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3.7V lithium polymer battery 042030 402030 180mah MP3 MP4 MP5

60 % of buyers enjoyed this product!
In stock
Price: US $3.40 Sale Price: US $2.79
45 days Money back
45 days Money back Returns accepted if product not as described, buyer pays return shipping; or keep the product & agree refund with seller.
On-time Delivery
On-time Delivery
Guarantees: On-time Delivery 60 days


Hello, we are all batteries have a custom size,

if you need to customize the size of your battery,

contact us, we can customize according to your requirements.thank you

Pro,please read before making:

1 ,Our non-power lithium polymer battery,Please purchase power battery for model aircraft ,cars like toys that buyers do not shoot Oh !

2 ,Default courier rhyme, tact , Shen Tong . ( Need to send other courier , please note in the remark face , Want a message afraid sometimes neglect. ) Day17:30Paid before the day of delivery ( holidays,Custom , bulk -free except for the spot ) .

3Because the batteries are special items , for the aviation prohibited articles can only go dedicated land, so the speed will be slower , please take baby parents who understand ! We provide a commodity , not a logistics services, for delivery time can not make any promises. So we do not take urgent , for the delay in the arrival time and not understanding buyers do not shop in the shop , thank you !

4 ,We guarantee all the batteries for the new batteries, polymer lithium batteries more likely to have scratches on the appearance of demanding customers, please carefully shot Oh .

5Product appearance is affected by many factors , different production cycles , each consisting of a battery does not look like there might be a neutral picture indicates that this model, pictures for reference only, to prevail in kind .

=Product Information=

Product Type:042030402030

Nominal capacity : 180MAH

Dimensions : Thickness 4MM(0.2MM) W 20MM(0.5MM)*Length 31MM(0.5MM)

Rated voltage:3 .7V

Charging voltage:4.2V

Charging temperature:0 C ~ 45 C

Discharge temperature:-20 C ~ +60 C

Storage temperature :-20 C ~ +35 C

Charging current: Standard charge:0.5C, Quick charge :1 .0C
Standard charging method :0.5C CC( Constant current ) charge to4.25V, ThenCV( Constant4.2V) Charge till charge current 0.05C
Maximum charge current:1C
Maximum discharge current:1C

ProtectionICParameter: Overcharge protection voltage4.20V 0.05V, Over- discharge protection voltage2 .7V 0.1V,Xu maximum charge current2A.

Batteries are spot with two leads. Need to replace the three lines, terminal head ( head size required to provide terminals , pictures ) , subject to 10% processing fee , before making contact with the customer .

3.7V,7.2V,12VLithium polymer battery that can be customized series.In parallel,Many specifications, not exhaustive, welcomed the inquiry

Battery Specification shopping guide:

Lithium polymer battery is the size of the model , for example: model is042030Or402030Which represents the thickness of the battery4mm, Cell width20mmBattery length30mm. When parents who buy batteries , battery Coding according to the original model to select the size , battery -free Coding section , the amount of cell thickness , width and length to choose a new battery with Oh .

Should Use:

Mobile power , car navigation ,MP3, MP4, MP5, Card speakers, wireless mouse, millet phone displayPSP built-in battery power peripherals , tablets , mobileDVD, Laptop battery , wireless monitoring devices, Medical equipment, Various instruments ,LEDLighting, traffic signs , portable small appliances, variousDIYInstrumentation,Metal detectors, and other digital type battery field .

The main features:

1.Various sizes : Type and capacity options,Applicability

2.Quality Assurance: UseAProduct batteries,High Capacity,Low internal resistance

3.Stable performance: Long cycle life:Continuous charge and discharge500After time , the battery capacity is not less than the rated capacity80% .

4.No memory effect: any time to charge and discharge

5.Safe: Built-in circuit protection board,A short circuit , overcharge , over discharge, under shock, vibration, acupuncture , heat, and other states no fire, no explosion and so on.


Battery Handling Precautions: prohibit the use of a sharp object to touch the foil packaging materials, not bend the top edge, not open or destroy the hems , pole bending ears fragile ban prohibiting fallImpactBend the battery at any time prohibit the use of short-circuit or reverse polarity battery .

Warranty Description:

1Please note that the verification of battery size , the baby photographed is not consistent with the size you need, such as the need to be returned due to buying the wrong size replacement , the buyer pays for return postage .
2, Battery pack and charger standard provides six months warranty, disassemble the battery pack , the warranty is not within the normal capacity fading .
3AllDIYProduct does not provide any warranty.
4Warranty period from the time the goods are delivered the buyer ( ie, from the date of receipt ) .
5Warranty expenses : Product in7Quality problems occur within my shop is responsible for the return postage ;7Postage month period of days to half ( buyers return postage buyer , the seller re- shipped postage borne by the seller , but still more than a month of back and forth during the warranty postage borne by the buyer , OUR commitment repairs the associated costs.

Average Star Rating:
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Name Rating Feedback
Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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Price:  US $3.40 / piece
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