expiredSickerDealer posted Mar 08, 2026 04:36 PM
Item 1 of 8
Item 1 of 8
expiredSickerDealer posted Mar 08, 2026 04:36 PM
Anker Prime Power Bank, 26,250mAh 3-Port Portable Charger with 300W Max Output $124.99
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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.
https://slickdeals.net/f/19305510-costco-members-anker-solix-c300x-288wh-dc-power-station-100w-charger-100-free-s-h
https://www.costco.com/p/-/anker-...4000391740
https://slickdeals.net/f/19305510-costco-members-anker-solix-c300x-288wh-dc-power-station-100w-charger-100-free-s-h
https://www.costco.com/p/-/anker-...4000391740
2) If you are going to compare batteries, specifically regarding capacity, you need to do it in Wh not mAh. So this is 288Wh vs 99Wh. But again, completely different use case for most people.
1) As someone already told you, you are making an apples to oranges comparison here. This is a completely different product for a different purpose and the main goal is portability. If we're going to compare prices based on battery capacity, why bother with either of these when you can get some 2000Wh battery for only $800? That's a 20x increase in capacity for only 5x in price. Oh, because you're not going to throw a 40lb brick in your backpack or on a plane.
2) If you are going to compare batteries, specifically regarding capacity, you need to do it in Wh not mAh. So this is 288Wh vs 99Wh. But again, completely different use case for most people.
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