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Aims to be a premier solution provider for high quality, efficient, safe, environmental power
2 Years
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| Brand Name : | RESKY |
| Model Number : | LP4025180 |
| Certification : | CE, RoHS, MSDS, Un38.3,IEC62133,ect |
| Price : | Negotiable |
| Payment Terms : | T/T,Western Union |
| Supply Ability : | 50000pcs/day |
| Delivery Time : | 7-10days |
| MOQ : | 100PCS |
Lithium Ion Polymer Battery 4025180 3.7v 2200mAh 8.14wh Rechargeable Li-ion Battery Cell
| NO. | Items | Specifications |
|---|---|---|
| 1 | Batteries | 3.7v 2200mah lipo battery |
| 2 | Charge voltage | 4.2V |
| 3 | Nominal voltage | 3.7V |
| 4 | Nominal capacity | 2200mAh 0.2C Discharge |
| 5 | Charge current | Standard Charging:0.5C Rapid charge: 1.0C |
| 6 | Standard Charging method | 0.5C CC(constant current)charge to 4.2V, then CV(constant voltage 4.2V)charge till charge current decline to ≤0.05C |
| 7 | Charging time | Standard Charging:2.75hours(Ref.) Rapid charge: 2hours(Ref.) |
| 8 | Max.charge current | 1.0C |
| 9 | Max.discharge current | 1.0C |
| 10 | Discharge cut-off voltage | 2.5V±0.25V(0.2C) |
| 11 | Operating temperature | Charging: 0°C ~45°C Discharging:0°C ~45°C |
| 12 | Storage temperature | -10°C~ +45°C |
| 13 | Dimension | Length: 180±2mm (not including tabs) Width: 25±0.5mm Thickness:4±0.2mm |
| 14 | Drop Test | The cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage |
| 15 | Cycle time | ≥500times |
Advantages:
1. Size and Form Factor Advantages: Ultra-thin Design, Fits into Compact Spaces
The model number "4025180" represents the lithium battery's
thickness (4.0mm) x width (25mm) x length (180mm), making it a
typical "ultra-thin, long strip" polymer battery.
Ultra-thin: At 4.0mm, the thickness is significantly thinner than traditional cylindrical lithium batteries (e.g., the 18650 battery has an 18mm diameter). This allows it to be embedded in thickness-sensitive devices such as laptop keyboards, smart bracelets/watch bands, and ultra-thin tablets, without taking up additional space.
Strip Form Factor: The 180mm length allows it to flexibly fit into narrow, unused areas within devices (e.g., the bezel of an e-book reader or the sides of a wireless headphone charging case), improving device space utilization and helping manufacturers achieve thinner and lighter product designs.
2. Electrochemical Performance: Compatible with Mainstream Consumer Devices
Voltage Compatibility: 3.7V is the "standard operating voltage" for
polymer lithium batteries, consistent with the motherboard power
requirements of most consumer electronics (such as mobile phones,
tablets, and Bluetooth devices). This eliminates the need for
additional voltage conversion modules, reducing device circuit
complexity.
Capacity and Energy Density Balance: 2200mAh (corresponding to
8.14Wh of energy, calculated as: 3.7V × 2.2Ah = 8.14Wh) is
considered "medium capacity." Combined with its ultra-thin size,
its energy density (energy per unit volume) surpasses that of
cylindrical or prismatic steel-cased batteries of similar
thickness, meeting the battery life requirements of devices
requiring "1-2 days of typical use" (e.g., approximately 7 days for
a smart bracelet or 8 hours of playback for a Bluetooth speaker).
Charge and Discharge Stability: Polymer lithium batteries typically
have a low internal resistance (typically <100mΩ), generate
minimal heat during charge and discharge, and support a typical
charge rate of 0.5C-1C (i.e., 1.1A-2.2A, approximately 1-2 days).
Fully charged in 12 hours), the battery life can reach 300-500
cycles (capacity decays to less than 80%), meeting the "1-2 year
use cycle" requirement for consumer devices.
3. Safety and Reliability: Reduced Risk
Structural Safety: Polymer lithium batteries are encapsulated in an
aluminum-plastic film (rather than a steel/aluminum shell) and
contain no liquid electrolyte (or only a small amount of gel
electrolyte). Even if squeezed or punctured, they are unlikely to
leak or explode; at most, they will bulge, making them far safer
than traditional liquid lithium batteries.
Environmental Adaptability: The operating temperature range is
typically -10°C to 60°C, making them suitable for everyday indoor
and outdoor environments (such as using Bluetooth devices outdoors
in summer or smartwatches in cold winter temperatures).
Low-temperature discharge performance is superior to cylindrical
batteries (capacity decay is reduced at low temperatures).
4. Design Flexibility: Customizable
The polymer lithium battery packaging can be fine-tuned to meet
device requirements (e.g., the thickness can be adjusted to 3.8mm
and the length to 175mm based on the 4025180 package). A protection
board (to prevent overcharging, over-discharging, and short
circuiting) can also be integrated, eliminating the need for
manufacturers to design additional protection circuitry and
shortening product development cycles.
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