Protected 21700 Flashlight 5000mA Battery Power System Lithium Ion Battery Pack

• Customization: Available
• Type: Li-ion Battery
• Cathode Material: LFP
• Model NO.: EV2170-K1
• Rechargeable: Yes
• Size: L)75.60mm*(D)21.60mm Max.
• Nominal Voltage: 3.6V
• Nominal Capacity: 5000mAh
• Origion: Guangdong
• Conponent: Li Ion
• Electric Energy: 18
• Certification: CE/Un38.3/MSDS
• Weight: 75g(Max)
• Transport Package: Bulk Packing
• Specification: EV2170-K1
• Trademark: EVVA or OEM
• Origin: China
• Production Capacity: 50000pieces/Year

Product Description

Specification

Product Description

Features

1.Genuine Grade A lithium battery cells 
2.Light weight and real capacity
3.Small internal resistance
4.High energy density, low self-discharge
5.Pollution free, long cycle life
6.No memory effect
7.Existing stock for short delivery time.
8.OEM orders are available (battery pack, battery with spot welding etc.
9.UN38.3, IEC62133, CE, ROHS approved
10.Applicable to Laptop, Power Bank, light vehicle, drones, ESS(Energy Storage System), UPS(Uninterruptible Power Supply), Lighting and other electronic devices

EV2170-K1
Items	Specifications
Nominal Voltage	3.6V
Nominal capacity	5000Ah
Battery type	Li-ion
Application	Toys, Home Appliances, Consumer Electronics, Flashlight, Torch
Cycle Life at 0.5C/0.5C, 100% DOD	>1000cycles
Protection Built in	with over-charge, over-discharge and short circuit protection
The charging ratio	4A(max)
The discharge rate	15A(max)
Max. Constant Discharge	15A
PCB Protection Trip Current	20A
Discharge cut-off voltage	2.5A
Cell Weight	75g max.
Cell Dimension	L)75.60mm*(D)21.60mm max.
Temperature	--20℃-60℃

Details Display

Certifications

Packaging & Shipping

Company Profile

FAQ

Q1: Are your battery quality approved?‌

‌A:‌ Yes, we guarantee all cells are 100% original from Lithiumwerks, Molicel, Panasonic, Samsung, LG, and Murata. Before assembling into battery packs, each cell undergoes comprehensive inspection and grouping. All finished battery packs are fully inspected before shipment46.

‌Q2: How can you prove the cells you use are 100% original?‌

‌A:‌ We can provide original packaging lists, factory inspection reports, and other relevant documents issued by these manufacturers34.

‌Q3: Are you a factory? What services do you provide?‌

‌A:‌ Yes, we operate our own factory with a team experienced in lithium batteries for over 15 years. We offer OEM and ODM services for battery packs, with quality strictly controlled under ISO 9001:2015 standards56.

‌Q4: What certifications do you hold?‌

‌A:‌We hold ISO 9001:2015 for quality management systems. Our batteries are certified with CE, RoHS, CB, UN38.3, and MSDS. For OEM battery packs, we assist clients in obtaining necessary certifications45.

‌Q5: What is your lead time if I place an order?‌

‌A:‌ For stock products, delivery is within 2 business days after payment confirmation. Custom battery packs require approximately 10–15 days for production58.

‌Q6: What payment methods do you accept?‌

‌A:‌ We accept T/T (Telegraphic Transfer), Trade Assurance, and PayPal8.

‌Q7: What is your warranty policy?‌

‌A:‌ We guarantee pre-shipment quality. From the delivery date, we offer a 30-day free refund, 4-month free replacement, and lifetime repair service. Damage due to improper use is not covered.

Why choose us?

1‌.Inquiries about our products will receive responses within 24 hours.‌

‌2.We protect your sales regions, design concepts, and all private information.‌

‌3.Provide you with state-of-the-art products at competitive prices.‌

4‌.All cells we use are 100% original A-grade from Samsung, Panasonic/Sanyo, LG Chem, Murata/Sony, Lithiumwerks, and Molicel, ensuring guaranteed quality.‌

5‌.All PCM/BMS systems are independently designed by professional electronic engineers with over 20 years of expertise in the field.‌

‌6.As a factory, we guarantee the fastest delivery of the most favorable products to you.‌

7‌.A professional sales team stands ready to address all your questions through coordination with engineers.‌

‌8.Our team has 16 years of expertise and specialized skills in lithium-ion battery pack manufacturing.‌

‌9.Advanced machinery for cell sorting, automated pack welding, heat shrink packaging, and comprehensive testing (including aging tests, voltage tests, internal resistance tests, and drop tests).‌

‌10.Certified with ISO 9001:2015, CE, UN38.3, RoHS, and UL approvals.