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Woot! Auto Tech: HALO Bolt 44,400 mWh Compact Portable Car Jump Starter $30 & More + Free Shipping w/ Prime

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Joined Jan 2007
L10: Grand Master
> bubble2 28,291 Posts
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cgigate
03-13-2024 at 11:07 PM.
03-13-2024 at 11:07 PM.
44,400 mWh = 12,000mah
Very small battery 😅
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Joined Aug 2013
L7: Teacher
> bubble2 2,831 Posts
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ChillO8033
03-14-2024 at 07:59 AM.
03-14-2024 at 07:59 AM.
Quote from cgigate :
44,400 mWh = 12,000mah
Very small battery 😅

other batteries don't jump start your car. I have the larger one with the air nozzles, works great in emergencies
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Joined Dec 2008
L6: Expert
> bubble2 1,161 Posts
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The_Whaler
03-14-2024 at 08:01 AM.
03-14-2024 at 08:01 AM.
The NOCO GB150 is an awesome jump pack. I have two and have used them many times to jump-start everything from scooters to pickup trucks, and it has never failed me or even hesitated.
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Joined Sep 2013
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> bubble2 130 Posts
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GottaLoveIttt
03-14-2024 at 08:17 AM.
03-14-2024 at 08:17 AM.
Quote from cgigate :
44,400 mWh = 12,000mah
Very small battery 😅
+1 to your post.

Assuming a car battery of 12V, this has 44,400mWh/12V = 3,700mAh

If we assume 5V for USB charging, this has 44,400mWh/5V=8,880mAh

Is this correct?
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Joined Jan 2007
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> bubble2 28,291 Posts
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cgigate
03-14-2024 at 08:37 AM.

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

03-14-2024 at 08:37 AM.
Quote from GottaLoveIttt :
+1 to your post.

Assuming a car battery of 12V, this has 44,400mWh/12V = 3,700mAh

If we assume 5V for USB charging, this has 44,400mWh/5V=8,880mAh

Is this correct?
No, and yes.
The Li-on battery is based on a 3.7-volt cell. The manufacturer calculates how many cells are put in to label the capacity: 4x 3000 mA cells to be 12,000 mA on the label. 44,4000 mWh is exactly 12,000 mah for normal Li-on battery pack labeling.
"Wh" is actually more accurate than "mah" to describe the capability...
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Last edited by cgigate March 14, 2024 at 09:21 AM.

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HIDDENAscender03-14-2024 at 08:55 AM.
Joined Aug 2008
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> bubble2 427 Posts
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jramirex
03-14-2024 at 09:07 AM.

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

03-14-2024 at 09:07 AM.
Quote from Ascender :
Jump boxes are cool, but a set of quality jumper cables will last forever and never fail.

True, but the jumper packs don't require another vehicle and a stranger to jump your car or other equipment. I've used a different one to start a mini excavator and diesel generators.
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HIDDENAscender03-14-2024 at 09:15 AM.
Joined Sep 2007
You better be Gud!!!!!!!!
> bubble2 9,014 Posts
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Santa_Claus
03-14-2024 at 09:45 AM.
03-14-2024 at 09:45 AM.
Needs more zizzle.
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Joined Apr 2013
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> bubble2 1,316 Posts
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nicksblackroush
03-14-2024 at 11:28 AM.
03-14-2024 at 11:28 AM.
I have a different halo bolt, and it jump started our expedition a couple of times without issue. I was glad we had bought one so my wife wasn't stranded.
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Joined Jul 2013
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> bubble2 1,797 Posts
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AnthonyA1569
03-14-2024 at 11:40 AM.
03-14-2024 at 11:40 AM.
Is there usb-c to jump starter converter that can work with any power bank (or phone battery) ?
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Joined Sep 2021
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> bubble2 1,278 Posts
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ThriftyIdea6692
03-14-2024 at 12:11 PM.
03-14-2024 at 12:11 PM.
Quote from Santa_Claus :
Needs more zizzle.
According to my research, this one is rated 49700 mZh (milliZizzle Hours, of course) worth, how much more do you recommend?
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Joined Sep 2018
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> bubble2 60 Posts
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Gbfromtenn
03-14-2024 at 12:12 PM.
03-14-2024 at 12:12 PM.
I got the vacuum/car booster recently from Walmart @$25
Started my dead 24hp mower and dead mustang battery just fine.
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Joined Sep 2007
You better be Gud!!!!!!!!
> bubble2 9,014 Posts
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Santa_Claus
03-14-2024 at 12:14 PM.
03-14-2024 at 12:14 PM.
Quote from ThriftyIdea6692 :
According to my research, this one is rated 49700 mZh (milliZizzle Hours, of course) worth, how much more do you recommend?

How could I have been so careless? 1.21 gigawatts!
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