{"id":3867,"date":"2026-09-10T05:56:48","date_gmt":"2026-09-10T05:56:48","guid":{"rendered":"https:\/\/bakth-battery.com\/?post_type=product&p=3867"},"modified":"2026-09-10T05:56:48","modified_gmt":"2026-09-10T05:56:48","slug":"bakth-21700-2s-3-7-2v-4800mah-34-56wh","status":"publish","type":"product","link":"https:\/\/bakth-battery.com\/de\/produkt\/bakth-21700-2s-3-7-2v-4800mah-34-56wh\/","title":{"rendered":"BAKTH-21700-2S-3, 7.2V, 4800mAh, 34.56Wh Compact 21700 Li-ion Battery Pack"},"content":{"rendered":"
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For equipment designers and B2B manufacturers seeking a reliable, long-cycle 21700 lithium power source for portable instruments, the BAKTH-21700-2S-3 2S battery pack delivers stable 7.2V power within a tightly constrained compact footprint. Built from premium grade 21700 lithium cells, this pack provides 4.8Ah capacity and 34.56Wh stored energy, optimized for low-rate charging scenarios where battery lifespan and operational reliability take priority over fast charging.<\/div>\n<\/div>\n
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The electrical working parameters are optimized for long-term continuous field operation. It features a maximum charge voltage of 8.4V and 5.6V discharge cut-off threshold. The recommended 0.5C charging rate minimizes cell aging, greatly improving total cycle life for devices that are recharged daily. The embedded BMS continuously monitors cell voltage balance, activating protection against overcharge, overdischarge and short circuit. It maintains steady discharge performance across a wide -20\u2103 to 60\u2103 temperature spectrum, adapting to cold outdoor field sites as well as warm indoor workshop environments.<\/div>\n<\/div>\n
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All battery packs pass third-party independent testing. Complete certification documentation including IEC62133 safety certification, UN38.3 transport approval and RoHS compliance reports can be provided for bulk orders. The full certification set reduces the workload of your product compliance verification and simplifies cross-border shipment & customs clearance to global industrial markets.<\/div>\n<\/div>\n
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This battery pack features compact outer dimensions (max 75mm \u00d7 44mm \u00d7 22mm) and a light total weight of only 145g. Its slim profile makes it easy to integrate into handheld devices with limited internal space. Our engineering team can customize wire length, connector types and surface labeling according to your device\u2019s mechanical and electrical requirements. No large modification to your existing device shell is required when switching to this power solution.<\/div>\n<\/div>\n
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We provide stable long-term bulk supply service for global B2B clients. Three branding options are available: standard BAKTH branded packs, neutral unlabeled batteries, and fully customized OEM packs printed with your corporate logo. Every finished battery undergoes multi-stage QC inspection before shipment, covering capacity grading, cell balancing, internal resistance testing and sample cycle life validation, to guarantee uniform performance across your mass-produced finished products.<\/div>\n<\/div>\n
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Core Specifications<\/h3>\n<\/div>\n
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Item<\/th>\nParameter<\/th>\n<\/tr>\n<\/thead>\n
Model No.<\/td>\nBAKTH\u201121700\u20112S\u20113<\/td>\n<\/tr>\n
Nominal Voltage<\/td>\n7.2 V<\/td>\n<\/tr>\n
Nominal Capacity<\/td>\n4.8 Ah<\/td>\n<\/tr>\n
Energy<\/td>\n34.56 Wh<\/td>\n<\/tr>\n
Max. charging voltage<\/td>\n8.4 V<\/td>\n<\/tr>\n
Cut\u2011off voltage<\/td>\n5.6 V<\/td>\n<\/tr>\n
Max. charge current<\/td>\n0.5C<\/td>\n<\/tr>\n
Discharging temperature<\/td>\n-20\u2103 ~ 60\u2103<\/td>\n<\/tr>\n
Dimension(L\u00d7W\u00d7H)<\/td>\n75mm \u00d7 44mm \u00d7 22mm (Max)<\/td>\n<\/tr>\n
Weight<\/td>\n145g<\/td>\n<\/tr>\n
Certifications<\/td>\nIEC62133 \/ UN38.3 \/ RoHS<\/td>\n<\/tr>\n
Custom Option<\/td>\nOEM, Neutral\u2011Label, Wire & Connector Customization<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n
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Typical B\u2011End Application Scenarios<\/h3>\n<\/div>\n
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Handheld gas detectors, portable environmental sensors, field water quality testers, compact portable data loggers, handheld measuring meters, portable air monitoring devices, small field sampling instruments, wireless portable alarm transmitters.<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

High energy-density 2-series 21700 lithium-ion power pack<\/p>\n

BAKTH-21700-2S-3, rated 7.2V 4.8Ah 34.56Wh, engineered with controlled 0.5C low charging rate to extend cycle longevity. Built-in integrated BMS safeguards against multi electrical hazards, fully compliant with IEC62133, UN38.3 and RoHS standards. Maintains consistent power output under -20\u2103~60\u2103 wide temperature range. Compact lightweight 145g rechargeable battery assembly, customizable OEM branding & wiring solutions, bulk sourcing for portable field test hardware and battery-powered sensing systems.<\/p>","protected":false},"featured_media":3868,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[85],"product_cat":[32,87],"product_tag":[324,321,323,322,327,329,326,328,325,276,330,331],"class_list":["post-3867","product","type-product","status-publish","has-post-thumbnail","product_brand-bakth","product_cat-uncategorized","product_cat-lithium-ion-battery-pack","product_tag-0-5c-low-charge-rate-battery-pack","product_tag-21700-2s-lithium-battery-pack","product_tag-34-56wh-compact-industrial-battery","product_tag-7-2v-4-8ah-rechargeable-battery","product_tag-bms-protected-lithium-battery","product_tag-custom-connector-battery","product_tag-handheld-field-detector-power-supply","product_tag-iec62133-un38-3-rohs-battery","product_tag-long-cycle-life-li-ion-pack","product_tag-neutral-label-battery-wholesale","product_tag-oem-21700-battery-manufacturer","product_tag-portable-instrument-lithium-battery","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product\/3867","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=3867"}],"version-history":[{"count":1,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product\/3867\/revisions"}],"predecessor-version":[{"id":3873,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product\/3867\/revisions\/3873"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/media\/3868"}],"wp:attachment":[{"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/media?parent=3867"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product_brand?post=3867"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product_cat?post=3867"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/bakth-battery.com\/de\/wp-json\/wp\/v2\/product_tag?post=3867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}