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Shenzhen Delong Energy Technology Co., LTD Professional Expert of rechargeable li-ion battery , Power Bank, Car Jump Starter
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3.7V Small Lithium Polymer Battery Packs 65mAh For Bluetooth Headset

Shenzhen Delong Energy Technology Co.,LTD
Shenzhen Delong Energy Technology Co.,LTD
City: Shenzhen
Province/State: Guangdong
Country/Region: China
Tel: 86-755-61186759
Contact Person:
Ms Iris

3.7V Small Lithium Polymer Battery Packs 65mAh For Bluetooth Headset

Brand Name : DELONGTOP
Model Number : PL-401221
Certification : MSDS, UN38.3
Place of Origin : Guangdong , China
MOQ : 2000
Payment Terms : T/T, Paypal
Supply Ability : 100000 pieces per week
Delivery Time : 10-15 working days for mass order
Packaging Details : standard export package
battery type : lithium ion
norminal voltage : 3.7V
size : 4.0mm*12mm*21mm
norminal capacity : 65mAh
application : bluetooth headset, camera
warranty : one year
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3.7V Small Lithium Polymer Battery Packs 65mAh For Bluetooth Headset


ModelDL-401221 65mAh
Nominal voltage3.7V
Nominal capacity65 mAh
4.0*12*21mm (with PCM)
  • High energy density
  • Safety and reliable(with PCM)
  • Long cycle life
  • no memory
  • Never explosion,stable performance,environment friendly
  • capacity and size could be customized
Operating environmentCharging, 0°C ~ 45°C ; 65±20%RH
Discharging, -20°C~60°C ; 65±20%RH
Storage environment-20°C~45°C
storage for a long time(>3 months) and the storage condition shall be:<35°C;65±20%RH;
CycleLife (80% Prime Capacity) :>500times
Charging AttentionCharging current and charging voltage should be less than specified in the Product Specification.

The charger shall be designed to comply with Specification.

Product picture:


1: working voltage 4.2 V - 3.7 V, stable charge and discharge voltage, high specific energy, small capacity attenuation, cycle life more than 500 times, 300 times circulation capacity retention rate more than 80%

2. built-in two-way protection IC circuit board, over charging protection voltage 4.20 V + / - 0.05 V, over discharge protection voltage 2.7 V + / - 0.1 V 3 maximum charging current for 1 c, the maximum discharge current for the 2 c. Recommended charging current 0.2 C to 0.5 C, 1 C discharge current

Our services:

1. One year warranty.

2. We will replace the broken parts with new parts in the next order.

3. Choose the cheapest and safest shipping company.

4. Track the order until you get the goods.

5. Welcome any feedback and advice for our products.

Extra service:

1. MOQ: Sample order is available.

2. OEM : The larger the quantity the cheapper the price.

3. ODM: 5000pcs, keep your design privately, and won't supply it to others.

4. Provide designed package depends on your needs.

Why does DELONGTOP Brand power bank are reliable?

1) DELONGTOP is A power bank brand in china ,we cherish the brand image more than anything else ,Delong Company will never use any fake information to mislead and attract the client . we protect our brand like protecting our new born baby .

2) Delong company can controlling the quality from the first process ( Cell manufacturing ) to the end process ( Battery pack ),we will discard any defect cell once it has been inspected out to avoid any quality problem risk with our finished product ,we also can trace back by reviewing the production records from the beiginning process to the end process .

3) we established a mature after-sales service system which can protect the final consumer interests perfectly. our after sales team will respond any quality claims agains on DeLong brand power bank within 24 hours

Product Tags:

Lithium Polymer Batteries


Portable Lithium Battery

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