Illustration, not a photograph. Official product imagery pending.
Anker 325 Power Bank 20000mAh External Battery Pack
In stock
USB power bank. Rated capacity: 20000 mAh at the cell voltage of 3.
Direct answer: is the Anker 325 Power Bank 20000mAh External Battery Pack right for you?
20000 mAh is measured at the cell's 3.7 V; your phone charges at 5 V, and the conversion loses 30 to 35 percent, so what actually reaches the phone is closer to 13000 mAh -- about three and a half charges rather than five.
Anker 325 Power Bank 20000mAh External Battery Pack
Editorial verdict
Grounded in published specifications
Summary verdict: 20000 mAh is measured at the cell's 3.7 V; your phone charges at 5 V, and the conversion loses 30 to 35 percent, so what actually reaches the phone is closer to 13000 mAh -- about three and a half charges rather than five. Every power bank works this way and almost none says so. The number that does matter for travel is 74 Wh, which is under the 100 Wh airline cabin limit.
Who should buy this
Travellers wanting several days of phone charging in something airline-legal.
Who should avoid this
Anyone charging a laptop or wanting fast recharge -- 15 W in and out is slow at this capacity.
Key strengths
- 74 Wh, comfortably under the 100 Wh aircraft cabin limit
- Three ports, so a phone, watch and earbuds charge at once
- About 3.5 full phone charges in real use
Limitations
- 15 W maximum output -- no fast charging for a modern phone
- Roughly 10 hours to recharge itself
- No passthrough charging, and 435 g in a bag
Technical specifications
- Type
- USB power bank
- Brand
- Anker
- Input
- USB-C, 15 W -- so it takes roughly 10 hours to recharge itself
- Output
- 15 W maximum across two USB-A and one USB-C
- Weight
- 435 g
- Aircraft
- 74 Wh is under the 100 Wh cabin baggage limit, so it may be carried on board
- Warranty
- 1 Year Official Brand Warranty
- Model SKU
- A1286
- Passthrough
- No -- it will not charge a device while itself charging
- Phone charges
- About 3.5 full charges of a 4000 mAh phone, not the 5 the rated figure implies
- Rated capacity
- 20000 mAh at the cell voltage of 3.7 V, which is 74 Wh
- Actual deliverable
- Roughly 13000 mAh at 5 V after conversion losses of 30 to 35 percent. This is normal and almost never stated
Product overview
20000 mAh is measured at the cell's 3.7 V; your phone charges at 5 V, and the conversion loses 30 to 35 percent, so what actually reaches the phone is closer to 13000 mAh -- about three and a half charges rather than five. Every power bank works this way and almost none says so. The number that does matter for travel is 74 Wh, which is under the 100 Wh airline cabin limit.
Key capabilities
- Rated capacity: 20000 mAh at the cell voltage of 3
- Actual deliverable: Roughly 13000 mAh at 5 V after conversion losses of 30 to 35 percent
- Phone charges: About 3
- Output: 15 W maximum across two USB-A and one USB-C
Frequently asked questions
Is the Anker 325 Power Bank 20000mAh External Battery Pack worth buying?
20000 mAh is measured at the cell's 3.7 V; your phone charges at 5 V, and the conversion loses 30 to 35 percent, so what actually reaches the phone is closer to 13000 mAh -- about three and a half charges rather than five.
What is the warranty and return policy for the Anker 325 Power Bank 20000mAh External Battery Pack?
1 Year Official Brand Warranty. Returns: 7 Days Replacement Guarantee.
Who is the Anker 325 Power Bank 20000mAh External Battery Pack best suited for?
Travellers wanting several days of phone charging in something airline-legal.
Who should avoid the Anker 325 Power Bank 20000mAh External Battery Pack?
Anyone charging a laptop or wanting fast recharge -- 15 W in and out is slow at this capacity.
Sample reviews
3 reviewsThese are illustrative, not customer reviews.
DealSurge has not sold this product, so nobody has reviewed it. Each entry below is written from the strengths and drawbacks recorded on this page, to show how reviews would appear — none of it is a real buyer’s experience, and none of it is counted in search results or given to the shopping assistant.
Mean of 3 samples
- 5 ★1
- 4 ★1
- 3 ★0
- 2 ★1
- 1 ★0
- 2 out of 5 stars, in a sample review of Anker 325 Power Bank 20000mAh External Battery Pack
Wrong product for my situation
Genuinely my own fault. Posting so somebody else does not repeat it. The listing says who should avoid this: Anyone charging a laptop or wanting fast recharge — 15 W in and out is slow at this capacity. That was my situation and I ordered anyway. It does what it says on the page — it just was not the thing I needed.
Snehal P.Sample30 found this helpful - 5 out of 5 stars, in a sample review of Anker 325 Power Bank 20000mAh External Battery Pack
Read the fit note, and it was me
The page describes who this is for, and it described me: Travellers wanting several days of phone charging in something airline-legal. On that basis it has been the right call. 74 Wh, comfortably under the 100 Wh aircraft cabin limit.
Vinod S.Sample1 found this helpful - 4 out of 5 stars, in a sample review of Anker 325 Power Bank 20000mAh External Battery Pack
Happy with it, but go in informed
74 Wh, comfortably under the 100 Wh aircraft cabin limit. The one thing to know before ordering: 15 W maximum output — no fast charging for a modern phone. To be fair that is written on the product page. I skimmed past it and had to rearrange things afterwards.
Dhruv T.Sample3 found this helpful
The research behind this page
Independent guides that work through the numbers on this kind of product.