{"product_id":"the-volt-keeper-usb-c-rechargeable-9v-battery","title":"The Volt Keeper | 1200mAh USB-C Rechargeable 9V Li-ion Battery","description":"\u003cdiv class=\"product-narrative\"\u003e\n\u003cp\u003eEvery household runs on a quiet tax paid in nine-volt cells. The smoke detector, the guitar pedal, the multimeter that only wakes up twice a year, the remote that always dies on the wrong evening. Alkaline 9V batteries are bought in packs, used once, and thrown away with most of their capacity still inside them. The Volt Keeper removes that recurring line item by putting a rechargeable lithium cell where the disposable one used to sit.\u003c\/p\u003e\n\u003cp\u003eThe cell is a 1200mAh lithium-ion pack in the standard 6F22 footprint, measuring 47.5 by 26 by 16.5 mm so it drops into existing battery compartments without adapters or shims. Charging happens through a USB Type-C port built into the cell itself: a five-volt input at 400mA, with a conversion efficiency between 88 and 92 percent, and an indicator that turns from red to green when the charge is complete. There is no separate charging cradle to lose.\u003c\/p\u003e\n\u003cp\u003eWhat matters over years rather than weeks is the cycle life. This pack is rated for up to 1200 charge cycles, with low self-discharge so a cell that sits in a drawer through winter still has capacity in spring. Lithium chemistry also holds voltage under load far better than alkaline, which is why devices that used to fade gradually tend to keep working until the cell is genuinely empty. In practice, a set of four replaces hundreds of disposables.\u003c\/p\u003e\n\u003cp style=\"font-style:italic;color:#333;border-left:3px solid #c9a227;padding-left:14px;margin:22px 0;\"\u003eA battery is not a consumable. It is a component, and components are meant to be kept.\u003c\/p\u003e\n\u003c\/div\u003e\u003chr style=\"margin:26px 0;border:0;border-top:1px solid #eee;\"\u003e\u003cdiv class=\"product-features\" style=\"margin-top:28px;\"\u003e\n\u003ch3 style=\"font-size:20px;margin-bottom:10px;\"\u003eEngineering Notes\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;margin:0;\"\u003e\n\u003cli style=\"padding:12px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eTrue 1200mAh capacity\u003c\/strong\u003e — Rated capacity matches the label, so runtime in detectors and pedals is predictable.\u003c\/li\u003e\n\u003cli style=\"padding:12px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eUSB Type-C charging on the cell\u003c\/strong\u003e — The port is built into the battery itself, with no cradle and no proprietary charger.\u003c\/li\u003e\n\u003cli style=\"padding:12px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003e88 to 92 percent conversion efficiency\u003c\/strong\u003e — Little energy is lost as heat during charging, so cells stay cooler and last longer.\u003c\/li\u003e\n\u003cli style=\"padding:12px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eUp to 1200 charge cycles\u003c\/strong\u003e — Years of use from one purchase instead of a drawer full of dead alkalines.\u003c\/li\u003e\n\u003cli style=\"padding:12px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eLow self-discharge\u003c\/strong\u003e — Storage between seasons does not leave a cell flat when you need it.\u003c\/li\u003e\n\u003cli style=\"padding:12px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eStandard 6F22 footprint\u003c\/strong\u003e — 47.5 x 26 x 16.5 mm, a direct drop-in for existing nine-volt compartments.\u003c\/li\u003e\n\u003cli style=\"padding:12px 0;border-bottom:1px solid #eee;\"\u003e\n\u003cstrong\u003eFour, six or eight cell packs\u003c\/strong\u003e — Buy the size that matches how many devices you actually maintain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-specs\" style=\"margin-top:28px;\"\u003e\n\u003ch3 style=\"font-size:20px;margin-bottom:10px;\"\u003eCell Data\u003c\/h3\u003e\n\u003cul style=\"list-style:none;padding:0;margin:0;\"\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;gap:20px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eModel\u003c\/span\u003e\u003cspan style=\"font-weight:600;text-align:right;\"\u003ePUJIMAX USB-9V, 6F22 form factor\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;gap:20px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eVoltage\u003c\/span\u003e\u003cspan style=\"font-weight:600;text-align:right;\"\u003e9V nominal\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;gap:20px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eCapacity\u003c\/span\u003e\u003cspan style=\"font-weight:600;text-align:right;\"\u003e1200mAh\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;gap:20px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eChemistry\u003c\/span\u003e\u003cspan