• Shenzhen BAK Technology Co., Ltd.
    Kallista
    I'm going to keep this sweet & short! I have never experienced such excellent customer service with a out of country supplier. This company has gone far and beyond to meet the needs of their customers. Their response time with all my concerns were addressed immediately 100%within 1-24 hours and the shipping time was EXCELLENT!
Contact Person : Dong
Phone Number : +86 13828713564
Whatsapp : +8613828713564

BAKTH-LP-102128, 3.7V, 430mAh, 1.59Wh

Place of Origin China
Brand Name BAKTH
Certification UN38.3
Model Number BAKTH-102128P
Minimum Order Quantity 2PCS
Price US$1.85
Packaging Details Carton
Delivery Time 15~20days
Payment Terms T/T
Supply Ability 100000PCS/Month
Product Details
Voltage 3.7V Discharging Temp -20℃~45℃
Charge Current 0.5C Chemistry Li-pol
Chargeable Yes Working Temperature 0℃ ~45℃
Capacity 430mAh
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3.7V Li Polymer battery pack

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430mAh rechargeable battery

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1.59Wh lithium polymer battery

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Product Description
Product Overview:
The ‌BAKTH-LP-102128‌ is a compact ‌3.7V 430mAh (1.59Wh)‌ rechargeable lithium-ion battery, commonly used in ultra-lightweight and space-constrained electronic devices. With a ‌single-cell (1S)‌ configuration, it delivers a nominal voltage typical of small consumer electronics, making it ideal for low-power applications where size and weight are critical.

Description:
Weight 10 g
Dimensions 10 × 22 × 31 mm
Type Li-Po
Power   Capability 430 mAh
Power   Capacity 1Wh
Voltage 3.7V
Max.   charging voltage 4.2V
Cut-off   voltage 2.8V
Cycles   Life 300+

 

Physical and Application Profile

This battery is typically housed in a ‌prismatic or pouch cell‌ design, emphasizing ‌minimal thickness and light weight‌—often under ‌20g‌. It is widely integrated into:

  • Wearable devices‌: smartwatches, fitness trackers, hearables
  • Miniature drones and toy-grade RC models
  • Bluetooth accessories‌: earbuds, remotes, mini speakers
  • IoT sensors and medical wearables‌: temperature monitors, patch devices

Its compact form factor requires precise fitment, so users must verify ‌physical dimensions, connector type (e.g., JST-PH 2.0mm), and polarity‌ before replacement or integration.

Charging and Safety Considerations

To ensure safety and longevity:

  • Use a ‌constant current/constant voltage (CC/CV) charger‌ set to ‌3.7V (4.2V full charge)
  • Charge at ‌0.5C–1C rate (215mA–430mA)‌ to avoid overheating
  • Store at ‌3.7–3.8V (partial charge)‌ in a cool, dry environment
  • Avoid over-discharge below ‌3.0V‌ to prevent cell damage

The battery may include ‌built-in protection circuits‌ against overcharge and short circuits, but external PCM integration is recommended in custom applications.