{"id":3748,"date":"2026-08-31T08:43:55","date_gmt":"2026-08-31T08:43:55","guid":{"rendered":"https:\/\/bakth-battery.com\/?post_type=product&p=3748"},"modified":"2026-08-31T08:44:57","modified_gmt":"2026-08-31T08:44:57","slug":"bakth-21700-1s-5000mah-18-25wh-single-cell-21700-lithium-ion-battery-pack","status":"publish","type":"product","link":"https:\/\/bakth-battery.com\/de\/produkt\/bakth-21700-1s-5000mah-18-25wh-single-cell-21700-lithium-ion-battery-pack\/","title":{"rendered":"BAKTH-21700-1S, 5000mAh, 18.25Wh Single\u2011Cell 21700 Lithium\u2011ion Battery Pack"},"content":{"rendered":"
\n
Created as a ready\u2011to\u2011install single\u2011cell power source for compact electronics designers, the BAKTH\u201121700\u20111S is a 1S configuration cylindrical lithium\u2011ion battery built from premium high\u2011capacity 21700 cell. Providing nominal voltage of 3.65V, rated capacity 5000mAh and stored\u2011energy value of 18.25Wh, this standalone battery delivers outstanding energy density within a slim tubular shape. It serves as a straightforward drop\u2011in power upgrade whenever your project only requires single\u2011cell voltage without multi\u2011cell series\u2011parallel assembly.<\/div>\n<\/div>\n
\n
Every single unit passes strict international compliance audits for cross\u2011border shipment and end\u2011market sales. It comes equipped with three globally\u2011recognized credentials: IEC62133 lithium\u2011ion cell safety certification, UN38.3 transport safety report and RoHS restricted\u2011substance compliance. This complete certification package removes major logistical obstacles, enabling your finished battery\u2011powered goods to be imported and sold smoothly throughout European, North\u2011American, Australian and other global territories. Reliable discharge capability remains stable across a broad temperature spectrum of\u201120\u2103 to 60\u2103, making this battery well suited for devices working indoors, sheltered outdoor locations and environments experiencing moderate temperature shifts.<\/div>\n<\/div>\n
\n
An on\u2011board integrated protection circuit board delivers comprehensive safety oversight during charging and discharging cycles. It actively guards against common failure risks such as over\u2011charge, deep over\u2011discharge and short\u2011circuit incidents. The protective hardware effectively preserves cell health, lengthening cycle longevity and shielding your low\u2011voltage mainboard circuits from unexpected power damage. This single\u2011cell pack supports a maximum charging current of 1.5A, upper\u2011limit charging voltage set at 4.2V and discharge cut\u2011off voltage of 2.8V. Factory\u2011soldered lead\u2011out wires and tiny plug\u2011in connector are pre\u2011fitted, eliminating extra soldering operations during your device assembly workflow.<\/div>\n<\/div>\n
\n
Housed inside a neat round plastic casing, the finished battery\u2019s maximum outer dimensions are 73.5mm(L) \u00d7 22mm(W) \u00d7 22mm(H), with an ultra\u2011light total weight of merely 75g. Thanks to its slender cylindrical profile, this battery fits easily inside narrow tubular or round\u2011shaped equipment cavities. Its lightweight characteristic will not add unnecessary load burden to handheld portable products, granting hardware engineers far\u2011more freedom for ergonomic casing layout.<\/div>\n<\/div>\n
\n
We provide tailored bulk\u2011order cooperation solutions for original equipment factories, electronic product developers, wholesale distributors and long\u2011run supply\u2011chain partners. Three branding selections are available: original BAKTH labelled battery, blank neutral battery with no logo printing, and comprehensive OEM customisation service, including connector replacement, custom\u2011made wire lengths, personalised outer\u2011shell labelling. Every finished batch goes through voltage matching inspection, cycle aging testing and final functional verification before delivery, ensuring uniform performance consistency across large\u2011volume shipments.<\/div>\n<\/div>\n
\n

Core Specifications<\/h3>\n<\/div>\n
\n
    \n
  • Model No.: BAKTH\u201121700\u20111S<\/li>\n
  • Nominal Voltage: 3.65 V<\/li>\n
  • Nominal Capacity: 5000 mAh<\/li>\n
  • Power Capacity: 18.25 Wh<\/li>\n
  • Max. charging voltage: 4.2 V<\/li>\n
  • Cut\u2011off voltage: 2.8 V<\/li>\n
  • Max. charge current: 1.5A<\/li>\n
  • Discharging temperature:\u201120~60\u2103<\/li>\n
  • Dimension (Max): 73.522<\/em>22 mm<\/li>\n
  • Weight: 75g<\/li>\n
  • Certifications: IEC62133 \/ UN38.3 \/ RoHS<\/li>\n
  • Brand Option: BAKTH \/ Neutral \/ OEM<\/li>\n<\/ul>\n<\/div>\n
    \n

    Typical B\u2011End Application Scenarios<\/h3>\n<\/div>\n
    \n
    Low\u2011power handheld data recorders, portable environmental monitoring probes, small\u2011size wireless sensor nodes, handheld medical auxiliary instruments, portable beauty\u2011care equipment, miniature smart household appliances, portable inspection pen\u2011style devices.<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

    Single\u2011cell cylindrical 21700 lithium\u2011ion battery pack BAKTH\u201121700\u20111S, 3.65V 5000mAh, ultra\u2011light standalone power unit, max 1.5A charging current. Fully certified with IEC62133, UN38.3 & RoHS, consistent discharge output from\u201120\u2103\u201160\u2103. Slim round rechargeable cell, flexible OEM modification & bulk sourcing, perfect for low\u2011power embedded consumer and industrial hardware.<\/p>","protected":false},"featured_media":3749,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[85],"product_cat":[32,87],"product_tag":[218,213,210,211,208,209,219,215,212,221,220,214,217,216],"class_list":["post-3748","product","type-product","status-publish","has-post-thumbnail","product_brand-bakth","product_cat-uncategorized","product_cat-lithium-ion-battery-pack","product_tag-20-60-wide-temperature-discharge","product_tag-1-5a-low-current-charging","product_tag-18-25wh-slim-tubular-power","product_tag-1s-li-ion-rechargeable-pack","product_tag-3-65v-single-cell-lithium-battery","product_tag-5000mah-21700-battery-pack","product_tag-built-in-cell-protection","product_tag-iec62133-safety-certified","product_tag-low-power-embedded-battery","product_tag-neutral-label-bulk-lithium-supply","product_tag-oem-single-cell-battery","product_tag-pre-wired-miniature-connector","product_tag-rohs-lithium-cell","product_tag-un38-3-shipping-compliant","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product\/3748","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/comments?post=3748"}],"version-history":[{"count":1,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product\/3748\/revisions"}],"predecessor-version":[{"id":3753,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product\/3748\/revisions\/3753"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/media\/3749"}],"wp:attachment":[{"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/media?parent=3748"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product_brand?post=3748"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product_cat?post=3748"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product_tag?post=3748"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}