What is the warranty period for the cells?

You can test the cells within 15 days of arrival. If no problems are found after 15 days, the batteries are considered problem-free and no returns or refunds are provided.

High Capacity E58 E61 3.7V Li-ion Soft Pack Rechargeable Pouch Cell High Performance Lithium Ion Battery Large Capacity Lipo E66 E78 P37

Name: High Capacity E58 E61 3.7V Li-ion Soft Pack Rechargeable Pouch Cell High Performance Lithium Ion Battery Large Capacity Lipo E66 E78 P37
Brand: Shenzhen Hengwangda New Energy Technology Co., Ltd.
SKU: 2135815472

Guangdong, ChinaShenzhen Hengwangda New Energy Technology Co., Ltd.

US$19.00

10-99 pieces

US$17.00

100-999 pieces

US$16.00

1,000-9,999 pieces

US$13.00

10,000+ pieces

Product specifications

Polymer Battery

Sample price:US$100.00/piece.Request sample

Product profile

Customization

Available

Type

LiFePO4 Battery

Cathode Material

LFP

Model NO.

LG E61

Rechargeable

Yes

Size

11.5*98*350mm

Model Number

3.7V 61ah

Capacity

61ah

Weight

850g

Electric Energy

225.7

Voltage

3.7(V)

Cycle Life

6000 Times

Cathode Materials

Ncm

Battery Size

Polymer Battery

Operating Temperature(℃)

0-22℃

Battery Type

Solid State

Apllication

Consumer Electronics, Power Tools, Boats

Transport Package

42*25*30cm

Specification

11.5*98*350mm

Trademark

Other

Origin

Guangdong, China

HS Code

8507600090

Production Capacity

500000 Pieces/Moon

Key features

High Cycle Life: 6000 times cycle life for long-term durability and performance.

Pre-tested Quality: Each cell tested for voltage, resistance, and appearance before shipment.

Free Accessories: Includes 1 busbar and 2 bolts/studs per cell at no extra cost.

Safe Packaging: 5-layer corrugated carton with sponge and insulation tape for protection.

Versatile Application: Suitable for 12V-108V systems, solar storage, RVs, and boats.

Flexible Customization: Offers full customization, minor customization, and sample-based options.

Certified Safety: Products certified with FCC and CE standards for safety compliance.

Fast Shipping: RTS priority shipping with lead time within 15 workdays.

Company profile

In-stock CapacityFast DeliveryProduct CertificationQuality Assurance

Shenzhen Hengwangda New Energy Technology Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 4 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤15h

AI-Powered supplier vetting

SummaryThe supplier is a combined company focused on lithium battery sales, customized solutions, and technical support. It reports strong R&D capabilities, new products within the past year, ODM services, and broad customization options. Production evidence is limited to one production line, with no ongoing quantity reconciliation and no standardized outsourcing procedure. Service processes and corrective-action procedures exist but lack written records, while overseas support is limited: no agents, branches, warehouses, showrooms, or offline trade-show participation are reported. Quality assurance is stated, but certification, financial credibility, and customer-case evidence are not provided.

Supplier typeThe supplier is identified as a combined company rather than an offshore company. Its described business centers on lithium battery sales, customized solutions, and technical support, indicating a supplier combining commercial and operational functions.

R&D capabilityThe supplier reports an R&D team, new products within the past year, and ODM service availability. Its focus on customized lithium battery solutions and technical support further supports active product-development capability.

Production capacityThe supplier reports one production line and in-stock capability, but it has no valid manufacturing-capacity contract with associated subcontractors, no ongoing batch quantity reconciliation, and no standard outsourcing procedure. These documented controls indicate production-management weaknesses despite the stated production capacity.

Customization capabilityThe supplier explicitly supports customization from samples, minor and full customization, customization from designs, flexible customization, and ODM services. Its core business also includes customized lithium battery solutions, providing direct evidence of broad customization capability.

Product Q&A

Q:Are the batteries supplied with busbars and bolts?

Yes, each battery comes with 1 busbar and 2 bolts or studs for free. If you need more or special types, please contact us online.

Q:What is the return and refund policy?

Returns are only accepted if the battery is unused (electrode intact, no welding, good appearance). Buyers must pay for return shipping. We do not accept refunds for wrong assembly, damage from improper use, or bulge/welding issues.

Q:How should I handle damaged or missing items during shipping?

Please contact us first and send pictures or videos to check. If the battery is damaged or lost, we will communicate to resend, replace, or refund the product cost.

Q:How can I place an order for these products?

We accept Trade Assurance orders online. For RTS products, you can pay directly if shipping cost is clear, or provide shipping info to our sales team to create an online order for you.

Q:What are the specifications for DIY battery pack assembly?

DIY battery packs must have cells balanced (same voltage) before assembly. We ensure single battery quality, but do not accept refunds for assembly errors or unbalanced packs.