We’ve all been there, on a long train ride, in the middle of a trek or stuck at the airport, watching our phone battery dip below 10%, silently praying it lasts long enough to book a cab or snap one more picture. And then it dies. The one travel essential you didn’t pack? A reliable power bank.
Whether you're going off-grid or just spending long hours away from a power outlet, carrying a backup power source makes all the difference. So, let’s dive into the best portable chargers–10,000mAh and 20,000mAh–the sweet spot for most travellers.
Why 10,000mAh & 20,000mAh Hit the Sweet Spot
Before we get into the list, let’s decode the numbers.
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A 10,000mAh portable charger is ideal for a weekend trip or daily use. It can juice up most smartphones 1.5 to 2 times and slips easily into your pocket or backpack.
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A portable charger 20,000mAh is built for longer journeys or multiple devices. It can charge a phone 3-4 times, and even handle tablets, wireless earbuds, or smartwatches all in one go.
Now that you know what to look for, let’s check out some solid, budget-friendly options that won’t leave you powerless on your next adventure.
Best 10,000mAh Portable Chargers Under Budget
1. boAt EnergyShroom PB300 Pro
Minimal design meets maximum utility with the EnergyShroom PB300 Pro. This 10,000mAh compact power bank packs more than just juice. It features 2-way fast charging, USB-A and Type-C outputs, and 12-layer Smart IC protection to guard against short circuits, overcharging, and more. Ideal for day trips and digital minimalists.
Highlights:
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2-way fast charging (input & output)
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12-layer smart IC protection system
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Smart power management

2. boAt EnergyShroom PB331 MagnaCharge
This is where things get interesting. The EnergyShroom PB331 MagnaCharge isn’t just a power bank; it’s a wireless charging station. Yes, you read that right. Apart from its 10,000mAh capacity, it also supports wireless charging, compatible with multiple smartphone brands. Less cable mess, more magic. It’s ideal for modern travellers who carry multiple devices and hate fumbling with tangled wires.
Key features:
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15W wireless charging
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Dual-wired output ports
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Free Magnacharge ring

Best 20,000mAh Portable Chargers Under Budget
3. boAt EnergyShroom PB400
When you’re going the distance, the EnergyShroom PB400 brings the power. This portable charger 20000mAh beast, can handle your smartphone, tablet, wireless earbuds, and then some. It also supports fast charging, so you’re not stuck waiting around while your devices refuel. Whether you’re heading out for a week-long trip or just hate running out of battery, this one’s your go-to.
Why it stands out:
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Ultra-slim and lightweight
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Supports 3 devices simultaneously
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12-layer smart IC protection

4. boAt EnergyShroom PB435 Turbo
Power-hungry gadgets? The EnergyShroom PB435 Turbo is the heavy-duty charger you need. This portable charger 20000mAh unit is built for serious performance. With support for two-way 35W fast charging, it can charge multiple devices simultaneously. This is not your average charger. It’s a power-packed solution for creators, professionals, or anyone who’s always on their phone.
Why it’s a game-changer:
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35W power delivery
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USB Type-C output
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Smart power management

5. boAt EnergyShroom PB401
Built for movie marathon days and long travels, the EnergyShroom PB401 packs a solid 20,000mAh punch without weighing you down. It supports 2-way fast charging, so whether you’re charging your smartwatch or TWS, this portable charger can juice them all (even at the same time). With 12-layer Smart IC protection, it’s smart, safe, and supercharged for life on the go.
Why you’ll love it:
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Charges smartwatch, TWS & phone
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2-way fast charging
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12-layer Smart IC Protection

Quick Tips Before You Buy
1. Weight vs. capacity
Bigger power banks = more power, but also more bulk. Decide based on your bag space and travel style.
2. Ports matter
If you travel with a smartwatch, phone, and TWS earbuds, go for 2+ output ports.
3. Fast charging support
Look for Quick Charge or Power Delivery if you’re always in a hurry.
Final Charge
Whether you’re a frequent flyer, an off-grid adventurer or just someone who hates being tethered to a wall socket, a good power bank is the one tech accessory you shouldn’t skip. Our EnergyShroom series delivers great performance without breaking the bank, and with sizes and features to match every kind of traveller.
So next time you pack your bags, remember: sunscreen, passport, and one of these portable chargers. Your phone (and your sanity) will thank you!