402020 4mm*20mm*20mm 100mAh 3.7v for wrist watch

- Dec 11, 2016-

402020 4mm*20mm*20mm 100mAh 3.7v for wrist watch Product Details


Key Specifications/Special Features:

  • Rechargeable Li-polymer

  • Battery model: 402020, 100mah 3.7V

  • Material of case: Soft Al-film packing foil

  • Nominal capacity: 100mah

  • Nominal voltage: 3.7V

  • Max charge current: 1.0C=100ma

  • Max discharge current: 1.5 C=150ma

  • Charge method cc/cv (constant current/constant voltage)

  • Size: 4.0 x 20 x 20mm

  • Weight: About 2.2g

  • Rechargeable battery with no less than 500 times cyclelifespan

  • With circuit to protect the battery, with over-chargeprotection, over-discharge protection, over-current protection,short-circuit protection


  1) Environmental friendly
  2) High density of energy
  3) Light weight
  4) Low self-discharge
  5) Low internal resistance
  6) Long cycle life, chargeable up to 500 or 1000 times
  7) No memory effect
  8) Doesn't contain Mercury, No fire, No explosion, No leakage
  9) Very good and quick charge, capability can be charged to 90% within 10 min.
10) Thickness can be adjusted while width and height keep the same

Safety performance

Item Test name Result
1 Over charge No fire,no explosion
2 Over discharge No fire,no explosion
3 Short Circuit No fire,no explosion
4 Drop No fire,no explosion,no leakage
5 Hot oven No fire,no explosion
6 Crush No fire,no explosion
7 Needle puncture No fire,no explosion 

1. GPS, MP3, MP4, PDA, PMC, PMP, PSP, portable electrograph,camcorder, portable pc, laptop, tablet pc;
2. Lights, torch, searchlight, miner lamp, safety helmets, safety headlights;
3. Bluetooth headsets, e-books, mobile DVD, mobile TV, mobile scales, handheld computer, positioning devices,interphone, storing power.
4. Wireless meter reading, wireless ordering, wireless data transmitter, handheld scanner, mini-speaker, R/C toys, robot.

Shipping terms:
1.  Samples checking: sending by Express (DHL / UPS / FEDEX / TNT/EMS)
2.  Bulk production: sending out by cargo shipping / air freight / Express


Primary Competitive Advantages:

  • Country of Origin

  • Experienced Staff

  • Green Product

  • Guarantee/Warranty

  • Price

  • Prompt Delivery

  • Quality Approvals

  • Small Orders Accepted

Main Export Markets:

  • Asia

  • Australasia

  • Central/South America

  • Eastern Europe

  • Mid East/Africa

  • North America

  • Western Europe

Payment Details:

  • Payment Terms:Telegraphic Transfer in Advance (Advance TT, T/T)

  • Minimum Order:1000        Pieces

Delivery Details:


  • FOB Port:Hong Kong SAR

  • FOB  Range: US$ 1 per unit (Pieces)

  • Lead Time: 15        -        25        days

Contact: Doris

Tel: +86 186 6567 6364

Email: info@sinolibattery.com

Skype: dorisluo2012

Whatapp: +8618665676364

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