Anker 337 Power Bank (PowerCore 26K)
A heavy but dependable high capacity USB A bank that is slow to refill.
We bought Portable Charger 36000mAh Power Bank with Dual External Backup Batteries, 2 USB Ports. It's no longer documented anywhere, so this page reviews the closest well-covered match. It is a similar large capacity USB A power bank at a similar price from a major brand with a readable maker page and independent reviews.
The short version
- Travelers who want days of phone charging from one bank
- Families charging several USB devices at once
- Anyone who needs a high capacity bank that is allowed in carry on luggage
- Your devices need USB C Power Delivery or laptop level power
- You want something light enough for a pocket
- You need a fast recharge overnight from a single cable
What owners like
- Enough capacity for several phone charges or a couple of tablet charges
- Feels solid and holds up across many trips
- Can run three devices at once and still have charge left over
Common complaints
- Heavy and bulky next to smaller banks
- Slow to refill, especially from a single Micro USB input
- No USB C port and no fast charging protocols for modern phones
Based on Anker's product page, the Amazon listing, a long term travel review on No Camera Bag and a hands on review on an Anker fan blog..
Research scores
Scored from the maker's specs and what owners report. Drew's own notes and photos will refine these.
Ownership
Drew's hands-on notes for this product are on the way. Long-term updates will be added to this timeline.
What it does
A large 26,800mAh USB power bank with three USB A outputs and two Micro USB inputs, reviewed here as the closest well documented match to the generic 36000mAh two port bank that was bought.
- Charges three USB devices at the same time
- PowerIQ and VoltageBoost to match charging speed to each device
- Dual Micro USB inputs to cut recharge time roughly in half
- Four LED lights show the remaining charge
- Under the 100Wh airline carry on limit, per Anker
A good fit for travelers and anyone who wants several full phone charges in one bank that still flies as carry on. The trade-offs are weight, no USB C port, and a slow Micro USB recharge of about six hours even with both inputs in use.
How it compares
Specs
- Capacity
- 26,800mAh (96.48Wh)
- Outputs
- 3 USB A ports, 5V 6A total, up to 3A per port
- Inputs
- 2 Micro USB ports, 5V 4A total, up to 2A per port
- Recharge time
- About 6 hours using both inputs with 2A chargers; much slower on one
- Size
- 180 x 81.5 x 22 mm (7 x 3.1 x 0.9 in)
- Weight
- 495 g (17.5 oz)
- In the box
- Two Micro USB cables; wall charger sold separately
- Warranty
- 18 months, per Anker
Worth knowing
- Anker states it is not compatible with some iPod models or devices that draw less than 50mA.
- Anker advises recharging the bank every few months during long storage.
Questions
Can the Anker 337 power bank go on a plane?
Yes. Anker rates it at 96.48Wh, which is under the 100Wh carry on limit. Pack it in carry on, not checked bags.
How long does the Anker PowerCore 26K take to charge?
About 6 hours using both Micro USB inputs with 2A chargers. With one input it takes roughly twice as long.
Does it have a USB C port?
No. It has three USB A outputs and two Micro USB inputs. A USB A to USB C cable is needed for USB C phones.
How many times can it charge a phone?
Anker says most phones more than six times and tablets at least twice.
Is a wall charger included?
No. Only two Micro USB cables come in the box.
Sources
- Amazon.com: Anker Power Bank, 26,800mAh External Battery with Dual Input Port and Double Speed Recharging, 3 USB Ports
- Anker: Anker 337 Power Bank (PowerCore 26K)
- No Camera Bag: Anker PowerCore 26800 Power Bank Review for Travel
- Anker Fan: Review of Anker PowerCore 26800
Researched 2026-10-02. We bought this product; our page is built from the maker's details and what owners report across reviews and forums. We never copy Amazon customer reviews.
