Weltool UB21-50 5000mAh Rechargeable lithium-ion battery
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Tax and Duty Paid
Most of countries can enjoy tax and duty paid by Flashlightgo in priority shipping or premium shipping.
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Shipping may be delayed in different countries due to covid-19.
The Type-C USB charging interface is set in the positive protection circuit. It can be connected to the USB charging cable to connect the 5V adapter to charge the battery directly, or the USB interface of the computer with high current output. It can also be connected to the mobile power source to charge the battery. You can also put the battery into the charger in the Charging; there is a charging indicator on the battery to indicate the charging status.
Selected 21700 Li-ion battery cells, low internal resistance, high capacity, large discharge current; battery has triple overheat protection: pressure safety valve protection, diaphragm micro hole protection, PTC cathode blocking protection and positive protection circuit with four protections : Overheat protection, overcharge protection, over discharge protection and short circuit protection. The battery positive cap is raised. It is used in the flashlight to contact the positive spring or the PCB contact surface is tighter. Single or multi-cell batteries can be used at the same time. The robust surface labeling process makes the battery protected, safer and more reliable!
- Model: UB21-50
- Capacity: 5000mAh
- Internal resistance: ≤50mΩ
- Voltage: 3.6V
- Continuous discharge current : 14.5A（10-25 ℃）
- Charging current: 2A (Type-C USB interface charging current), 3.4A (Max. charger charging current)
- Overcharge protection voltage: 4.25±0.05V
- Over-discharge protection voltage: 2.5±0.1V
- Cycle charge and discharge times: 300 times, the battery has 80% capacity
- Charging indicator: red light (charging), blue light (charged)
- Charging temperature: 0-45 ℃
- Discharge temperature: -20-55℃
- Storage temperature: -20-55℃
- Dimensions: 21.4±0.2 mm (diameter), 76±0.2 mm (length)
- Weight: 73±0.5g
The final shipping cost and estimated delivery timeframe will be available to you during checkout. Currently, we offer 3 International shipping methods which are steady and easy to track. Priority worldwide shipping, Premium ( Partial countries) and a faster Express shipping. The estimated times stated below are not guaranteed. An international package could experience delays like postal strikes or severe weather or Cov-19 situation. All shipping ways, PO Box address is not acceptable.
For some flashlights, there's a pure battery inside（phone charging）,If We can not ship your packages via USPS or DHL,we'll ship your package in another way.
If you don’t receive your order within the estimated time frame provided below and suspect that it might be lost in transit, please contact Flashlightgo Support ( firstname.lastname@example.org ) and we can look into the order with the courier. Lost-in-transit requests must be submitted to Flashlightgo Support within 3 months of the date of shipping or before the courier archives the tracking information.
Express by DHL/UPS/Fedex/Aramax/SF etc ( there may be tax need to pay in this way),
The estimated time of delivery is usually 3-7 work days depending on the country. Includes detailed tracking and confirmation of delivery.
Premium ( 6-10days, All tax and Duty Paid),
All tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.
Priority shipping(1-2 Weeks, average 10 days)
If we marked it is with all tax and duty paid, all tax and duty are prepaid to carrier by Flashlightgo before shipping, so you dont need to pay any tax or duty when you get it.
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To ensure that you get the desirable product, we allow a seven-day product return period. Any product return application outside this period will not be entertained.
All returned product must be unused and the original package should be kept.
We do not offer return for personal products like socks and hats or food, magazine and fragile or dangerous products The original receipt must be available for application of return.
No product return for discount products
If the item is marked as a gift when purchased and shipped directly to you, it cannot be exchanged , refunded or warranty.
We only replace items if they are defective or damaged.
Exchange service are offered only to wrong deliveries or product damage not caused by client. If needed, please email to email@example.com.
How long is the warranty period?
Flashlightgo warrants to the original purchaser that the Product(s) shall be free of any defect in material or workmanship for a period of one year for labor and one year for parts from the date of the original order except the items listed below:
Chargers,Batteries and Other Accessories: 3 months warranty
Should the Product(s) supplied by Flashlightgo prove defective because of improper workmanship or material as reasonably determined by us, Flashlightgo agrees, at its option, to either repair or replace the Product free of charge, excluding any shipping or handling charges.
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