style=\"font-weight:600;text-align:right;\"\u003eLithium-ion, reusable\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;gap:20px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eDimensions\u003c\/span\u003e\u003cspan style=\"font-weight:600;text-align:right;\"\u003e47.5 x 26 x 16.5 mm (plus or minus 0.5 mm)\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;gap:20px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eCharging port\u003c\/span\u003e\u003cspan style=\"font-weight:600;text-align:right;\"\u003eUSB Type-C, 5V input at 400mA\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;gap:20px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eConversion efficiency\u003c\/span\u003e\u003cspan style=\"font-weight:600;text-align:right;\"\u003e88 to 92 percent\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;gap:20px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eCharge indicator\u003c\/span\u003e\u003cspan style=\"font-weight:600;text-align:right;\"\u003eRed while charging, green when full\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;gap:20px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eCycle life\u003c\/span\u003e\u003cspan style=\"font-weight:600;text-align:right;\"\u003eUp to 1200 charges\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;gap:20px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003ePack options\u003c\/span\u003e\u003cspan style=\"font-weight:600;text-align:right;\"\u003e4, 6 or 8 cells\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli style=\"padding:10px 0;border-bottom:1px solid #f0f0f0;display:flex;justify-content:space-between;gap:20px;\"\u003e\n\u003cspan style=\"color:#555;\"\u003eWarehouse\u003c\/span\u003e\u003cspan style=\"font-weight:600;text-align:right;\"\u003eUnited States stock\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-applications\" style=\"margin-top:28px;\"\u003e\n\u003ch3 style=\"font-size:20px;margin-bottom:10px;\"\u003eWho It Is For\u003c\/h3\u003e\n\u003cp\u003eThe obvious use is the smoke detector on the landing, where a nine-volt cell is a safety component rather than a convenience. Beyond that, the Volt Keeper suits guitarists running battery-powered pedals who are tired of mid-set failures, technicians whose multimeters sit idle for weeks and then need to work immediately, hobbyists with RC transmitters, and households maintaining thermostats, doorbells and childrens toys that all take the same cell. Anyone who has ever bought a bulk pack of alkalines and thrown most of them away half-used is the intended owner.\u003c\/p\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-faq\" style=\"margin-top:28px;\"\u003e\n\u003ch3 style=\"font-size:20px;margin-bottom:14px;\"\u003eField Questions\u003c\/h3\u003e\n\u003cdiv style=\"margin-bottom:18px;\"\u003e\n\u003cp style=\"margin:0 0 6px 0;\"\u003e\u003cstrong\u003eQ: Will it fit a standard smoke detector?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#444;\"\u003eYes. The cell uses the standard 6F22 nine-volt footprint at 47.5 x 26 x 16.5 mm, so it drops into the same compartment as a disposable. Check that your detector specifies a 9V battery, not a sealed lithium pack.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;\"\u003e\n\u003cp style=\"margin:0 0 6px 0;\"\u003e\u003cstrong\u003eQ: How do I charge it?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#444;\"\u003ePlug a USB Type-C cable directly into the port on the cell. The indicator shows red while charging and green when full. Do not use a traditional nine-volt charger on this battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;\"\u003e\n\u003cp style=\"margin:0 0 6px 0;\"\u003e\u003cstrong\u003eQ: Can I use it in devices that draw high current?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#444;\"\u003eLithium cells hold voltage well under load, which suits multimeters, pedals, transmitters and alarms. For devices with very high continuous draw, check the manufacturer specification first.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;\"\u003e\n\u003cp style=\"margin:0 0 6px 0;\"\u003e\u003cstrong\u003eQ: What happens if I leave it in a device for months?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#444;\"\u003eSelf-discharge is low, so it will still have capacity after long storage. For devices left unused for more than six months, remove the cell as good practice.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;\"\u003e\n\u003cp style=\"margin:0 0 6px 0;\"\u003e\u003cstrong\u003eQ: Is one pack enough for a whole house?