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Exclusive Technologies 
Trickle-Charging Mode
Double-click to activate low-current charging for devices such as earphones and Bluetooth speakers; single-click to exit and resume normal charging.
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Customer Reviews
4.6 out of 5 stars 8,180
4.6 out of 5 stars 19,820
4.6 out of 5 stars 6,520
4.6 out of 5 stars 924
4.4 out of 5 stars 16,020
4.5 out of 5 stars 7,110
4.6 out of 5 stars 41,001
Price
$23.99$23.99
$33.99$33.99
$119.99$119.99
—
$89.99$89.99
$25.99$25.99
$64.99$64.99
Series
Basic
Basic
Premium
Basic
Premium
Basic
Basic
Main Feature
PIQ&QC
Built-In C Cable
Built-In C Cable*2
Portable
PD 3.1, Max 140W
Slim
Dual Input Port
Output Ports
USB-A *1 + USB-C*1
Built-in C Cable + 1C
Built-in C Cable*2 + 1C1A
2*USB-A, 1*USB-C
2 USB-C, 1 USB-A
1*USB-A+1*USB-C
2 USB-A, 1 Micro USB
Recharging Time
~ 7.5 Hours (15W)
~5.25Hours(20W)
~2 Hours(100W)
~8.8 Hours(15w)
~ 1.4 Hours (65W)
~5Hours
~6.5Hours (Dual Input)
Size
8.07 x 5.51 x 1.38 in
4.72*2.90*1.24 in
6.18 * 1.93 * 2.12 in
6.22 x 2.93 x 0.76 in
6.13 x 2.15 x 1.95 in
6.01x 2.82 x 0.61in
3.21 x 7.09 x 0.87 in
Weight
1.01lb
0.78lb
1.31lb
0.77lb
1.39lb
0.53lb
1.1lb
Model Number: A1286
Anker 325 Power Bank (PowerCore 20K II)
The Slim and Powerful 20,000mAh Power Bank
Exceptional Power On the Go: Keep your devices charged for days with 20,000mAh of power. Charge an iPhone 14 up to 4.3 times, or an iPad Pro 12.9″ over 1 time—ideal for when you’re on the move.
15W Full-Speed Charging: With 15W fast charging, you can enjoy the convenience of having your devices fully charged in no time, so you can get back to work or play.
Charge 2 Devices At Once: Comes equipped with 1 USB-C and 1 USB-A port, allowing you to charge two devices simultaneously.
Flight-Ready Convenience: Anker 325 Power Bank is your TSA-approved travel companion, fitting perfectly in your carry-on luggage for hassle-free charging during flights.
What You Get: Anker 325 Power Bank (PowerCore 20K II),1.9 ft (60 cm) USB-A to USB-C cable, welcome guide, our worry-free 18-month warranty, and friendly customer service.
13 reviews for Anker Portable Charger, 20,000mAh Power Bank, Battery Pack with 1 USB-A and 1 USB-C Ports, 15W Max Charging for iPhone 16/15/14/13/12 Series, Samsung Galaxy, and More (Black)
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$23.99

Mozzie –
Reliable Power Bank For Travel And Everyday Use
I picked up this Anker 20,000 mAh portable charger to keep my phone and other devices topped up on long days and trips, and it has been very dependable. The capacity is enough to charge my phone multiple times, so I do not have to worry about hunting for outlets at airports, on road trips, or during long days out. Having both a USB A and a USB C port makes it easy to charge two devices at once, like my phone and earbuds, without carrying extra bricks.Charging speed has been solid for a 15 W power bank. It is not a super fast charger, but it is more than good enough for steady top ups and full charges while I am on the move. The build feels sturdy and the finish holds up well riding in a bag with other gear. It is a bit on the heavier side, which is normal for a 20,000 mAh pack, but the trade off in capacity is worth it to me. If you want a reliable, no nonsense power bank from a brand you can trust, this is a very good choice.
