Shenzhen Enersour Electronics Co., Ltd.
                                                                                                           
Verified Supplier
13 Years
Since 2013
Menu

3.7V 18650 Lithium-Ion Rechargeable Battery 3400mAh with 10A Continuous Discharge for Flashlights

Price Negotiable
Price: Contact us
MOQ: 1 unit
Delivery Time: 7-45days
Brand: FBFUBANG INT'L
Product Description
Product Overview

High-performance 3.7V lithium-ion rechargeable 18650 battery with 3400mAh capacity, designed for flashlights and various electronic applications. Manufactured with premium Korean and Japanese components for reliable power delivery.

Technical Specifications
Parameter Value Notes
Nominal Capacity 3500mAh Discharge at 0.2A, 2.5V cutoff after standard charge
Rated Capacity 3400mAh Discharge at 0.2A, 2.5V cutoff after standard charge
Nominal Voltage 3.6V
Charge Voltage 4.2V ± 0.05V
Cut-off Voltage 2.5V
Maximum Charge Voltage 4.25V
Maximum Charge Current 4.0A (Continuous)
10.0A (Pulse)
Continuous Maximum Discharge Current 10.0A
Weight 46.0 ± 1.5g
Allowable Environment Temperature Charge: 0~+45℃
Discharge: -20~+60℃
CC-CV 4.20V, 2.0A, 2.5h
Energy Density 427Wh/l
Cell condition at shipment: About 70% discharged. Recommended charge conditions apply.
Key Features & Advantages
  • Long service life with 2000 cycles at 80% depth of discharge
  • High capacity 3400mAh rating for extended runtime
  • Low self-discharge rate (≤3% per month)
  • Excellent performance in low temperatures
  • Quick-charging capability with strong charging acceptance
  • Maintenance-free operation with no memory effect
  • Built-in BMS with comprehensive protection features
  • Environmentally friendly with no heavy metals
  • Compact size and lightweight design (46g)
  • High safety standards - no explosion or fire risk
  • Superior large current discharge performance
Storage & Maintenance Guidelines

Store batteries at room temperature in cool, dry conditions. Maintain charge level between 30-50% capacity. Avoid long-term storage in discharged state. Recommended charging frequency: once every three months to prevent over-discharge.

Product Images
3.7V 18650 lithium-ion battery front view showing specifications and branding 3.7V 18650 lithium-ion battery side profile and terminal details Multiple 18650 batteries arranged to show packaging and scale Close-up view of 18650 battery terminals and construction quality
Frequently Asked Questions
Q1: Can I get free sample?
A1: Generally we don't provide free samples, but we can refund sample costs when bulk orders are placed.
Q2: What is delivery time if we place an order?
A2: Delivery depends on order quantities. Small orders typically ship within 3-5 working days. Bulk order timelines are confirmed upon official order placement.
Q3: What's your payment and delivery terms?
A3: Payment terms: 30% deposit before production, balance before shipment. Small amounts accepted via PayPal. FOB, EXW, and CIF available.
Q4: What company will be used for making the shipments?
A4: We typically ship via DHL, UPS, and FedEx for reliable delivery.
Q5: Can I have customized packaging?
A5: Customized packaging with logos is available. Additional charges for customization are borne by the buyer.
Q6: Are you a factory or trading company?
A6: We are a professional battery manufacturer with our own factory and brand, offering comprehensive OEM/ODM services.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shenzhen Enersour Electronics Co., Ltd.
Location A218-1, Zerun Center, No. 1 Ban Xuegang Avenue, Bantian Street, Longgang District, Shenzhen, Guangdong Province
Contact Person Wang

Request A Quote

Please check your email address.
Your message must be at least 20 characters.