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{"title":"Rechargeable Lithium Battery 21700 Battery Lithium Ion Cell 4900mAh Protected","imgUrl":"https:\/\/img.chinax.com\/nimg\/55\/4b\/8d27368db9a70783d574085ed9ce-200x200-1\/rechargeable_lithium_battery_21700_battery_lithium_ion_cell_4900mah_protected.jpg","attrs":{"Brand Name":"XTAR","Model Number":"21700 4900mAh","Certification":"CE\/RoHS\/UN38.3\/MSDS","Place of Origin":"China"}}
{"title":"Li Ion 21700 Protected Battery 70A RoHS CE 21700 Rechargeable Lithium Battery","imgUrl":"https:\/\/img.chinax.com\/nimg\/1a\/82\/d7a824455b6184d84f7de647b988-200x200-1\/li_ion_21700_protected_battery_70a_rohs_ce_21700_rechargeable_lithium_battery.jpg","attrs":{"Brand Name":"XTAR","Model Number":"21700 5000mAh Raw","Certification":"CE\/RoHS\/UN38.3\/MSDS","Place of Origin":"China"}}
{"title":"Rechargeable Lithium 21700 Batteries 5000mAh 25A Electronics Ion Cells","imgUrl":"https:\/\/img.chinax.com\/nimg\/0f\/a6\/38d0279c451e3ce45f2e1b8af78a-200x200-1\/rechargeable_lithium_21700_batteries_5000mah_25a_electronics_ion_cells.jpg","attrs":{"Brand Name":"XTAR","Model Number":"21700HP 5000mAh","Certification":"CE\/RoHS\/UN38.3\/MSDS","Place of Origin":"China"}}
{"title":"800+ Cycles 21700 Lipo Battery Long Life High Reliability 21700 Lithium","imgUrl":"https:\/\/img.chinax.com\/nimg\/a9\/c0\/8498a38a67f574388f7189c67da0-200x200-1\/800_2b_cycles_21700_lipo_battery_long_life_high_reliability_21700_lithium.jpg","attrs":{"Brand Name":"XTAR","Model Number":"21700 5000mAh(C)","Certification":"CE\/RoHS\/UN38.3\/MSDS","Place of Origin":"China"}}
High Capacity 21700 Batteries for Electric Vehicles, Flashlights, and Portable Electronics
Product Overview
XTAR INR 21700-50E 5000mAh Li-ion battery, designed for high-performance flashlights, delivers 10A continuous discharge. It features all-around protection (over-charge, over-discharge, short-circuit), 500+ recharge cycles, low self-discharge, and extreme temperature resistance (-20°C~60°C). RoHS & CE certified, it's cost-effective, eco-friendly, and ensures long-lasting, safe power for demanding tasks.
Key Features
3.6V protected 21700 battery
Button top design
Constant discharging current: 10A
Cell: INR21700-50E
Low internal resistance, high energy efficiency
Impact resistant and eco-friendly
Technical Specifications
Nominal Capacity
5000mAh
Nominal Voltage
3.6V
Standard Charging Voltage
4.2V
End-of-discharge Voltage
2.5V
Continuous Discharge Current
10A
Cell
INR21700-50E
Size
φ21.5±0.3mm × 74.5±0.5mm
Protected or Not
Yes
Applications
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 output and longer runtime.
2006: Introduced industry's first 16340 and 18650 lithium-ion batteries with protection circuits.
2011: Launched WP2II charger with 0V activation & USB output.
2013: Released PANZER XP4, first charger for both lithium-ion and nickel-metal hydride batteries.
2017: Launched Over 4 Slim, market's first 4.1A*2 fast charger with internal resistance/temperature 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.
Partners
Global Certifications
ISO-9001 Certification
MSDS Certification
UN38.3 Certification
CE Certification
RoHS Certification
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 so on.
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.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Total Annual:
30000000-100000000
Employee Number:
100~150
Ecer Certification:
Verified Supplier
Shenzhen Xtar Electronics Co., Ltd., a combined enterprise located in Shenzhen, Guangdong, specializes in the R&D and manufacturing of high-quality lithium-ion batteries and smart chargers, With an in‑depth presence across various industrial application scenarios, the company provides customer... Shenzhen Xtar Electronics Co., Ltd., a combined enterprise located in Shenzhen, Guangdong, specializes in the R&D and manufacturing of high-quality lithium-ion batteries and smart chargers, With an in‑depth presence across various industrial application scenarios, the company provides customer...