Difference between mAh and mWh

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  #1  
Old 10-18-19, 09:43 AM
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Difference between mAh and mWh

I am interested in purchasing either an iDeaPlay or a Halo Bolt charging device the iDeaPlay says it is 12000 mAh, while the Halo Bolt says it is 44000 mWh.

Which is best, or which has the most power?
 
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Old 10-18-19, 09:52 AM
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How many volts are the units?
To get the amp hours divide the watt hours by the voltage. Then you can compare.
12000 mAh (milliamp hours) = 12 amp hours.
44000mWh = 44 watt hours
Assuming these units are 120 volt then 44000mWh = 3.7 amp hours
 
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Old 10-18-19, 10:37 AM
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I believe the OP is referring to automobile jump start units.
Ratings are just a number on a tag and they are often inflated or shown in obscure ways.

There are videos on most of the chargers. Watch them. Read the reviews.
 
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Old 10-18-19, 12:34 PM
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When searched the units they came up as battery packs for charging your cell phone, ipads, etc. so I used 120 volts.
 
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Old 10-18-19, 01:05 PM
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If they are strictly for charging devices then they would be 5v USB power.
 
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Old 10-18-19, 06:34 PM
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If you can provide exact model numbers we can give a better comparison.
So far it has all been guessing.
 
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