Custom 21700 lithium battery pack with smart BMS and harness for OEM equipment projects

Custom 21700 lithium battery pack with smart BMS and harness for OEM equipment projects 1

Custom 21700 lithium battery pack with smart BMS and harness for OEM equipment projects 2

Custom OEM Packs

Custom 21700 Lithium Battery Pack

Custom cylindrical cell battery pack for OEM devices and industrial equipment, with series-parallel architecture, enclosure, connector, BMS, and communication planning.

21700CustomBMS

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Certification support

UN38.3MSDS

Browsing path: Custom Battery Packs & OEM/ODM Services

Quick shortlist specs

Full specs are confirmed in the technical table

Voltage

Custom voltage

Capacity

Project specific

Chemistry

21700 Li-ion / NMC by project

Energy

Device matched

Max discharge

Peak current planned

Cycle life

Cell dependent

Dimensions

Device envelope

Applications

Description & Applications

Custom cylindrical cell battery pack for OEM devices and industrial equipment, with series-parallel architecture, enclosure, connector, BMS, and communication planning.

Medical devicesRoboticsIoT hardware

Representative data, confirmed during RFQ

The tables below summarize supplier brochure data for selection. Final use should confirm duty cycle, certification documents, sample status, and production availability.

Spec table index

Custom PACK engineering options Smart battery module examples

Cell-module-PACK path	Cell selection, smart module structure, BMS, enclosure, harness, and final PACK integration can be scoped as one project path
Pack architecture	6S1P, 12S1P, and custom series-parallel configurations reviewed by voltage, current, and runtime
Enclosure options	Soft pack, plastic housing, or metal enclosure depending on equipment space and protection needs
Connector options	XT60, XT90, AS150, harness, signal line, and custom discharge connector planning
Smart pack design	BMS protection board, communication protocol, SOC reporting, and charger behavior can be reviewed for smart PACK projects
Certification support	UL, CB, KC, SGS, UN38.3, CCC, and project-specific document planning

Custom PACK engineering options

Use these options as RFQ inputs when sending drawings, current profile, enclosure constraints, and target certification market.

Engineering area	Options	RFQ check
Integration level	Cell selection, smart module layer, final PACK integration	Clarifies whether the buyer needs cells, modules, or install-ready battery packs
Series-parallel design	6S1P, 12S1P, and custom multi-series / multi-parallel packs	Voltage, continuous current, pulse current, runtime
Enclosure	Soft pack, plastic shell, metal shell	Device space, vibration, sealing, service access
Connector	XT60, XT90, AS150, harness, custom discharge plug	Peak current, wire gauge, plug position, polarity safety
Smart BMS	Protection board, communication protocol, SOC and fault reporting	Host controller, charger, protection thresholds, certification target
Certification documents	UL, CB, KC, SGS, UN38.3, CCC planning	Target market, shipment mode, importer requirements

Smart battery module examples

Representative brochure data for small-power custom smart modules with communication and battery management. The 2P20S energy value should be rechecked against the original brochure during RFQ because 75V x 60Ah is normally 4500Wh.

Smart module	Cell spec and count	Nominal voltage	Nominal capacity	Rated energy	Size / weight	Documents
3P21S - 78.75V	30Ah / 63 cells	78.75V	90Ah	7087.5Wh	300 x 360 x 245mm / <=35kg	GB, UN38.3
2P20S - 75V	30Ah / 40 cells	75V	60Ah	Brochure value to recheck	540 x 240 x 130mm / <=26kg	GB, UN38.3

Download Technical Datasheet & Drawing

Custom 21700 Battery Pack

Leave your email and project application. We will treat the datasheet request as a high-intent RFQ and follow up with drawings and matching advice.

Accessories

Capacity upsell & related products

BMS

Harness

Connector

18650CustomStable supply

Custom 18650 Battery Pack

Mature 18650 cylindrical-cell battery pack platform for OEM devices that need stable sourcing, flexible series-parallel design, BMS protection, wiring harnesses, and cost-controlled sampling.

Voltage: Custom voltage
Cell platform: 18650 Li-ion / NMC by project
Integration: Cell + BMS + PACK

IoT hardwareMedical devices

Request Specs & Price Technical Details

Custom pouch lithium battery pack for thin OEM devices with lightweight cell format, protection PCB planning, and connector matching

PouchThin profileCustom shape

Custom Pouch Battery Pack

Thin-profile pouch lithium battery pack platform for compact OEM devices, medical products, smart hardware, and shaped enclosures that require cell thickness, tab direction, protection PCB, and connector matching.

Voltage: Custom voltage
Cell platform: Pouch Li-ion / NMC / polymer by project
Integration: Cell + BMS + PACK

WearablesMedical devices

Request Specs & Price Technical Details

Custom polymer lithium battery pack for high-rate OEM equipment with pouch-cell format, discharge connector planning, and thermal review

PolymerHigh-rateOEM

Custom Polymer Battery Pack

Custom lithium polymer battery pack platform for high-rate or lightweight OEM equipment, including UAV, tools, RC models, pulse-power devices, and portable systems that need discharge-rate, connector, compression, and thermal review.

Voltage: Custom voltage
Cell platform: High-rate LiPo / polymer by project
Integration: Cell + BMS + PACK

UAV and dronesPower tools

Request Specs & Price Technical Details

Custom 21700 Lithium Battery Pack

Description & Applications

Custom PACK engineering options

Smart battery module examples

Over-current

Short-circuit

Temperature

Custom 21700 Battery Pack

Capacity upsell & related products

Custom 18650 Battery Pack

Custom Pouch Battery Pack

Custom Polymer Battery Pack