11.1V 3s 2000mAh lithium polymer battery for portable vacuum cleaner

Product Description 11.1v 3s 2000mAH lithium polymer battery for portable vacuum cleaners NO.ItemsSpecifications1batteries 3.7v 2000mah lipo battery2Charge voltage4.2V 3Nominal voltage3.7V4Nominal capacity2000mAh     0.2C Discharge5Charge current Standard Charging:0.5CRapid charge:&nb

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Product Description
11.1v 3s 2000mAH lithium polymer battery for portable vacuum cleaners
1batteries 3.7v 2000mah lipo battery
2Charge voltage4.2V 
3Nominal voltage3.7V
4Nominal capacity2000mAh     0.2C Discharge
5Charge current
Standard Charging:0.5C
Rapid charge:     1.0C
6Standard Charging method0.5C CC(constant current)charge to 4.2V, then CV(constant voltage 4.2V)charge till charge current decline to ≤0.05C
7Charging time
Standard Charging:2.75hours(Ref.)
Rapid charge:     2hours(Ref.)
8Max.charge current1.0C
9Max.discharge current1.0C
10Discharge cut-off voltage2.5V0.25V(0.2C)
11Operating temperatureCharging:  0 °C ~45 °C
Discharging:0 °C ~45 °C
12Storage temperature-10°C~ +45 °C
13 DimensionLength:60±2mm (not including tabs)
14Drop TestThe cell is to be dropped from a height of meter twice onto concrete ground. No fire, no leakage
15cycle time≥500times

1.High Energy Density.
2. High Output Voltage.
3. Excellent Security.
4. Long Cycle Life: More than 500 repeated charge/discharge cycles.
5. Fast Charge Capacity: Can be fully charged in 2 to 3 hours with a rated voltage of 4.2 per cell
6. Environmental-friendly: No Pb, Cd added
7.Dual IC chips, that can anti-shortcircuit, anti-overcharger, anti-overcurrent, anti-overload;
8.Injection Technology to make battery more stable;
9.With short-circuit production function, safe and reliable;
10.Factory mastered technology and competitive price;
11.CE/ROSH/SGS/UL/MSDS/UN38.3/IEC61233 standard.

 11.1V 3s 2000mAh Lithium Polymer Battery for Portable Vacuum Cleaners

1. Light: headlamp, emergency light, sloar flashlight, searchlight, lanten,bicycle light, LED light, military
flashlight, high-end flashlight, high power flashlight, bright flashlight.

2.Outdoor sports products: camping light, mountain bike light, solor emergency light, self-defense flashlight,

3.Customer electronics: MPS, Tablet PC. laptop, Bluetooth earphone, power bank, portable DVD player,
speaker, microphone, sound equipment, audio, Digital camera, vidican.

4.Home appliances products: electric mop, electric vacuum cleaner, electric children toys, electric shoes,
electric blanket.

5.Medical devices

6.Instruments and meters: water meter, gas meter.

7.Electric transportation vehicles: electric bike, electric car, e-scooter, electric motor, electric trolley, electric cart.

8.Power tools: electric drill, mower

9.UPS, backup energy, storage energy.

11.1V 3s 2000mAh Lithium Polymer Battery for Portable Vacuum Cleaners

Knowledge of battery maintenance:

1. Maintenance of new batteries

The necessary visual inspection should be carried out before the new battery is installed, and it can be used directly after the inspection is free of defects. The battery is mostly half-full before leaving the factory, and the battery has been aging, and there is no need to perform special activation again. Before charging a new battery, ensure that the charger matches the battery to avoid battery damage.

2. Instructions for fast charging

For non-fast-charge series batteries, it is not recommended to use fast-charge devices to quickly charge the batteries. Fast charging will make the material transfer produced by the internal electrochemical reaction of the battery fail to keep up with the charge transfer, and the electrode material will produce large irreversible changes and lose capacity.

