Home / Products / Lithium Polymer Battery / HB 291320 3.7V 45mAh Ultra-Small Polymer battery

HB 291320 3.7V 45mAh Ultra-Small Polymer battery

291320 3.7V 45mAh
291320 3.7V 45mAh
291320 3.7V 45mAh
291320 3.7V 45mAh
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Overview&Features

Lithium polymer battery, or more correctly lithium-ion polymer battery is a rechargeable battery of lithium-ion technology using a polymer electrolyte instead of a liquid electrolyte. High conductivity semisolid (gel) polymers form this electrolyte. These batteries provide higher specific energy than other lithium battery types and are used in applications where weight is a critical feature, such as mobile devices, radio-controlled aircraft and some electric vehicles.
LiPo cells provide manufacturers with compelling advantages. They can easily produce batteries of almost any desired shape. For example, the space and weight requirements of mobile devices and notebook computers can be met. They also have a low self-discharge rate, which is about 5% per month.

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Hoppt product’s safety performance is comfirmed to

  • UL1642 standard.No leakage, capacity Recovery rate:³ 90% (storage 3h)
  • No explode, no fire, no  leakage.
  • Avoid insolation or dropping into fire.
  • Avoid shorting the battery.
  • Avoid excessive physical shock or vibration.
  • Don’t disassemble or deform the battery.
  • Don’t immerse in water.
  • Don’t use the battery mixed with other model or manufacturer batteries.
  • Battery charge should be used appropriate charger.

Specification

Electrical parameters

Nominal capacity 45mAh
Min. Capacity 45mAh
Cell Initial Impedance ≤ 150mΩ
Cycle life >300 (at 0.5C discharge)
Normal Voltage 3.8V
Initial Voltage ≥4.0V

Dimensions

Battery pack Thickness max. 3.4mm
Battery pack Width max. 15mm
Battery pack Height max. 22mm
Pack Impedance ≤200mΩ
Cell type Lithium polymer battery

Use environment

Discharge Temperature 0~ 60℃
Charge Temperature 5~ 50℃
Limited Charge Voltage 4.35 V
Cut-off Voltage 2.8V
Standard Charging Method 0.2C CC current charge to 4.35V, then CV charge till current declines to

0.01C

Operating humidity Range ≤ 90%RH

Guideline

Standard Charging Current 0.2C
Standard Charging Time 6~7 hours
Rapid Charging Current 0.5C
Rapid Charging Time 约3.5hours
Standard Discharging Current 0.2C
Max. Discharging Current 1C

Applications

  • Smart Watch
  • Portable device
  • Wearable device
  • Digital products
  • Consumer electronics

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