the 1500A comes in, but it can't be that fake when others out there claim A LOT higher, like 5000A in similar sized units. And yes, parasitic drain IS a typical or at least common type of drain many people use these for even if its purpose is for "emergencies." Your experience is just one, the exception, not the rule and the reviews reflect that as does my own personal experience with it.
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May 15, 2026 5:55 AM
977 Comments
Joined Aug 2022
MidnightGamerMay 15, 2026 5:55 AM
977 Comments
In for one and the code worked. I have AAA, but nice to have when strangers ask if I can give them a jump start. Easier than using jumper cables.

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