3. Battery storage

When the battery is not stored for a long time, the battery should be charged to 50%-70%, and the storage temperature should be below 25ºC.

4. Battery charging

When using an electric vehicle charger to charge an electric vehicle, you should first connect the charger to the electric vehicle, and then connect the charger to the power supply. If the sequence is reversed, it will easily cause a short circuit. Keep ventilated when charging, and place the charger on non-flammable objects, as the flammable parts of the vehicle.

5. Daily maintenance

During normal use, avoid overcharging and overdischarging the battery. During use, if the battery life drops rapidly, you should find professional maintenance personnel to inspect the vehicle and the battery in time, and you must not disassemble the battery for inspection. When used at low temperatures, the problem of reduced range may occur, which is a normal phenomenon. Care should be taken to avoid extending the range by increasing the charging time. When using it under high temperature in summer, it is strictly forbidden to expose the battery to the sun, charge it, and charge it directly without heat dissipation after use.

Shipping and Payment:

1. Shipping by UPS/FEDEX/DHL, by air, by sea and other special line for lithium batteries;

2. Accept T/T, PAYPAL, Western Union, Cash, or other available payment term.

11.1V 3s 2000mAh Lithium Polymer Battery for Portable Vacuum Cleaners
How to order?

1. Please let us know what kind of model you need?
2. We make invoice for you.
3. Please check and confirm the invoice.
4. Once confirmed the order, please pay it soon.
5. After payment, all goods will be sent to you in 2 weeks.
11.1V 3s 2000mAh Lithium Polymer Battery for Portable Vacuum Cleaners
If you can answer the following questions before place a order, it will be much helpful for us to make the correct products for you. 
1. Will you use the battery on what product? 
2. Do you need Protection Board for the battery?
3. Do you need cable and connector for the battery? 
4. May I know your continuous and peak discharging current?
2.Q: How about you payment and delivery items?
A: Payment items: By T/T, 50% for deposit, and balance all before shipment. For small amount, we also accept full payment, payment via PayPal, Western Union.
3.Q.Can I have a sample order? 
A: Yes, samples orders are welcome.We can offer free samples if the quantity not above 3 pcs, you only need to pay the shipping cost.
4. Q: How to solve the quality problems after sales?
(1) Take photos & videos of the problems and send to us.
(2) Send back the physical problem battery by express to us.
(3) Engineer will analyze the defective battery within 2 working day.
(4) 1 Year Warranty after leaving our factory, our defect rate is under 1%,we'll repaired or replaced the battery for free if non-human factor quality problems be confirmed.
5.Q: How's your lead time?
   A: 3-5 days for sample, 7-10 workdays for large quantity.
6.Q: What kind of certificates could you provide for these batteries?
   A: We have UL,CE,CB,KC,MSDS,UN38.3 for most our current model, if It's custom-making design, usually no current certificates, we could apply for you if you need, but the related fees should be paid by your side, and if your order is big enough, certificate fees can be refunded. 
7.Q: Can your factory print our logo/brand on the product?
A: Yes, and we will do this free of charge if the order quantity is big enough, please contact us for more details.
8.Q :Can you make customized battery?
A: Of course. We have professional engineers that can give you the most suitable solution according to your special requirements.

More Picures:
11.1V 3s 2000mAh Lithium Polymer Battery for Portable Vacuum Cleaners11.1V 3s 2000mAh Lithium Polymer Battery for Portable Vacuum Cleaners
11.1V 3s 2000mAh Lithium Polymer Battery for Portable Vacuum Cleaners11.1V 3s 2000mAh Lithium Polymer Battery for Portable Vacuum Cleaners11.1V 3s 2000mAh Lithium Polymer Battery for Portable Vacuum Cleaners11.1V 3s 2000mAh Lithium Polymer Battery for Portable Vacuum Cleaners11.1V 3s 2000mAh Lithium Polymer Battery for Portable Vacuum Cleaners

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