popularSickerDealer posted Mar 08, 2026 04:36 PM
Item 1 of 8
Item 1 of 8
popularSickerDealer posted Mar 08, 2026 04:36 PM
Anker Prime Power Bank, 26,250mAh 3-Port Portable Charger with 300W Max Output $124.99
$125
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99.75Whr storage (remember, amps is a useless marketing number without voltage which calculates to about 3.8v).
But, it can only charge a MackBook Pro M4 0.8 times. Assuming they're referring to the 16" which has a 100Whr battery, that implies about a 20% loss. If it's the smaller 14" which has a 72.4Whr battery, then we're looking at losses of 42%.
Either way, assume the effective capacity is closer to 60-80 Whrs.
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99.75Whr storage (remember, amps is a useless marketing number without voltage which calculates to about 3.8v).
But, it can only charge a MackBook Pro M4 0.8 times. Assuming they're referring to the 16" which has a 100Whr battery, that implies about a 20% loss. If it's the smaller 14" which has a 72.4Whr battery, then we're looking at losses of 42%.
Either way, assume the effective capacity is closer to 60-80 Whrs.
Some energy loss (typically 30 - 45%) is normal during power conversion because of battery and circuitry design. After conversion, a fully charged 26,250 mAh power bank provides about 15,200 mAh to your devices.
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