2 pieces 3.7V 18650-2P 4.4AH Rechargeable Cylindrical 4400mah 18650 Lithium Battery Pack Li-ion with Wires And Connector Vertical Shape

Preço normal
$23.56
Preço normal
Preço de saldo
$23.56
Shipping calculated at checkout.

Fornecedor : BATTERYINT

Product Type : Household Battery

Sku : BI-JJD18-0489

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Expert-Service
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Fast Delivery
Easy and fast return byour Return label.
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Easy-Return
USA Stock,5-7 Days Fast Delivery.
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30 days money back And 12 months warranty.

2 pieces 3.7V 18650-2P 4.4AH Rechargeable Cylindrical 4400mah 18650 Lithium Battery Pack Li-ion with Wires And Connector Vertical Shape

product information:

  • Nominal capacity:4400mah
  • Nominal voltage:3.7v
  • charge current: Standard Charge 0.5CRapid charge 1.0C
  • standard Charging method:0.5c CC (constant current) charge to 4.2V, then CV (constant voltage 4.2V) charge till charge current decline to 0.01C
  • charging time: Standard Charging Approx 5 hours Rapid charge Approx 2 .5hours
  • Max.charge current1c
  • Max.discharge current2c
  • standard Discharge current1c
  • Discharge cut-off voltage3.0v
  • charge cut-off Voltage4.20v
  • initial Impedance:≤60momh
  • weightApprox 90g
  • Operating temperatureCharging 0~45 degrees CelsiusDischarging -20~60 degrees Celsius
  • storage temperature0-25 degrees Celsius
  • storage Humidity:≤75%RH
  • Appearancewithout scratch,distortion,contamination and leakage
  • Standard environmental conditionTemperature 2315 degrees CelsiusHumidity 45-75%RHAtmospheric Pressure 86-106 Kpa

Features

  1. Long life, large capacity and good shock resistance
  2. Low self-discharge and good discharge performance at low temperature
  3. Strong charging acceptance and quick-charging capability
  4. Strong over-discharge resistance and charge retention
  5. Maintenance-free and no acid or water for maintenance in usage
  6. Excellent large current discharge performance, and have obvious advantages in startup and climbing
  7. High temperature performance 8. Environmentally friendly
  8.  Lighter weight smaller size

Package includes:

  • 2 x battery 
We want to make sure you are happy and satisfied with your  products. If you are unsatisfied and would like to return your order, we will accept a return and refund

Can i cancel an order?
  • Orders on batteryint.com can be cancelled before shipment.
  • Please contact our customer service if you want to cancel your order,After we confirmed the shipping status,we will issue a refund(If we have shipped your order,it will be treated as returns).
  • Please note:paypal fee will not refund as the paypal Policy for seller.
  • If the battery you purchased is a customized product, cancellation unacceptable.
DOA (dead on arrival) Return Policy:
  • If your battery arrives damaged or is not working, you can return it to us within 7 days after delivery or 30 days after shipment in case the delivery date is not traceable. You will receive an e-mail containing the shipment date and other details of your order after it has been shipped.
  • Please include all of its accessories, like cables, chargers, batteries, in the returned parcel. If an accessory or component is missing, we will ask you to pay for it. All the return shipping fees will be covered by us.
Defective item Return Policy:
  • We will do our best to ensure that the products shipped to our customers are in their best condition. If your product turns out to be defective, please provide us with the following proofs:
  • This clause does not include products of a category with specific warranty terms as well as damages caused by incorrect usage of a product.
  • Photos of the front and the back of the package or box;
  • Partial shipment slips (if applicable);
  • Photo or video of the defective item;
  • Photo or video and a detailed description of the problem;
  • Upon being returned, the defective item will be refunded or replaced for free.
  • Return shipping fee reimbursement is 30% of the item’s price up to a maximum of $30.
Incorrect item received:
If the item you have received differs completely from the one you ordered, please do not hesitate to contact our customer service and to provide us with the following proofs:
  • Photos or a video of the incorrect item;
  • Photos or a video showing the problem occurred with this product;
  • Because different batches of the products are supplied, the item logo or packaging you received may vary from the one displayed on our website. If all the functions and appearance of the product prove to be correct, please understand that this case will not be included in this policy. If a return is necessary, replacement plus shipping cost reimbursement will be issued to you once you send us a return shipping receipt showing how much you paid to return it. Please be sure that the incorrect item you return is in the original package and the merchandise is in the same condition you received it in. For the incorrect item, if you are able to find a use of it and prefer to keep it, you may suggest that to us and we will offer you a certain discount for buying it.
Unsatisfactory products:
  • If you are not satisfied with your purchase, you can return a product within 30 days after delivery to receive a replacement or a refund of its price minus the shipping fees. If the return is not a result of our error, customers will be required to cover shipping cost both ways.
  • Please ensure to return the item with its original packaging and accessories in the same condition as when you received it.