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#444;\"\u003eA four-cell pack typically covers a detector plus several small devices. The six and eight cell packs suit households with multiple detectors, instruments or RC gear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;\"\u003e\n\u003cp style=\"margin:0 0 6px 0;\"\u003e\u003cstrong\u003eQ: How long does a charge take?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#444;\"\u003eCharging runs at 400mA through Type-C with the indicator switching to green when complete. A full charge from empty takes a few hours.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;\"\u003e\n\u003cp style=\"margin:0 0 6px 0;\"\u003e\u003cstrong\u003eQ: How do I know when charging has finished?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#444;\"\u003eThe indicator on the cell shows red while current is flowing and turns green once the cell is full. Unplug at that point rather than leaving it connected indefinitely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom:18px;\"\u003e\n\u003cp style=\"margin:0 0 6px 0;\"\u003e\u003cstrong\u003eQ: Can I store these in a drawer through winter?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#444;\"\u003eYes. Lithium cells with low self-discharge hold their charge across months of storage. Bring them to roughly half charge before long storage and top them up before the season starts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\u003cdiv class=\"product-gallery\" style=\"margin-top:30px;text-align:center;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sa7e82c9029cd413faff4f9073d8c7032x.webp?v=1793160320\" alt=\"The Volt Keeper\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:10px;margin:12px 0;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S0677fedb252746c291878116fc8697e4W.webp?v=1793160320\" alt=\"The Volt Keeper\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:10px;margin:12px 0;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sf5cf3d8ecb24474490d0ef88921b5977Q.webp?v=1793160320\" alt=\"The Volt Keeper\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:10px;margin:12px 0;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Scfb935b03f724cbea1674b3522f19442w.webp?v=1793160320\" alt=\"The Volt Keeper\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:10px;margin:12px 0;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S726d3da27b02443396c0ed8559b0abb8y_898794be-a801-4739-b34d-12dd7bb86a99.webp?v=1793160320\" alt=\"The Volt Keeper\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:10px;margin:12px 0;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sc83564b8f8dc4c009f6b04386cfed8d7v.webp?v=1793160320\" alt=\"The Volt Keeper\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:10px;margin:12px 0;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S15a06c82774d435c91ef5e4411f835eb0_83a69622-696d-41d6-ad3a-f3c92f4fbb1f.webp?v=1793160320\" alt=\"The Volt Keeper\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:10px;margin:12px 0;display:block;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/S9f35383e650e4c21b64c31ba54ba2e6cg.webp?v=1793160320\" alt=\"The Volt Keeper\" loading=\"lazy\" style=\"max-width:100%;height:auto;border-radius:10px;margin:12px 0;display:block;\"\u003e\n\u003c\/div\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"Product\",\"name\":\"The Volt Keeper | 1200mAh USB-C Rechargeable 9V Li-ion Battery\",\"description\":\"PUJIMAX USB-9V, 6F22 form factor 9V nominal\",\"brand\":{\"@type\":\"Brand\",\"name\":\"EastSupplier\"},\"sku\":\"15468078432479\",\"url\":\"https:\/\/eastsupplier.com\/products\/the-volt-keeper-usb-c-rechargeable-9v-battery\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"51.33\",\"availability\":\"https:\/\/schema.org\/InStock\",\"url\":\"https:\/\/eastsupplier.com\/products\/the-volt-keeper-usb-c-rechargeable-9v-battery\",\"seller\":{\"@type\":\"Organization\",\"name\":\"EastSupplier\"}},\"aggregateRating\":{\"@type\":\"AggregateRating\",\"ratingValue\":\"4.8\",\"reviewCount\":\"4\"}}\u003c\/script\u003e","brand":"EastSupplier Platform","offers":[{"title":"4pcs 9V Battery \/ United States","offer_id":68322061779167,"sku":"1005013040602214-4pcs 9V Battery-United States","price":51.33,"currency_code":"USD","in_stock":true},{"title":"6pcs 9V Battery \/ United States","offer_id":68322061811935,"sku":"1005013040602214-6pcs 9V Battery-United States","price":67.47,"currency_code":"USD","in_stock":true},{"title":"8pcs 9V Battery \/ United States","offer_id":68322061844703,"sku":"1005013040602214-8pcs 9V Battery-United States","price":70.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0503\/6412\/1244\/files\/Sa7e82c9029cd413faff4f9073d8c7032x.webp?v=1793160320","url":"https:\/\/eastsupplier.com\/ru\/products\/the-volt-keeper-usb-c-rechargeable-9v-battery","provider":"EastSupplier Platform","version":"1.0","type":"link"}