{"product_id":"solar-power-bank-20k","title":"Solar Power Bank 8,000mAh","description":"\u003ch3\u003eMarketing says 20,000mAh. Actual capacity: 8,000mAh. Waterproof. Solar is trickle-charge, not primary. Charges your phone once, or your radio 5–10 times.\u003c\/h3\u003e\n\n\u003ch3\u003eWhen it matters\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eExtended evacuation with critical comms: hand-crank radio sips power; power bank provides 5–10 charge cycles before needing manual crank or solar setup.\u003c\/li\u003e\n\u003cli\u003eStranded in transit: phone critical for location\/EMS coordination. Power bank gives one full charge (maybe two). Beyond that, ration to emergency calls only.\u003c\/li\u003e\n\u003cli\u003eShelter-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.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat it does\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eRadio charging (hand-crank radio charges 5–10 times per full power bank)\u003c\/li\u003e\n\u003cli\u003eSmall device charging (lights, wearables)\u003c\/li\u003e\n\u003cli\u003eNon-obvious: compass built-in (useful if phone GPS is drained and you're navigating)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBuilt to last\u003c\/h3\u003e\n\u003cp\u003eActual 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.\u003c\/p\u003e\n\n\u003ch3\u003eWhere it fits your kit\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eGet-Home Bag layer.\u003c\/strong\u003e 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).\u003c\/p\u003e\n\n\u003ch3\u003eSpecs\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual capacity:\u003c\/strong\u003e 8,000mAh (CJ: 'actual 8000 mA, standard 20000 mA')\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterials:\u003c\/strong\u003e Plastic shell, lithium-ion cell\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 138.5mm x 75mm x 20mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput:\u003c\/strong\u003e Dual USB ports (standard 1A, limited simultaneous output)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompass:\u003c\/strong\u003e Included (dial, not electronic)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIn the box:\u003c\/strong\u003e 1x power bank + USB cable\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eField notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCharge 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.\u003c\/li\u003e\n\u003cli\u003eWith dual USB ports, only one charges efficiently if both are used. Use one at a time for best flow.\u003c\/li\u003e\n\u003cli\u003eKeep it out of hot cars and direct sun; heat ages lithium batteries. Keep in shade during evacuation; extreme temps reduce capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Why does it say 20,000mAh but only 8,000 real?\u003c\/strong\u003e Marketing practice. The 20,000 is 'standard' (theoretical) vs. 'actual' (real-world removable capacity). Actual is what you can use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can it charge my phone fully?\u003c\/strong\u003e Depends on phone size. Expect roughly one full charge of a large modern phone. Older\/smaller phones: ~2 charges. Don't expect more.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Is the solar charging useful?\u003c\/strong\u003e 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.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eCovered by the optional \u003ca href=\"\/pages\/guarantee\"\u003eWatchtower Guarantee\u003c\/a\u003e.\u003c\/em\u003e\u003c\/p\u003e\n","brand":"Stand Fast Supply Co.","offers":[{"title":"Default Title","offer_id":51726190444773,"sku":"CJCD128906201AZ","price":43.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/2967\/8565\/files\/solar-power-bank-20k.jpg?v=1789187471","url":"https:\/\/watchtowersupply.com\/products\/solar-power-bank-20k","provider":"Watchtower Supply Co.","version":"1.0","type":"link"}