If the products malfunctions (except for reasons caused by incorrect usage and accidental or intentional damage) within 90 days after shipment, you can return the product back to us. You should receive an e-mail with the shipment date and other details after your order has been shipped. Once we receive and approve the return,a full refund or replacement will be offered and a shipping cost reimbursement will be issued when you provide us with a receipt of the shipping charges you paid to send it back to us (the tracking number of the return package or a screenshot of the shipping receipt).
The return shipping fee should be less than 30% of the defective item(s) value, and also less than $30(USD). We will cover the actual postage (according to the receipt you provided). If the return shipping fee exceeds the limit above, please contact our customer service for further confirmation.

After 90 days and within 180 days from shipment
After receiving the defective item, we will forward it to our repair center. You will be charged the return shipping fees And Batteryint will charged the send-back shipping fee.

After 180 days from shipment
Batteries are consumables ,We will not accept a refund or a replacement after 180 days from shipment.

How can I return the defective item to Batteryint?
All customers should contact Batteryint Customer Service for approval before sending anything to us before returning any item(contact:sales@batteryint.com) . Batteryint will not be responsible for returned item(s) without notifying us in advance.

Notes:

  • The returned products must be in a new and resolvable condition with original packaging, including cartons, parts, instruction manuals, etc.
  • The buyer is responsible for the return postage, we will bear all the costs of sending replacement. For the sake of protection, we strongly recommend the buyer to insure the returned goods against loss or damage, and use a shipper who can provide proof of delivery.
  • Any return must consult us first, do not accept return without RMA (provided by our customer service).
  • Our refund policy only refunds the purchase price (excluding freight and handling charges or insurance).
  • Please place a note inside the return package by including the following details(order number;product ID or name;quantity;a short description of the problem that occurred with this product)
  • After mailing back the product, please send us the tracking number and a copy of the shipping receipt; if we can not receive this information, we will have to wait until when the product arrives in our warehouse.We have no responsibility to respond to items lost in the return process.
  • After we receive your returned items, we must handle any exchange or issue refund.Refunds will be arranged to the same payment method you used to place this order. All the intermediary handling fees and bank processing fees will be at the customer's expense;
  • Products beyond the warranty period are not included in the return, exchange and refund policies.

How long will you get your refund?

  • If your return request have been confirmed and aprroved by our customer service,we will issue refund after received your returned parcel.
  • Refunds will be arranged to the same payment method you used to place this order. All the intermediary handling fees and bank processing fees will be at the customer's expense;
  • Normally it will take 3-7 working days to get your money back to your account.

1. What is a 3.7V 18650-2P 4.4Ah rechargeable lithium-ion battery pack?

The 3.7v lithium-ion battery pack is a rechargeable power source composed of two 18650 lithium-ion cells in a 2P configuration. With a capacity of 4400mAh, this li-ion battery 18650 pack is designed to provide long-lasting and reliable power for a variety of devices, such as flashlights, electronics, and other applications that require a compact, high-capacity power source. Its cylindrical shape and wire connectors make it easy to integrate into various setups.

