Li Polymer Battery for Smart Strap

Li Polymer Battery for Smart Strap

When speaking through the embedded microphone, place your fingertips on your ears. It is a smart strap with a built-in 225mAh li polymer battery of 3.7V, allowing you to answer calls at your fingertips.

Whether you are wearing a classic watch or an Apple Watch, Samsung Gear, or Pebble Time, you can replace the existing strap with it. However, because the LPC401740 li polymer battery is embedded in the belt, it cannot be returned. No one has ever lost a headset in their lifetime.

Using this intelligent wristband equipped with a li polymer battery, you can put your phone alone in your pocket, and you can answer the phone by just raising your hand without having to carry any additional earphones or earphones. When you put your fingers on your ears, your fingers can transmit sound and block background noise. Therefore, you can hear unmistakable sounds in noisy places without worrying about other people listening.

Fingertip communication method of smart strap

When speaking through the microphone embedded in the intelligent wristband with its own li polymer battery 3.7V, you only need to put your fingertips on your ears to hear the caller's voice.

The operation mode of the intelligent wristband equipped with a 3.7V li polymer battery The intelligent wristband receives voice signals from your mobile phone via Bluetooth. After receiving the voice signal, it will generate vibration through its body conduction unit, and the vibration will be transmitted to your fingertips through your hand.

Since the transmission is carried out by throbbing, it will not cause harm to the human body. When you place your fingertips on your ears, the vibrations will echo to produce amplified sounds in the enclosed space of the ears. Smart strap sound quality test with low-capacity 225mAh li polymer battery.

The blue image represents the original sound signal input, and the magenta image represents the sound signal when received through the fingertips. In voice transmission, the voice frequency range is about 2000 Hz. Within this range, the sound signal passing through the fingertip has little change from the original input sound signal.

Li Polymer Battery LPC401730 3.7V 225mAh Details

Battery Type

LI POLYMER BATTERY

Part Number

LPC401730

Voltage @ Capacity

3.7V @ 225mAh 0.814Wh

Comfiguration

1S1P

Wires

UL1571 AWG28 50m*2

Connector

-

Cut-off Voltage

2.75V

Thermistor (NTC)

-

Dimension

8.0 x 38 x 48mm

Charge Temperature

0°C to +45°C

Discharge Temperature

-20°C to +60°C

Storage Temperature

-20°C to +45°C

Li Polymer Batteries

model capacity
(mAh) thickness
(mm) Inner radius
(mm) external radius (mm) voltage (v)

LPCV311331 90 3.1 81.8 84.9 3.7

LPCV381447 235 3.8 30.8 34.6 3.8

LPCV250830 40 2.5 52.0 54.8 3.7

LPCV280848 80 2.8 16.6 19.4 3.7

LPCV400942 125 4.0 74 78 3.7

LPCV382438 400 3.8 25 28.8 3.7

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The other lipo battery applications

Battery Type	*LI POLYMER BATTERY*
Part Number	LPC401730
Voltage @ Capacity	3.7V @ 225mAh 0.814Wh
Comfiguration	1S1P
Wires	UL1571 AWG28 50m*2
Connector	-
Cut-off Voltage	2.75V
Thermistor (NTC)	-
Dimension	8.0 x 38 x 48mm
Charge Temperature	0°C to +45°C
Discharge Temperature	-20°C to +60°C
Storage Temperature	-20°C to +45°C

model	capacity (mAh)	thickness (mm)	Inner radius (mm)	external radius (mm)	voltage (v)
LPCV311331	90	3.1	81.8	84.9	3.7
LPCV381447	235	3.8	30.8	34.6	3.8
LPCV250830	40	2.5	52.0	54.8	3.7
LPCV280848	80	2.8	16.6	19.4	3.7
LPCV400942	125	4.0	74	78	3.7
LPCV382438	400	3.8	25	28.8	3.7