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Wireless Keyboard Lithium Polymer Battery Power Bank Smallest 581730 3.7V 250mah

Wireless Keyboard Lithium Polymer Battery Power Bank Smallest 581730 3.7V 250mah

Brand Name:SER or OEM
Certification:CE ROSH
Model Number:581730
Minimum Order Quantity:3000PCS
Delivery Time:20 work days
Place of Origin:CHINA
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Verified Supplier
Location: Guangzhou Guangdong China
Address: F6, Dezhi Creative zone A area,Dashi town,panyu district,Guangzhou city,Guangdong province
Supplier`s last login times: within 20 hours
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Product Details

Smallest 581730 3.7V 250mah lipo battery for wireless keyboard

Technical specifications:

Battery TechnologyLithium Polymer Battery / Lipo battery
Nominal Voltage3.7V
Nominal Capacity250mAh (at +20°C @0.2C discharge)
Discharge Cut off Voltage2.7V
Charge Cut off Voltage4.2V
Standard charge Current0.2C
Rapid Charge Current1C
Standard Discharge Current0.2C
Max Discharge Current1C
Operating temperature Charging0℃ ~ 55℃
Operating temperature Discharging-20℃ ~ 65℃
Storage conditionTemperature ≤ 30℃ Humidity ≤ 75%RH


1. Totally safe, build with PCM/PCB, None fire,no explosion, be able to bear cruel tests without any protection such as short circuit, puncturing, etc.
2. Totally thin.Thin thickness. 0.4mm to 8mm.Dimensions can be customized according to different demands, short product development period, meeting customers’ varieties of personalized needs.
3. Low self-discharge less than 3% per month at room temperature
4. Light weight and small size.The specific energy density of each battery is 356Wh/kg, more than 50% higher than steel shell lithium battery under the condition of the same weight
5. Wide Operating Temperature Range, the battery with a strong adaptability to temperature can be in work between -20℃ ~ +60℃
6. Without voltage passivation, no activation necessary after long time storage;no memory effect.


The battery have wide applications:

Portable DVDs, laptop computers, mobile phones, blue-tooth devices, MP3/MP4 players, PDA's, R/C planes, power-driven tools & toys, battery-operated bicycles/cars have already adopted LIPO-'s polymer technology.
Main applications are:
Communications equipment: mobile phone, PHS phone, Bluetooth cell phones, walkie-talkie
Information equipment: laptop computers, PDA, portable fax machines, printers
Audio-visual equipment: digital cameras, camcorders, portable DVD, VCD
Others: electric bicycles, miner's lamp.

Packaging & Shipping


Tray bulk, Blister card, PVC shrink, Gift-Box, Nude packing, OEM packing, etc.


Leadtime is 3-20 working days for normal orders.


Smallest 581730 3.7V 250mah lipo battery for wireless keyboard

We can add the PCM/PCB, wire and connector on the battery according to requirement

Why Choose us?

Company Advantages:

We have been continously developing new products to meet requirements of different customers and applications since 1980. what's more, performance of batteries such as safety, energy density, temperature characteristics, discharge platform, resistance, cycle life is always improving.
Pursuing a business concept of “Quality First”, our assembly lines are certified by the Chinese military and ISO9001 quality system. We also have a fully equipped environment and reliability testing center to assure our products meeting military specifications.

High quality batteries:

Our batteries are in enough capacity, and lower in RI. Before shipment, we will 100% inspect and ensure battery quality well approved by our clients.

Better service:
Professional and experienced engineers can provide satisfied perfect solutions to customers. New designs can lead to actual products within 15days.A professional,dedicated and well known technical& marketing team with the ability to identify,support and serve our customers with diamante service.

We always offer customers with highest quality, reasonable price and intimate after-service to support them on marketing developing. It is our wish to obtain muti-benefit with global users through OEM and ODM business.

Our Certifications:

Our Workshop

Look at those pictures. To make sure the producing environment is total dry, we introduced foreign technology and machine. This drying system comes from Denmark; it can generate 54500CBM dry air per hour.

It owns modern produce equipment and rater complete necessary facilities.

Meanwhile we have many automatic machines; this is our automatic voltage test machine. Those modern production equipments laid a solid foundation for producing high-quality products.

We participate in a variety of trade fairs every year.On Electronics Show we discuss with customers about our products and help them solve questions face to face.We have established contacts with many potential buyers from other places as America,Australia, Belgium, Israel,Germany,the Netherlands, Canada etc.

China Wireless Keyboard Lithium Polymer Battery Power Bank Smallest 581730 3.7V 250mah supplier

Wireless Keyboard Lithium Polymer Battery Power Bank Smallest 581730 3.7V 250mah

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