2. How long does a 3.7v lithium-ion battery 18650 pack last on a single charge?

The duration of a single charge for the 3.7v lithium-ion battery depends on the device it powers and the rate at which energy is consumed. In general, a li-ion battery 18650 pack with a capacity of 4400mAh can last several hours or even a full day, depending on the power requirements of the device. For high-energy devices like flashlights, the battery might last a few hours, while in low-energy electronics, it could last much longer.

3. How do I properly charge a 3.7v lithium-ion battery pack?

To properly charge a 3.7v lithium-ion battery, use a charger that is specifically designed for lithium-ion batteries with a matching voltage. Connect the charger to the battery’s wire connectors and ensure the charging voltage does not exceed 4.2V per cell to avoid overcharging. A li-ion battery 18650 should be monitored during charging, and it’s best to avoid letting the battery drain completely before recharging to extend its lifespan.

4. How long does it take to fully charge a 4400mAh li-ion battery 18650 pack?

The time required to fully charge a li-ion battery 18650 pack depends on the charger's output. Generally, with a standard charger, it can take 3 to 5 hours to charge a 3.7v lithium-ion battery pack with a capacity of 4400mAh. Using a higher-output charger can reduce the charging time, but it’s important to avoid using fast chargers too frequently, as they can reduce the battery's long-term health.

5. Is the 3.7v lithium-ion battery 18650 pack safe to use in everyday devices?

Yes, the 3.7v lithium-ion battery pack is safe for everyday use as long as it is handled and charged correctly. The li-ion battery 18650 includes safety features such as protection circuits to prevent overcharging, overheating, and short-circuiting. However, it's important to follow manufacturer guidelines for charging and usage, and avoid exposing the battery to extreme temperatures to ensure its safety.

6. Can I use the 3.7v lithium-ion battery pack in various applications?

Yes, the 3.7v lithium-ion battery pack is versatile and can be used in a wide range of applications. Common uses include flashlights, power banks, portable electronics, and DIY projects. The li-ion battery 18650 pack’s compact cylindrical shape, wires, and connectors make it easy to integrate into different setups, providing reliable power to both high-energy and low-energy devices.

7. How can I extend the lifespan of my 3.7v lithium-ion battery 18650 pack?

To extend the lifespan of your 3.7v lithium-ion battery, avoid fully draining the battery before recharging it. It’s best to keep the charge between 20% and 80%. Also, store the li-ion battery 18650 pack in a cool, dry environment, and avoid exposing it to extreme heat or cold. Regularly monitoring the battery for signs of wear or damage and ensuring proper charging practices will help maintain its health over time.

8. How do I install a li-ion battery 18650 pack with wires and a connector?

To install a li-ion battery 18650 pack with wires and a connector, simply connect the wires to the appropriate terminals or slots in your device, ensuring the positive and negative ends are correctly aligned. The 3.7v lithium-ion battery pack is designed for easy installation, and the included connectors make it compatible with various devices. Always check your device's user manual for specific installation instructions.

9. Can I replace an older battery with a 3.7V 18650-2P 4.4Ah li ion battery pack?

Yes, you can replace an older battery with a 3.7v lithium-ion battery pack if the voltage and capacity match the requirements of your device. The li-ion battery 18650 pack is ideal for upgrading or replacing batteries in devices that support lithium-ion technology. Always ensure that the voltage, current rating, and size of the replacement battery are compatible with your device to avoid potential issues.

10. Where can I purchase a 3.7v lithium-ion battery 18650 pack?

You can purchase a 3.7v lithium-ion battery pack from various online retailers, electronics stores, or specialized battery suppliers. When buying a li-ion battery 18650 pack, ensure it meets your specific device’s requirements and comes from a reputable seller to guarantee quality and safety. Look for reviews and warranty options to make sure you're getting a reliable product.