{"product_id":"ultralite-qrp-battery-18wh-usb-c-pd-5v-9v-12v-made-in-usa","title":"UltraLite QRP Battery | 18Wh | USB-C PD | 5V 9V 12V | Made in USA","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eUltraLite QRP Battery — Lightweight USB-C PD Power for Portable Radios\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cp\u003e\u003cstrong\u003eLight. Quiet. All-Day Power.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe UltraLite QRP Battery is a compact, RF-quiet 18Wh power source built for portable and field operations. It delivers selectable 5V, 9V, or 12V output via a USB Power Delivery trigger cable, charges in under 2 hours at full charge speed (15W or higher), and weighs under 4.5 oz. Take it to a summit, a park, or a go-bag. It just works.\u003c\/p\u003e\n\u003cp\u003eDesigned, printed, and hand-assembled in Colorado, USA.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eCapacity: 18Wh\u003c\/li\u003e\n\u003cli\u003eCell: Genuine Samsung 50E 21700 (user-replaceable)\u003c\/li\u003e\n\u003cli\u003eOutput Voltage: 5V, 9V, or 12V (selected by trigger cable)\u003c\/li\u003e\n\u003cli\u003eMax Power Output: 22W\u003c\/li\u003e\n\u003cli\u003eCharging: USB-C, up to 20W\u003c\/li\u003e\n\u003cli\u003eCharge Time: Under 2 hours (at full charge speed)\u003c\/li\u003e\n\u003cli\u003eRF Noise: RF-quiet design. Minimal interference with sensitive radio equipment\u003c\/li\u003e\n\u003cli\u003eDisplay: Digital battery percentage readout with USB PD active indicator\u003c\/li\u003e\n\u003cli\u003eHousing: 3D-printed ASA (heat-resistant, UV-stable)\u003c\/li\u003e\n\u003cli\u003eWeight: Under 4.5 oz\u003c\/li\u003e\n\u003cli\u003eWarranty: 1 year\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBattery Display Calibration:\u003c\/strong\u003e The power management board includes a dedicated coulomb counter for the battery percentage display. Out of the box, the display may not be accurate. The coulomb counter requires approximately 12 full charge-and-discharge cycles to properly calibrate. Until then, the percentage shown is an estimate and my power down while reading a high state of charge. This is normal behavior and will improve with use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow Voltage Selection Works:\u003c\/strong\u003e The output voltage is set by the trigger cable you pair with the battery. Each cable negotiates a fixed voltage from the battery via USB Power Delivery. The trigger cable is sold separately (see below), so buy the battery and the cable that matches your radio's input:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e5V: USB devices and low-voltage accessories\u003c\/li\u003e\n\u003cli\u003e9V: QRP radios that accept 9V input\u003c\/li\u003e\n\u003cli\u003e12V: QRP radios and accessories that accept 12V input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eTrigger Cable\u003c\/strong\u003e \u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e(sold separately)\u003c\/strong\u003e:\u003c\/span\u003e\u003c\/span\u003e The trigger cable is not included with this battery. Add the cable that matches your radio's voltage and barrel jack:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cspan\u003eStandard PD Trigger Cable.\u003c\/span\u003e Rated for 3A. DC 5.5 x 2.1mm barrel jack. 15.5 inches long.\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003ePremium 12V PD Trigger Cable (Adafruit).\u003c\/span\u003e Rated for 5A. DC 5.5 x 2.5mm barrel jack. About 4 feet long. Holds voltage better under transmit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe two cables use different barrel jack sizes (2.1mm and 2.5mm), so check your radio's jack before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/w0aez.com\/collections\/ham-gear\/products\/usb-c-trigger-cable\"\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eShop the PD trigger cable here.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/em\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eSOTA, POTA, and field day operations\u003c\/li\u003e\n\u003cli\u003eQRP HF, VHF, and UHF portable setups\u003c\/li\u003e\n\u003cli\u003eEmergency and go-bag communications\u003c\/li\u003e\n\u003cli\u003eBackpacking and lightweight hiking\u003c\/li\u003e\n\u003cli\u003eAny portable device that accepts 5V, 9V, or 12V DC input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e (1) UltraLite QRP Battery\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDesign Details:\u003c\/strong\u003e Each battery is 3D-printed and hand-assembled. Minor texture variations are cosmetic and do not affect performance. The battery features a digital display showing remaining capacity as a percentage, with a green lightning bolt icon indicating active USB PD output or input.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCharging Notes: \u003c\/strong\u003eRecharge from any USB-C power source: wall adapters, car chargers, or solar panels with USB output. Not all USB-C cables are created equal. If charging doesn't start, try a different cable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Charger: \u003c\/strong\u003eAny USB-C charger rated 15W or higher will charge the battery at full speed. Lower-wattage chargers will still work, they'll just charge slower. PPS (Programmable Power Supply) chargers will automatically negotiate the optimal charge rate but are not required. A USB-A to USB-C cable with a standard USB-A wall adapter also works and is the most universally reliable option.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUser-Serviceable Cell: \u003c\/strong\u003eThe UltraLite uses a single Samsung 50E 21700 cell. When it eventually degrades, you can replace it yourself. No need to buy a whole new battery.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLead Time \u0026amp; Shipping:\u003c\/strong\u003e Batteries are made to order in small batches. Current lead time is posted at the top of the site. Please check there for the most up-to-date estimate. Shipping options and costs are calculated at checkout.\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eUSA: USPS, UPS, and FedEx\u003c\/li\u003e\n\u003cli\u003eInternational: UPS and DHL. Customer is responsible for any import duties, taxes, or brokerage fees.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFAQ:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e The battery percentage display doesn't seem accurate.\u003cbr\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003eA: \u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eThis is expected for new units. The onboard coulomb counter needs about 12 full charge\/discharge cycles to calibrate. Accuracy improves with each cycle.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: \u003c\/strong\u003eWhat voltage do I need? \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Check your radio's DC input specs. Many QRP rigs take 12V, while others take 9V. Choose the trigger cable that matches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Can I charge this with a solar panel? \u003cbr\u003e\u003cstrong\u003eA: \u003c\/strong\u003eYes. Any USB-C power source that supports at least 5W can charge the battery, including compatible solar panels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e The barrel jack on the Premium cable doesn't fit my radio. \u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The Standard cable uses a DC 5.5 x 2.1mm barrel jack. The Premium cable uses DC 5.5 x 2.5mm. A 2.5mm plug will not fit a 2.1mm jack at all. Check your radio's barrel jack size before ordering, and note a 2.1mm plug will only fit loosely in a 2.5mm jack and may not make reliable contact.\u003c\/p\u003e\n\u003cp\u003eQ: Can I replace the cell myself? A: Yes. The UltraLite is user-serviceable. It uses a single Samsung 50E 21700 cell.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"W0AEZ Radio Gear LLC","offers":[{"title":"Default Title","offer_id":44314412482694,"sku":"Ultralite-18","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0622\/8724\/9542\/files\/DSC9107_10_Edited_d3c8f690-f8fa-44a2-99a1-3d603c93f701.jpg?v=1787871048","url":"https:\/\/temporarilyoffline.com\/products\/ultralite-qrp-battery-18wh-usb-c-pd-5v-9v-12v-made-in-usa","provider":"Temporarily Offline","version":"1.0","type":"link"}