Solar Power Bank 8,000mAh

Marketing says 20,000mAh. Actual capacity: 8,000mAh. Waterproof. Solar is trickle-charge, not primary. Charges your phone once, or your radio 5–10 times.

When it matters

• Extended evacuation with critical comms: hand-crank radio sips power; power bank provides 5–10 charge cycles before needing manual crank or solar setup.
• Stranded in transit: phone critical for location/EMS coordination. Power bank gives one full charge (maybe two). Beyond that, ration to emergency calls only.
• Shelter-in-place with shared devices: kids need light, radio needs power, someone has a medical device. Power bank distributes charge across group for 2–3 days.

What it does

• Radio charging (hand-crank radio charges 5–10 times per full power bank)
• Small device charging (lights, wearables)
• Non-obvious: compass built-in (useful if phone GPS is drained and you're navigating)

Built to last

Actual capacity is 8,000mAh (not 20,000). Solar panel is maintenance trickle-charge only—don't expect significant charging from sun alone. Waterproof but not submersion-proof beyond brief dunks. Lithium-ion cells lose capacity with age, so top it up every few months.

Where it fits your kit

Get-Home Bag layer. Sentinel Hand-Crank Solar Radio: power bank extends radio listening time. Radio hand-cranks for emergency listening; bank stores charge for less-urgent updates. Tactical Zoom Flashlight: flashlight battery separate; power bank is backup for extended darkness (lantern for ambient, flashlight + bank for work).

Specs

• Actual capacity: 8,000mAh (CJ: 'actual 8000 mA, standard 20000 mA')
• Materials: Plastic shell, lithium-ion cell
• Dimensions: 138.5mm x 75mm x 20mm
• Output: Dual USB ports (standard 1A, limited simultaneous output)
• Compass: Included (dial, not electronic)
• In the box: 1x power bank + USB cable

Field notes

• Charge this first if you have grid power—don't rely on solar alone. Solar maintains 5–10% top-up over a day, not primary charging.
• With dual USB ports, only one charges efficiently if both are used. Use one at a time for best flow.
• Keep it out of hot cars and direct sun; heat ages lithium batteries. Keep in shade during evacuation; extreme temps reduce capacity.

FAQ

Q: Why does it say 20,000mAh but only 8,000 real? Marketing practice. The 20,000 is 'standard' (theoretical) vs. 'actual' (real-world removable capacity). Actual is what you can use.

Q: Can it charge my phone fully? Depends on phone size. Expect roughly one full charge of a large modern phone. Older/smaller phones: ~2 charges. Don't expect more.

Q: Is the solar charging useful? It's maintenance charging—keeps the bank from dying if unused for weeks. It won't charge the bank from empty. Use hand-crank devices or grid power for primary charging.

Covered by the optional Watchtower Guarantee.

Orders are placed with our fulfilment partner within 1–3 business days and ship tracked from overseas warehouses. Transit to the US is typically 5–11 days. Standard shipping is $7.95, free at $149 in qualifying items. We accept physical-item returns. You pay return postage. Refunds are issued within 45 days of receiving your return. Monthly subscriptions and digital products are non-refundable. Full shipping & returns terms.