Ashwin Menon –
Powerful battery backup as long as you are okay with the bulk
Good power bank, somewhat heavy, but it works well. Can easily last multiple days and very useful when traveling. It is a little bulky, however.
Anna –
Good power bank
This is a great little power bank that can charge my phone four times over before needing to be charged again. I also appreciate the USB-C port, which is convenient for charging. This is on the heavier side but it’s decent trade-off considering how much charge it holds.
Jennifer –
Great charger
This charger is great. It holds the charge to itself for a very long time. And I use it for about 3 to 4 days before I have to charge it again and I charge my cell phone with it throughout the day which I have to charge because I’m on it a lot for work and it doesn’t go out fast and it charges my phone quickly and I love that it’s mobile so I can move around with me. The only week it does take a long time to charge, but it’s worth it whenever it is charged.
kbinmd –
Great but not perfect
I bought this for travel that would take me through several airports. I wanted to avoid charging at the gate and have enough juice to last even on the planes. Charging takes quite some time, but once it’s charged, it was more than adequate for the task at hand. It charged both my phone and headphones multiple times without needing to be charged itself.My gripes are minor and didn’t affect my trip but they’re there nonetheless. It’s rather large and heavy. Also there is no wireless option. Again that wasn’t critical for me but I’d like to see wireless charging in a future version.When not traveling, it actually works perfect for weekend trips to the beach. I can charge my Kindle or phone while lounging in the sand and waves. For the record I use it with my iPhone 15 pro, Kindle paperwhite, Airpods Pro, and Soundcore Liberty 3 Pro.
Leslye –
Reliable & Fast Charging – A Must-Have!
I’ve been using this Anker Portable Charger for about four years, and it has never let me down! Whether I’m traveling or at home, this power bank charges my devices super fast, even my tablet. The 20,000mAh capacity means I can get multiple charges before needing to recharge it, which is a lifesaver on long trips.Recently, I bought one for my godfather in Cuba, where power outages are common. It works perfectly for keeping his phone and mini fan charged when the electricity goes out. The dual ports are a great feature, allowing him to charge two devices at once. This is hands down one of the best portable chargers I’ve ever owned—durable, reliable, and powerful. If you need a high-quality battery pack, I highly recommend this one!
Jonny –
Great product, great company
I just love Anker power banks. I have been using this brand long before it became popular. I have at least 15 Anker power banks of various sizes and designs. In fact I still have the very first one I purchased at least 17 years ago. Don’t use it for much but still works great and holds a charge. I only buy Anker power banks and cables. I traveled on an airplane 4 times a week for three years, these are life savers…
Ryan M. –
Excellent power bank
I love Anker products, they’ve been on top of their game for a long while now. This is a great power bank. It is slow to charge, but this is obviously due to it’s high capacity, so just be aware of that. Only complaint is that the capacity is not 20,000 mah as stated. I’m getting just about 17,000 mah on my meter, several attempt to drain the battery completely and recharge have all yielded the same result. You’ll lose roughly 20% during transfer of energy, so this leaves you with about 13,600 mah. Just another thing to be aware of, doesn’t take away from how good it is.
Dariusz Kolodynski –
Potrzebowałem pojemnego akumulatora aby zasilać mały streamer. Wybrałem białą wersję aby odejść od wszechobecnej czerni urządzeń elektro. Dwa porty (USB A i C), dyskretny wskaźnik naładowania, estetyczna obudowa i duża pojemność. Spodobał mi się tak bardzo, że natychmiast zamówiłem drugie urządzenie. Po kilku tygodniach użytkowania jestem mega zadowolony.
Client d’Amazon –
J’en avais déjà une (l’ancienne version) qui a très bien fait son job pendant presque 10 ans !!! Cette version est top (attention, elle reste lourde à transporter et ne rentre pas dans les poches d’un pantalon) mais elle semble inépuisable !!
