{"id":2262,"date":"2026-01-29T23:36:54","date_gmt":"2026-01-29T21:36:54","guid":{"rendered":"https:\/\/nature-o.net\/?page_id=2262"},"modified":"2026-02-02T17:25:24","modified_gmt":"2026-02-02T15:25:24","slug":"power-bank-phone-charges-calculator","status":"publish","type":"page","link":"https:\/\/nature-o.net\/?page_id=2262","title":{"rendered":"Power Bank Phone Charges Calculator"},"content":{"rendered":"\n<div class=\"eco-tool wp-block-group\" id=\"eco-tool-powerbank-0b7c6\">\n  <div class=\"eco-tool__header\">\n    <h2 class=\"eco-tool__title\">Power Bank Phone Charges Calculator<\/h2>\n    <p class=\"eco-tool__lead\">Estimate how many full phone charges a power bank can provide (simple estimate).<\/p>\n  <\/div>\n\n  <form class=\"eco-tool__form\" novalidate>\n    <div class=\"eco-tool__grid2\">\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-pb-bank-0b7c6\">Power bank capacity (mAh)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-pb-bank-0b7c6\" type=\"number\" min=\"0\" step=\"500\" value=\"10000\" inputmode=\"numeric\">\n        <div class=\"eco-tool__hint\">Common: 5,000\u201320,000 mAh.<\/div>\n      <\/div>\n\n      <div class=\"eco-tool__field\">\n        <label class=\"eco-tool__label\" for=\"eco-pb-phone-0b7c6\">Phone battery (mAh)<\/label>\n        <input class=\"eco-tool__input\" id=\"eco-pb-phone-0b7c6\" type=\"number\" min=\"0\" step=\"100\" value=\"4000\" inputmode=\"numeric\">\n        <div class=\"eco-tool__hint\">Common: 3,000\u20135,000 mAh.<\/div>\n      <\/div>\n    <\/div>\n\n    <div class=\"eco-tool__actions\">\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn\" id=\"eco-pb-calc-0b7c6\">Calculate<\/button>\n      <button type=\"button\" class=\"wp-element-button eco-tool__btn eco-tool__btn--ghost\" id=\"eco-pb-reset-0b7c6\">Reset<\/button>\n      <div class=\"eco-tool__error\" id=\"eco-pb-error-0b7c6\" aria-live=\"polite\"><\/div>\n    <\/div>\n  <\/form>\n\n  <div class=\"eco-tool__result\" id=\"eco-pb-result-0b7c6\" hidden>\n    <h3 class=\"eco-tool__subtitle\">Result<\/h3>\n    <div class=\"eco-tool__card eco-tool__card--wide\">\n      <div class=\"eco-tool__metric-label\">Estimated full charges<\/div>\n      <div class=\"eco-tool__metric-value\" id=\"eco-pb-out-0b7c6\">\u2014<\/div>\n      <div class=\"eco-tool__metric-sub\" id=\"eco-pb-sub-0b7c6\">\u2014<\/div>\n    <\/div>\n    <p class=\"eco-tool__note\">Assumes ~85% real efficiency (losses in conversion and cables).<\/p>\n  <\/div>\n<\/div>\n\n<style>\n.eco-tool{border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:16px}\n.eco-tool__title{margin:0 0 8px}\n.eco-tool__lead{margin:0;opacity:.9}\n.eco-tool__grid2{display:grid;grid-template-columns:1fr;gap:16px;margin-top:12px}\n@media(min-width:860px){.eco-tool__grid2{grid-template-columns:1fr 1fr}}\n.eco-tool__field{display:flex;flex-direction:column;gap:6px}\n.eco-tool__label{font-weight:600}\n.eco-tool__input{width:100%;height:44px;padding:0 12px;border:1px solid rgba(0,0,0,.2);border-radius:10px;background:#fff;box-sizing:border-box;font:inherit}\n.eco-tool__hint{font-size:.92em;opacity:.78;min-height:34px}\n.eco-tool__actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:16px}\n.eco-tool__btn{padding:10px 22px}\n.eco-tool__btn--ghost{background:transparent!important;border:1px solid rgba(0,0,0,.2)!important}\n.eco-tool__btn--ghost:hover,.eco-tool__btn--ghost:focus{background:rgba(0,0,0,.06)!important;border-color:rgba(0,0,0,.35)!important}\n.eco-tool__error{min-height:1.2em;font-weight:600;flex:1 1 240px}\n.eco-tool__result{margin-top:16px}\n.eco-tool__subtitle{margin:0 0 10px}\n.eco-tool__card{border:1px solid rgba(0,0,0,.12);border-radius:12px;padding:12px}\n.eco-tool__metric-label{opacity:.85;font-weight:600}\n.eco-tool__metric-value{font-size:1.7em;font-weight:900;margin-top:6px;line-height:1.1}\n.eco-tool__metric-sub{opacity:.85;margin-top:6px}\n.eco-tool__note{margin:10px 0 0;opacity:.9}\n<\/style>\n\n<script>\n(function(){\n  const S=\"0b7c6\";\n  const el=(id)=>document.getElementById(id+\"-\"+S);\n\n  const bankEl=el(\"eco-pb-bank\");\n  const phoneEl=el(\"eco-pb-phone\");\n  const calcBtn=el(\"eco-pb-calc\");\n  const resetBtn=el(\"eco-pb-reset\");\n  const errEl=el(\"eco-pb-error\");\n\n  const resEl=el(\"eco-pb-result\");\n  const outEl=el(\"eco-pb-out\");\n  const subEl=el(\"eco-pb-sub\");\n\n  const EFF=0.85;\n\n  function setErr(m){ errEl.textContent=m||\"\"; }\n  function n(v){ return Number(v); }\n\n  calcBtn.addEventListener(\"click\", function(){\n    setErr(\"\");\n    const bank=n(bankEl.value);\n    const phone=n(phoneEl.value);\n    if(!Number.isFinite(bank)||bank<0){ setErr(\"Please enter power bank capacity (0 or more).\"); resEl.hidden=true; return; }\n    if(!Number.isFinite(phone)||phone<=0){ setErr(\"Please enter phone battery capacity (greater than 0).\"); resEl.hidden=true; return; }\n\n    const charges=(bank*EFF)\/phone;\n    outEl.textContent = `${(Math.round(charges*10)\/10).toLocaleString()} charges`;\n    subEl.textContent = `(${bank.toLocaleString()} mAh \u00d7 85%) \u00f7 ${phone.toLocaleString()} mAh.`;\n    resEl.hidden=false;\n  });\n\n  resetBtn.addEventListener(\"click\", function(){\n    setErr(\"\");\n    bankEl.value=\"10000\";\n    phoneEl.value=\"4000\";\n    resEl.hidden=true;\n  });\n})();\n<\/script>\n\n","protected":false},"excerpt":{"rendered":"<p>Power Bank Phone Charges Calculator Estimate how many full phone charges a power bank can provide (simple estimate). Power bank capacity (mAh) Common: 5,000\u201320,000 mAh. Phone battery (mAh) Common: 3,000\u20135,000&hellip;<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2452,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_sitemap_exclude":false,"_sitemap_priority":"","_sitemap_frequency":"","footnotes":""},"_links":{"self":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/2262"}],"collection":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nature-o.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2262"}],"version-history":[{"count":2,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/2262\/revisions"}],"predecessor-version":[{"id":2264,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/2262\/revisions\/2264"}],"up":[{"embeddable":true,"href":"https:\/\/nature-o.net\/index.php?rest_route=\/wp\/v2\/pages\/2452"}],"wp:attachment":[{"href":"https:\/\/nature-o.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}