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expired Posted by LovelyCheetah | Staff • Mar 14, 2024

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

$35

$70

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67 Comments

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Mar 14, 2024
28,289 Posts
Joined Jan 2007
Mar 14, 2024
cgigate
Mar 14, 2024
28,289 Posts
44,400 mWh = 12,000mah
Very small battery 😅
8
Mar 14, 2024
2,963 Posts
Joined Aug 2013
Mar 14, 2024
ChillO8033
Mar 14, 2024
2,963 Posts
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
1
Mar 14, 2024
1,198 Posts
Joined Dec 2008
Mar 14, 2024
The_Whaler
Mar 14, 2024
1,198 Posts
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.
1
Mar 14, 2024
177 Posts
Joined Sep 2013
Mar 14, 2024
GottaLoveIttt
Mar 14, 2024
177 Posts
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?
5
Mar 14, 2024
28,289 Posts
Joined Jan 2007
Mar 14, 2024
cgigate
Mar 14, 2024
28,289 Posts

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

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...
Last edited by cgigate March 14, 2024 at 09:21 AM.
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Mar 14, 2024
734 Posts
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Mar 14, 2024
443 Posts
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Mar 14, 2024
jramirex
Mar 14, 2024
443 Posts

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

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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Mar 14, 2024
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Mar 14, 2024
9,505 Posts
Joined Sep 2007
Mar 14, 2024
Santa_Claus
Mar 14, 2024
9,505 Posts
Needs more zizzle.
1
Mar 14, 2024
1,462 Posts
Joined Apr 2013
Mar 14, 2024
nicksblackroush
Mar 14, 2024
1,462 Posts
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.
Mar 14, 2024
1,834 Posts
Joined Jul 2013
Mar 14, 2024
AnthonyA1569
Mar 14, 2024
1,834 Posts
Is there usb-c to jump starter converter that can work with any power bank (or phone battery) ?
2
Mar 14, 2024
1,538 Posts
Joined Sep 2021
Mar 14, 2024
ThriftyIdea6692
Mar 14, 2024
1,538 Posts
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?
1
Mar 14, 2024
90 Posts
Joined Sep 2018
Mar 14, 2024
Gbfromtenn
Mar 14, 2024
90 Posts
I got the vacuum/car booster recently from Walmart @$25
Started my dead 24hp mower and dead mustang battery just fine.
Mar 14, 2024
9,505 Posts
Joined Sep 2007
Mar 14, 2024
Santa_Claus
Mar 14, 2024
9,505 Posts
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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Mar 14, 2024
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Mar 14, 2024
ThriftyIdea6692
Mar 14, 2024
1,538 Posts
Quote from Ascender :
Agreed. I'm just saying I'd suggest everyone put their money toward good cables first. Then once you've got those, if you want a jump box too, consider that a supplemental/additional option.
I guess that depends on what sort of dead battery situations you expect to find yourself in - to me that's exactly backwards. Since I bought my first jump box I've never taken the jumper cables out of the trunk once. Jump box is first, easiest, fastest, best resort, jumper cables last resort. Rarely, if ever, is there anyone around to jump from when I have a dead battery (and with several vehicles >25 years old it's not infrequent)

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