High-Performance 7.6V 3500mAh Lithium Battery for Handset Devices

• Customization: Available
• Type: Li-ion Battery
• Cathode Material: LFP
• Model NO.: JX-7.6V3500mAH
• Rechargeable: Yes
• Size: Small
• Nominal Capacity: 3550mAh
• Normal Voltage: 7600mv
• Charging Cut-off Voltage: 8700mv
• Discharging Cut-FF Voltage: 8700mv
• Recommended Charging Current: 700mA (0.2c)
• Recommended Discharging Current: 700mA (0.2c)
• Charging Cut-off Condition: ≤0.03c
• Operation Temperature (Charging): 0~50ºC
• Operation Temperature (Discharging): -20~60ºC
• Storage Temperature: 10~35ºC
• Storage Humidity: <75%Rh
• Internal Resistance: Less Than 150 MΩ
• Transport Package: Explosion-Proof Carton and Pallet Packing
• Specification: 120.5x61.37x18.4 (LxHxW)
• Trademark: JIAXIN
• Origin: Fuzhou
• HS Code: 8507600090
• Production Capacity: 4800000PCS/Year

Product Description

Introducing our High-Performance 7.6V 3500mAh Lithium Battery, purpose-built for handheld devices

Our consumer products are driven by the need for compact, rechargeable battery solutions, facilitating ease of use and meeting substantial market demands. These batteries are defined by their affordability, versatility, and rapid adaptability to consumer needs.

Specification

Comprehensive Battery Safety Protection

Portable lithium battery solution for electric vehicles, offering reliability and performance.

Technical Parameters

No	Item	Nominal parameter	Instruction
1	Nominal capacity	3550mAh	At operation temp 25±2℃, using 8.70V/0.2C charging and 0.2C discharging
	Min capacity	3500mAh	At operation temp 25±2℃, using 8.70V/0.2C charging and 0.2C discharging
2	Nominal Voltage	7600mV
3	Charging cut-off voltage	8700mV	Constant voltage charging
4	Discharging cut-off voltage	8700mV	Stop discharging when the voltage of single cell below 3.0 V
5	Recommend charging current	700mA (0.2C)	Max charging current 0.5C
6	Recommended discharging current	700mA (0.2C)	Max discharging current 1.0C
7	Charging cut-off current	≤0.03C	Delay 1 minute to cut-off
8	Operation temp	Charge 0~45℃	Humi 45%~85% Using ≤0.1C discharging with below 10℃ operation temp
		Discharge-40~60
9	Storage temp	Recommend-5℃~30℃	During storage, the battery must undergo a charge-discharge cycle every three months and be charged to 50%-70% of its capacity
10	Internal resistance	Less than 150 mΩ
11	Open-circuit voltage	About 7.6V	At 25±2℃ working temp, drained completely, 0.5C fast charge to 1hrs and measurement
12	Cycle life	≥75% after 300 cycle times	At 25±2℃ operation temp, 300 times charging and discharging cycle Charging voltage/current: 8.7V/0.2C, cut-off current ≤105mA Discharging current: 0.2C (cut-off voltage 6.0V) Cycle interval time: 20minutes
13	Energy retention capacity	≥80%	At 25±2℃ operation temp, placement 28 days then discharge to calculate
14	Deep discharge	=initial capacity	After standard charging, at 25±2℃ operation temp With a 10-ohm resistor for 24 hours to discharge ,then use 0.2C charge to 8.7V, cut-off current≤105
15	Cycle temp	≥80%good appearance	Undergo 5 times cycle testing and confirm standard discharging time, then check the appearance is good after standard charging. Cycle temp: humi less than 85%RH, 55℃ (2 hrs)—20℃ (4 hrs)- -10℃ (2hrs)*5 times
16	Dimensions	120.5x61.37x18.4mm

Applications

OEM&ODM

Certifications

Company Profile

Fuzhou Jiaxin Energy Industry Co., Ltd.

Established in 2013, spanning 19,980 square meters, we are a High and New Technology Enterprise boasting over 30 patents in power and battery innovation. We specialize in the R&D, manufacturing, and sale of lithium batteries, power stations, and lead-acid batteries, including motorcycle batteries. Our products empower a diverse range of applications and are proudly exported to over 90 countries worldwide.

Embracing the ethos of 'Energy-efficient, Environment-friendly, Pragmatic, Creativity,' our company prioritizes customer satisfaction, employee welfare, and technological advancement. We unite industry experts, seasoned inspection technicians, and adept management, leveraging cutting-edge technology and processes to craft eco-friendly, energy-saving new energy batteries. We are committed to relentless scientific research and innovation, providing comprehensive battery solutions across varied products and applications.

Packing & Delivery

FAQ

Q1. How do we maintain rigorous control over battery safety and quality?

Safety Testing Protocols are critical to our battery quality assurance, involving rigorous tests under extreme conditions including overcharging, overdischarging, short circuit, needle puncture, and high temperatures (up to 85ºC storage).
Capacity Verification Test: Through charge and discharge cycles, we ensure actual capacity aligns with nominal values, guaranteeing reliability.
Cycle Life Evaluation: Retains ≥ 80% capacity even after 2000 cycles, ensuring long-term durability.
Certified by CE, UL, RoHS, TUV, MSDS, UN38.3, based on the ISO9001 management framework.

Q2. How do we ensure optimal performance of battery groups?
Initial Consistency Screening is conducted to maintain uniformity before grouping batteries.
We eliminate cells with notable discrepancies in voltage, internal resistance, and capacity, ensuring pairing within ±1% using capacitive devices for precision.
Employing Dynamic Voltage Adjustment (DVA) for precise matching of individual cells within battery packs.

Ensuring our batteries reach over 90 countries, affirming global reliability.

Q3: How can we extend battery life through strategic measures and maintenance?

Q4: What are your strengths, export experience, and domestic and international use cases?

1. Enhance charge and discharge management
-Protect your battery by avoiding deep discharges. For instance, it's recommended to maintain lithium-ion battery levels between 20% and 80% to ensure optimal performance.
-Utilize an advanced intelligent BMS (Battery Management System) to precisely regulate the charging cutoff voltage, keeping ternary lithium batteries at or below 4.2V per single cell.
-Safeguard your battery's health by avoiding charging under extreme temperatures. Refrain from charging at temperatures exceeding 45ºC or below 0ºC.
2. Temperature management
-Incorporate an efficient heat dissipation system, such as air or liquid cooling, to maintain the battery's operating temperature between a safe range of 15 to 35ºC.
-Prevent overheating by avoiding prolonged high-rate discharges, for example, discharges greater than 1C.
3. Regular battery maintenance and monitoring
-Ensure balanced charging by having your BMS regularly calibrate any differences in individual cell voltages through passive or active balancing.
-For long-term storage, it's advisable to keep the battery charged at 50% and recharge every three months to maintain peak condition.
-Monitor the battery for signs of aging. Consider replacing it when capacity degrades by more than 20% or when the internal resistance increases by over 30%.

Our company proudly holds a high-tech enterprise certificate granted by the government, along with special governmental support. Notably, we successfully secured the invitation and bid for the innovative solar energy storage project at the bus station.
Our dedicated technology department has designed and manufactured batteries for products of the world's top 500 enterprises, maintaining an impeccable safety record with over a decade of use without any fire or explosion incidents. Since our inception, we have expanded our global footprint, exporting to over 90 countries worldwide.