$59.90
Free delivery · 7–14 days
Magnetic Power Bank with Fast Charging & OLED DisplayWaterproof Solar Power Bank 20000mAh with Compass
+2
About this itemAll characteristics
TypePower Banks & Chargers
Battery capacity20000mAh lithium‑polymer
USB output ports2 x USB‑A
Solar panelBuilt‑in front panel, emergency top‑up
CompassMagnetic, no battery
WaterproofYes (keep port cover sealed)
From the seller
Your phone stays charged through a whole weekend off‑grid, so GPS, photos, and emergency calls never disappear.
Read the full descriptionDescription
Your phone stays charged through a whole weekend off‑grid, so GPS, photos, and emergency calls never disappear.
Waterproof solar power bank with 20000mAh capacity—charge anywhere, anytime
Solves
- dead phone battery during outdoor activities
- no power access while camping/hiking
- need for emergency backup power
- fragile electronics in wet conditions
Never Watch Your Phone Die Miles From a Single Outlet
From a dead battery at the summit to two full charges in your pack — power that follows you anywhere the trail goes.
Engineered for the Worst Conditions
20000mAh of Real Backup
Enough charge for multiple phone refills across a three‑day trip. No rationing, no turning your phone off to squeeze out one last call. This is high‑density lithium that actually delivers the number printed on the case.
Charges Straight From the Sun
The front panel slowly replenishes the reserve while you hike. It’s not a main charger — it’s an emergency backstop for moments when there’s no outlet for days. Leave it face‑up in the sun and it quietly builds your safety net.
Waterproof and Drop-Tough
Matte casing with deep grip panels shrugs off rain, sand, and the inevitable drop on rock. Keep the port cover sealed and it’ll go through stream crossings and sudden downpours without a flicker.
Compass That’s Always There
No batteries, no calibration — just a magnetic needle set into the shell. When your phone is dead and you lose the trail, this gives you a basic bearing to the nearest ridgeline. It costs nothing to include and might save your night.
By the Numbers
- 20000mAhbattery capacity
- 2USB output ports
- 1built‑in compass
- 4color options
Everything You Get
- Waterproof solar power bank×1
20000mAh, color variant of your choice
- Micro‑USB charging cable×1
30 cm, reinforced connectors
From Battery Anxiety to Worry-Free Adventures
The 3% Moment
You know the feeling. Miles left to go, no signal, and the battery icon flashes red. GPS is gone. Your camera is gone. In an emergency, you’re one beep from a walkie-talkie. That moment replays in your mind every time you zip up the pack.
Power That Follows You
A single brick that gives your phone multiple lives and pulls extra juice straight from the sun. Throw it in your pack, clip it on the outside, and forget about rationing. Two USB ports mean a friend charges too, and the compass is always there if the phone really does die.
Pack It and Forget It
Now every trip starts with a full phone and zero anxiety. You snap your photos, follow your GPS, and know a backup exists even when there’s nothing but trees and sky. Power stops being the thing you worry about so you can focus on the reason you’re out there.
Simple Care, Long Life
- Keep the rubber port cover sealed
It’s the only weak point for water. Push it firmly closed before any stream crossing or downpour.
- Wipe the solar panel clean
Dirt and grit block the sun. A soft cloth before a long day on the trail helps it top up faster.
- Store at half charge
If you won’t use it for a few months, leave it around 50‑60%. A full‑empty cell degrades faster.
- Avoid leaving it in a hot car
Temperatures above 60°C stress the battery. Take it out of the glovebox when you get home.
- Rinse after saltwater or mud
Gently wash the casing with fresh water and let it dry before opening the ports.
Not Your Desk‑Drawer Power Bank
| This Solar Bank | Standard Power Bank | |
|---|---|---|
| Waterproof | Yes | No |
| Solar top‑up | Yes | No |
| Built‑in compass | Yes | No |
| Drop‑tough build | Yes | Partial |
| Capacity 20000mAh | Yes | Varies |
Characteristics
Main
CategoryPower Banks & Chargers
color8 options
Details
Battery capacity20000mAh lithium‑polymer
USB output ports2 x USB‑A
Solar panelBuilt‑in front panel, emergency top‑up
CompassMagnetic, no battery
WaterproofYes (keep port cover sealed)
MaterialMatte ABS + rubberized grip panels
Charging inputMicro‑USB + solar
LED indicatorsFour‑bar charge gauge
Reviews
Questions and answers
How fast does the solar panel actually charge it?
w
Wanelo · seller
Slowly — think 5‑10% per full day of direct sun. It’s an emergency backstop, not a main charger. Wall‑charge it to 100% before every trip and let the solar top you up while you walk.
Is it truly waterproof or just splash‑resistant?
w
Wanelo · seller
The casing is sealed against water, so rain, splashes and brief immersion won’t harm it — as long as the rubber port cover is firmly closed. Don’t charge devices while the bank is soaking wet.
Can it charge two devices at once?
w
Wanelo · seller
Yes, both USB‑A ports deliver power simultaneously. You can refill your phone and a friend’s, or a phone and a headlamp, at the same time.
How many phone charges does 20000mAh really give?
w
Wanelo · seller
A modern smartphone takes about 4000‑5000mAh per full charge. That’s roughly four full refills if the bank is full. Real‑world use — with screen brightness and GPS — might get you three.
Does the compass need batteries or calibration?
w
Wanelo · seller
No. It’s a simple magnetic compass embedded in the shell. It works as long as there’s no strong magnetic interference nearby.
Will it hold a charge in cold weather?
w
Wanelo · seller
Lithium cells discharge faster in freezing temperatures, so expect a small drop overnight. Keep the bank inside your sleeping bag or an inner jacket pocket and it’ll be fine for a winter weekend.
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