ShenZhen XTAR Electronics Co., Ltd
                                                                                                           
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Li Ion 21700 Protected Battery 70A RoHS CE 21700 Rechargeable Lithium Battery

Price Negotiable
Price: $2.55/pcs
MOQ: 500
Delivery Time: 7-30 Days
Brand: XTAR
Product Description
High Capacity 21700 Batteries with 5000mAh Power and 70A Peak Discharge
Product Overview

XTAR 3.6V 21700 5000mAh High-Capacity Rechargeable Li-ion Battery (Flat Top, 70A Peak Discharge, RoHS/CE Certified)

Key Features
  • High Capacity & Power: 5000mAh capacity, supports 70A peak discharge (15A continuous) for intense performance
  • Extreme Environment Ready: Reliable operation in -20℃ to 60℃, ideal for rugged outdoor use
  • Longevity & Durability: Over 500 charge cycles, maintaining stable performance over time
  • Safe & Eco-Friendly: RoHS/CE certified, mercury/cadmium/lead-free, with built-in safety protection
  • Compact & Lightweight: Measures 21.45×70.65mm, weighs ≤72g, easy to carry and install
Technical Specifications
Model 3.6V 21700 5000mAh Raw
Capacity 5000mAh
Voltage 3.6V
Max Continuous Discharge Current 15A
Max Pulse Discharge Current 70A (2s pulse)
Charging Voltage 4.2 ± 0.05V
Charging Current 2.5A
Operating Temperature -20-60°C
Storage Temperature -20-45°C
Cycle Life 500+
Protected No
Positive Terminal Flat Top
Dimensions (mm) Φ21.45±0.2 x H70.65±0.3
Net Weight (g) ≤72
Applications
XTAR battery applications in various devices
About XTAR

Established in 2006, XTAR is a leading provider of high-quality lithium-ion batteries, smart chargers, and LED flashlights. Based in Shenzhen, we integrate R&D, production, and sales to deliver innovative power solutions. With over 20 years of expertise, XTAR is your trusted partner for reliable energy products, offering customized solutions for OEM and wholesale clients.

Company Timeline
2005: Developed PK keychain flashlight with superior batteries and LEDs for brighter performance and longer runtime
2006: Introduced industry's first protected 16340 and 18650 lithium-ion batteries
2009: Pioneered three-stage charging technology for lithium batteries
2011: Launched WP2II charger with 0V activation & USB output
2013: Released PANZER XP4, first intelligent charger for lithium-ion and nickel-metal hydride batteries
2017: Launched Over 4 Slim, market's first 4.1A*2 fast charger with advanced detection
2020: Introduced next-gen 1.5V rechargeable AA lithium batteries
2024: Expanded 1.5V AA/AAA lithium battery line with Constant Voltage + Linear series
2025: Joined U.S. ATA & SHOT Show, launched world-first touch battery power check technology
Manufacturing Capabilities

We operate our own factory with efficient production processes ensuring precise production cycles. Manufacturing under our original brand guarantees product consistency and provides convenient maintenance and after-sales service. XTAR integrates the brand values of safety, reliability, and innovation into every product.

XTAR manufacturing facility and production processes
Partners
XTAR global partners and distribution network
Global Certifications
ISO-9001 Certification
MSDS Certification
UN38.3 Certification
CE Certification
RoHS Certification
XTAR product certification documents and compliance badges
Frequently Asked Questions
Can I have a sample order for Battery/Charger?
Yes, we welcome sample orders to test and check quality. Mixed samples are acceptable.
What about the lead time?
Sample needs 1-2 days, mass production time needs 3-7 working days.
How do you ship the goods and how long does it take to arrive?
DHL, UPS, FedEx or TNT and others shipping method is available. Arriving time depends on the way you choose. Airline and sea shipping also optional. Warehouse in Texas, shipment is free in US.
Is it OK to print my logo on the product?
Yes. We have our own R&D Department and Factory. Both OEM and ODM are acceptable.
What industries do you provide supporting equipment for?
We can provide professional supporting services for many industries, such as electric toothbrushes, thermal imagers, infrared devices, thermal imaging scope, flashlights, toy cars, smart locks, and more.
Where do you ship from?
We can ship from Shenzhen, China, and we also have overseas warehouses in the U.S., so we can also ship directly from the U.S.

Get in Touch

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

Company ShenZhen XTAR Electronics Co., Ltd
Location 5th Floor, No.77 Xinhe Rd, Shangmugu, Pinghu Area, Longgang District, Shenzhen, Guangdong, China
Contact Person Dylan

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