Eugen –
Leistungsstarker Begleiter für unterwegs!Die Anker Powerbank 325 (PowerCore 20K II) mit 20.000mAh Kapazität hat sich als unverzichtbarer Begleiter für alle erwiesen, die unterwegs auf eine zuverlässige Stromquelle angewiesen sind. Ich nutze sie nun seit einigen Wochen, und hier ist meine detaillierte Bewertung:Design und VerarbeitungDie Powerbank besticht durch ihr minimalistisches Design und eine robuste Verarbeitung. Sie fühlt sich hochwertig an und ist dennoch kompakt genug, um problemlos in eine Tasche zu passen. Das matte Finish verhindert Fingerabdrücke und sorgt für einen sicheren Griff.Leistung und KapazitätMit 20.000mAh bietet diese Powerbank beeindruckende Leistung. Sie schafft es, mein Smartphone iPhone bis zu fünfmal vollständig aufzuladen, bevor sie selbst wieder aufgeladen werden muss. Auch größere Geräte wie Tablets lassen sich problemlos mehrmals aufladen. Die Kapazität reicht locker für mehrere Tage ohne Steckdose, was besonders auf Reisen oder bei Outdoor-Aktivitäten praktisch ist.LadeoptionenDie Powerbank verfügt über einen USB-C-Eingang sowie zwei USB-A-Ausgänge, sodass mehrere Geräte gleichzeitig geladen werden können. Besonders gut gefällt mir, dass die USB-C-Schnittstelle auch als Eingang fungiert und eine schnellere Aufladung der Powerbank ermöglicht. Allerdings wäre es wünschenswert, wenn der USB-C-Port ebenfalls als Ausgang für das Laden von Geräten dienen könnte.Schnelles LadenDank der PowerIQ- und VoltageBoost-Technologien von Anker lädt die Powerbank alle angeschlossenen Geräte sehr schnell auf. Die Ladezeit ist spürbar kürzer im Vergleich zu Standard-Powerbanks. Besonders praktisch ist der integrierte Trickle-Charge-Modus für kleinere Geräte wie Kopfhörer oder Smartwatches, die sonst oft langsamer oder ineffizient geladen werden.SicherheitEin weiteres Highlight ist die MultiProtect Sicherheitsfunktion von Anker, die für zusätzlichen Schutz sorgt. Ich habe volles Vertrauen in das Gerät, da es Schutz vor Überladung, Überhitzung und Kurzschlüssen bietet.FazitDie Anker Powerbank 325 (PowerCore 20K II) bietet alles, was man von einer hochwertigen Powerbank erwartet: enorme Kapazität, schnelles Laden und einen robusten Aufbau. Sie ist ideal für Vielreisende, Pendler oder alle, die oft fernab von Steckdosen unterwegs sind. Einzig der USB-C-Port könnte als Ausgang für noch mehr Flexibilität sorgen, aber das ist kein entscheidender Nachteil.Vorteile:• Enorme Kapazität von 20.000mAh• Schnellladefunktion mit PowerIQ und VoltageBoost• Robustes und kompaktes Design• Zwei USB-A-Ausgänge für das gleichzeitige Laden mehrerer Geräte• Trickle-Charge-Modus für kleine Geräte• MultiProtect SicherheitssystemNachteile:• USB-C-Port dient nur als Eingang, nicht als AusgangInsgesamt bin ich sehr zufrieden und würde die Powerbank jedem empfehlen, der eine zuverlässige, langlebige Lösung für unterwegs sucht.Deswegen 5 Sterne:)
fanat1c –
My old 20k powerbank from Anker which I have had for about 5 years got swollen. I think I had dropped in in the ground or something so a cell got injuried.But I’m really happy with Anker products in general so I ordered a new one. This one seems a little bit bigger in size.
Ponnamperuma –
Actually, I didn’t rush to write my experience until I had used this product for 4–5 days. My first experience was with charging the power bank—it took a long time. I thought it was a bad product and that I had wasted my money. But that wasn’t the case. After it was fully charged, I was able to use it three times to charge my Samsung A15 phone. I can recommend this product as a good quality power bank.