• 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

Smallest Li Polymer Battery Pack 3.7V 155Mah Li Polymer Battery With Wires

Place of Origin Guangdong, China
Brand Name BAKTH / Neutral / OEM
Certification UL
Model Number LP-402025-1S-3
Minimum Order Quantity 100 pieces
Price CN¥16.95/pieces 100-999 pieces
Packaging Details meet IATA
Supply Ability 300000 Piece/Pieces per Month

Contact me for free samples and coupons.

Whatsapp:0086 18588475571

wechat: 0086 18588475571

Skype: sales10@aixton.com

If you have any concern, we provide 24-hour online help.

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Product Details
Application Toys, Power Tools, Home Appliances, Consumer Electronics, BOATS, Golf Carts, SUBMARINES, Electric Bicycles/Scooters, Electric Folklifts, Electric Wheelchairs, Electric Power Systems, Solar Energy Storage Systems, Uninterruptible Power Supplies, Electric Fo Weight 9g
Type Li-Ion Size About 4.3*20.5*26(mm)
Max Charge Voltage 4.2V Discharge Cut Off Voltage 2.75V
Standard Charge Current 0.2C Max Charge Current 1C
Charging Mode CC/CV Charging Temperature 0~45℃
Discharging Temperature -20 ~ 60℃ Applied Field Electrical Appliances
Warranty 3months-1year Anode Material LCO
Chargeable Yes Storage Type Indoor Preservation
The Charging Ratio 0.5C The Discharge Rate 1C
Port Shenzhen/Hongkong
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Smallest Li Polymer Battery Pack

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155Mah replacement li ion battery

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Smallest Li Polymer Battery Pack

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Product Description
Smallest Li Polymer Battery Pack 3.7V 155Mah Li Polymer Battery With Wires
Product Specifications
Application Toys, Power Tools, Home Appliances, Consumer Electronics, Electric Vehicles, Energy Storage Systems
Weight 9g
Type Li-Ion
Size 4.3 × 20.5 × 26mm
Max charge voltage 4.2V
Discharge cut off voltage 2.75V
Standard charge current 0.2C
Max charge current 1C
Charging mode CC/CV
Charging Temperature 0~45℃
Discharging Temperature -20 ~ 60℃
Warranty 3 months - 1 year
Smallest Li Polymer Battery Pack 3.7V 155Mah Li Polymer Battery With Wires 0
Technical Details
Nominal capacity 155mAh Discharging Temperature -20 ~ 60℃
Nominal voltage 3.7V Storage temperature ≤1 month: 45~60℃
≤3 months: 25~45℃
≤12 months: -20~25℃
Max charge voltage 4.2V Humidity Range 0~85% (non-condensing)
Discharge cut off voltage 2.75V Dimension 4.3 × 20.5 × 26mm
Cycle life 300 cycles (≥80%) Brand BAKTH / Neutral / OEM
The battery pack can be customized according to customer requirements. Please contact our customer service for details.
Smallest Li Polymer Battery Pack 3.7V 155Mah Li Polymer Battery With Wires 1
Our Customization Services
  • Custom battery voltage, capacity size and case
  • Custom connect plugs, sockets, cables, and waterproofing
  • Special battery packs for any applications
  • Custom BMS with specific charging/discharging current, balance function, and communication protocol
Product Advantages
  • High energy density with potential for higher capacities
  • No prolonged priming needed - ready to use after first charge
  • Low self-discharge (less than half of nickel-based batteries)
  • Low maintenance - no periodic discharge needed, no memory effect
  • Specialty cells available for high-current applications
Safety Features

Our batteries have passed rigorous safety tests including drop shock, impact, squeeze, soak, bonfire, over-charge, and over-discharge tests. They feature stable chemical structure with no leakage, venting, disassembly, rupture or fire.

Product Images
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Why Choose BAK Technology
  • 20 years of battery pack design and production experience
  • Factory direct sales with high-quality packaging and PCB/BMS
  • ISO 9001 and ISO 14001 certified quality standards
  • OEM & ODM services recognized by Fortune 500 companies
  • Excellent technical and after-sales service
Frequently Asked Questions
Why choose us?

Using qualified battery cells with full-function PCB/BMS and strict QC procedures are essential for safe battery operation - these are our fundamental requirements in battery design and production.

Which products are your best sellers?

Customized batteries, 18650/21700/26650/32700 cells, LiFePO4 3.2V-100Ah/150Ah/200Ah/277Ah, 12.8V100Ah/120Ah/12Ah/6Ah packs.

What is your warranty policy?

Standard warranty is 12 months (negotiable for special products). We always provide pre-production samples and conduct final inspection before shipment.

Do you have minimum order quantity?

No minimum quantity - we welcome sample orders to test quality before bulk purchases. Larger quantities receive better pricing.

Can you print my logo or make custom batteries?

Yes, our professional R&D team can provide customized solutions according to your requirements.

Contact us for current pricing, packaging options, shipping details, and discounts. Custom battery packs and branding services are available!