What is the minimum order quantity?

The minimum order quantity is 2 pieces.

How can I verify correct installation?

Check battery voltage with a multimeter and listen for a quiet high-frequency sound from the balancers.

Qnbbm Lithium Battery Equalizer 4s 12V Balancer LiFePO4 Lto Ncm Lmo 18650 DIY Pack Voltage Balancing

Name: Qnbbm Lithium Battery Equalizer 4s 12V Balancer LiFePO4 Lto Ncm Lmo 18650 DIY Pack Voltage Balancing
Brand: Changsha Deligreen Power Co., Ltd.
SKU: 896298665

Hunan, ChinaChangsha Deligreen Power Co., Ltd.

US$72.00

1-99 Pieces

US$69.00

100-499 Pieces

US$66.00

500-999 Pieces

US$62.00

1,000+ Pieces

Product profile

Customization

Available

Certification

RoHS, CE

Recyclable

Model NO.

QNBBM-B

Condition

New

Battery Type

Li Ion/Lead Acid/Lto/Supercapacitor

Brand

Qnbbm

Logo

Customizable

MOQ

2PCS

Certificate

RoHS Ce

Shipment

DHL/UPS/FedEx/E-Packet

Balance Current

Volatge Differences

1V-3A

Working Effciency

>94%

Voltage Difference

<10mv

Balance Method

Energy Transfer& Dynamic

Working Voltage

1.8V-5V

Battery Count Limited

Unlimited

Power Consumption

<50MW Per 1s

Transport Package

Standard Express Packing

Specification

85*40*25

Trademark

Deligreen

Origin

China

HS Code

9032899090

Production Capacity

10000 Piece/Month

Key features

High Efficiency Balancing: Working efficiency exceeds 94% with dynamic energy transfer method.

Ultra-Low Voltage Difference: Maintains voltage difference under 10mV for precise battery balancing.

Wide Voltage Compatibility: Supports working voltage from 1.8V to 5V for various battery types.

Low Power Consumption: Idle current draw is less than 50mW per second for energy saving.

Flexible Series Configuration: Modules work with 3, 4, 5, 6, or 8 batteries in series (3S-8S).

Customizable Logo: Logo is customizable for branding purposes on the product.

Certified Quality: Products are certified with RoHS and CE standards for safety.

Easy Installation: Simple wiring design with included interconnecting and battery wiring.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceExperienced Team

Changsha Deligreen Power Co., Ltd.

Hunan, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Minor Customization CertifiedExport Year: 6 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤15h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryChangsha Deligreen Power Co., Ltd. is a China-based trading company established in 2017, with 12 employees and a valid import/export license. It offers battery chargers, EV charging products, cables, and battery-monitoring products, and reports broad export-market coverage. The supplier states annual production of 10,000,000 active battery balancers and order fulfillment within 15 workdays in both peak and off-peak periods. However, it has no supplier-management-system certification, no new products launched in the past year, no ODM, major-brand OEM, or SDK capability, and only minor customization capability. Service governance is weakly documented: complaint handling and corrective/preventive-action procedures have no written procedures or records. It has an overseas warehouse but no overseas showroom, agents or branches, or offline trade-show participation. Customer feedback is self-reported as 99.5% positive, but no customer cases are provided.

CertificationsThe supplier’s certification of management systems is explicitly recorded as NIL. No management-system certification is evidenced in the provided information.

After-Sales capabilityThe supplier claims fast and reliable after-sales service and 99.5% positive customer feedback, and it has an overseas warehouse. However, it reports no written procedures or records for complaint handling or corrective and preventive actions, with no overseas agents or branches, so formal service capability is inadequately controlled.

R&D capabilityThe supplier reports two years of total R&D-engineer experience, but no new products were launched during the past year. It also states no R&D product-information progress, no ODM service, no major-brand OEM capability, and no available SDK, indicating limited documented innovation capability.

Production capacityThe supplier reports 10,000,000 pieces of annual active battery-balancer output, order fulfillment within 15 workdays in both peak and off-peak seasons, and six quality-control staff, while operating with 12 employees overall. These figures support stated production and delivery capacity, although its trading-company classification means manufacturing arrangements are not fully clarified.