What are the shipping options?

We offer door-to-door service via UPS, DHL, FedEx, and TNT, or shipping by air/vessel through your forwarder.

What is the lead time for orders?

Peak season lead time is one month, while off-season lead time is within 15 workdays.

What is the after-sale service policy?

We provide half a year warranty, track orders until delivery, choose safe shipping, and replace broken parts in future orders.

Solar Lithium Battery High Power 3.7V 4000mAh Rechargeable Lithium Battery 21700 for Power Tools

Name: Solar Lithium Battery High Power 3.7V 4000mAh Rechargeable Lithium Battery 21700 for Power Tools
Brand: Shenzhen Xinxinchen Technology Co., Ltd.
SKU: 2171411565

Guangdong, ChinaShenzhen Xinxinchen Technology Co., Ltd.

US$2.15

2-499 Pieces

US$2.10

500-2,999 Pieces

US$1.95

3,000-9,999 Pieces

US$1.85

10,000-49,999 Pieces

US$1.78

50,000+ Pieces

Sample price:US$2.15/piece.Request sample

Product profile

Customization

Available

Type

Li-ion Battery

Cathode Material

NCM

Model NO.

40P

Rechargeable

Yes

Size

Medium

Model No

Inr21700-40p 4000mAh 40A/ 50A

Cycle Life

500-1000

Applications

E-Scooter,E-Bike

Discharge Current

50A

Warranty

1 Years

Voltage

3.7V

Quality

Original Grade a

Capacity

4000mAh

Transport Package

Original Packing

Specification

INR21700-40P 4000mAh 40A/ 50A

Trademark

EVE

Origin

China

HS Code

8506500000

Production Capacity

500000PCS/Month

Key features

High Capacity 4000mAh: Provides substantial energy storage for power tools and e-bikes with 3.7V rated voltage.

High Discharge Current: Supports up to 50A max discharge and 40A continuous discharge for high-power applications.

Fast Charging Time: Fully charges in just 1.5 hours using a standard CC/CV charger with a max rate of 2A.

OEM Customization: Accepts OEM orders for custom battery pack projects including model, capacity, and color.

Long Cycle Life: Ensures durability with over 500 charge-discharge cycles for reliable long-term performance.

Fast Shipping Options: Offers door-to-door service via UPS, DHL, FedEx, and TNT for quick global delivery.

Large Stock Availability: Maintains large inventory for fast shipping and accepts small quantity sample orders.

Company profile

Shenzhen Xinxinchen Technology Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤3.91h

AI-Powered supplier vetting

SummaryThe supplier is identified as Shenzhen Xinxinchen Technology Co., Ltd., a China-based company in Shenzhen's Bao'an District. The records describe it as both a trading company and a manufacturer/factory, with a business scope covering batteries, photovoltaic equipment, energy-storage services, and related products. It holds ISO 9001 certification and reports 6–10 R&D engineers and 6–10 quality-control staff. Customization capabilities are broad, including sample-, design-, full-, minor-, and flexible customization. However, no SDK is available and no new products were launched during the past year. Service strengths include a clear complaint-handling procedure with follow-up records, Shenzhen Port proximity, and stated lead times of within 15 workdays in both peak and off-peak periods. Financial credibility, raw-material traceability, environmental compliance, and fire-drill capability cannot be conclusively assessed from the provided records.

Supplier typeThe supplier is explicitly classified as a trading company in the business profile and is also identified as a manufacturer/factory in the company information. Its stated business scope covers battery sales, battery spare parts, photovoltaic equipment and components, energy-storage technology services, domestic trade agency, and security equipment sales.

CertificationsThe supplier reports holding ISO 9001 certification for its management systems. This is explicit evidence of certification holding, although no additional certifications are listed.

After-Sales capabilityThe supplier has a clear customer-complaint handling procedure supported by implementation records. It also reports service proximity to Shenzhen Port and lead times within 15 workdays in both peak and off-season periods; however, its corrective and preventive action mechanism has no written procedures or records.

R&D capabilityThe supplier reports 6–10 years of total experience among R&D engineers, but it has no available SDK and launched no new products during the past year. These explicit limitations prevent a positive assessment of current innovation capability.

Production capacityThe supplier is identified as a manufacturer/factory, reports annual output in the stated production range, and has 6–10 quality-control staff. It also states lead times within 15 workdays during both peak and off-season periods, supporting evidence of production and fulfillment capability.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization. Its company description also states that it accepts OEM orders for customer battery-pack projects, providing direct evidence of broad customization capability.