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HW 3.7V USB Rechargeable Lithium Batteries, Reliable True 3500 mAh (13000mWh) 18m Long-Lasting High Performance Battery, for Flashlights, Headlamps, RC Cars (Button Top 2 Pack)

  • Based on 2 reviews
Condition: New
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$13.09 Why this price?
Holiday Deal · 14% off was $15.19

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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Dec 31
Order within 22 hours and 5 minutes
Available payment plans shown during checkout

Features

  • HW usb rechargeable batteries- 3.7V lithium batteries(SIZE: 18.5mm x 70mm),large batteries used for flashlight, toys, headlamps and other household devices.
  • Reliable True Capacity 3500 mAh: HW 3.7V 18mm Rechargeable Battery provide actual 3500mah capacity, long-lasting and reuseable. Those batteries that claim to exceed 5000mah, their actual capacity will be much lower.
  • Built-in micro USB port - easy to charge with the included 2 in 1 USB cable, no additional battery charger required, just plug into any USB port at anytime and anywhere, more than 1200 cycles, eco-friendly and save money.
  • Safety Assurance - built-in integrated safety circuit protects battery from over-charge, over-discharge, short-circuit and over-heat, ensures complete safety for the battery charging
  • High performance - HW 3.7V Li-ion batteries with 3500mAh capacity, support stable 3.7volt output voltage, makes the devices work more stable and lasting longer, great replacement batteries for high frequently used devices.
  • [Environmentally Friendly Rechargeable 3.7v Battery] As a professional battery manufacturer, HW always adheres to the research and development of efficient and energy-saving rechargeable batteries. Compared to alkaline batteries, rechargeable batteries have over 1200cycles, low self discharge, and constant voltage, providing more stable power supply to devices. Recyclable charging for use, saving expenses and reducing environmental pollution.

Number of Batteries: 2 Lithium Ion batteries required. (included)


Brand: HW


Battery Cell Composition: Lithium Ion


Recommended Uses For Product: Gaming Controller


Unit Count: 2.0 Count


Product Dimensions: 2.56 x 0.71 x 0.71 inches


Item Weight: 3.88 ounces


Item model number: HW18T


Batteries: 2 Lithium Ion batteries required. (included)


Date First Available: June 21, 2023


Manufacturer: TIGER HEAD HI-WATT BATTERY (HK) CO. LTD


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Dec 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Very good so far in a Coast PX19R 2,600 lumens flashlight
I bought these batteries to put into a Coast PX19R. From the few tests that I have done, it can run for 4 hours in its third setting which is around 1,000 lumens. On the second test, I ran the flashlight at the highest lumen setting; a bit over 2,500 lumens. The batteries have a bit of a hard time keeping up the brightness, but that is expected because it's demanding a very high amount of energy from it. I can get 2 hours out of the battery without it slipping into the third setting which is again 1,000 lumens. It's no big deal because the most important factor of the battery is that you can still get sufficient use out of it. Thus far I am satisfied. The price is very reasonable. If these batteries continue to hold up well, I will more than likely buy two more. Should anything change in terms of performance I will update my review. ... show more
Reviewed in the United States on December 12, 2023 by ExNYer72

  • Everything Checks Out
WHAT’S INCLUDED: 2x 3.7v 18J size batteries 1 USB-A to Micro USB Splitter charging cable Plastic Holding Case PRODUCT: Note: These batteries are NOT the same size as a 18500 or a 18650 battery. They are LARGER They are 18.5mm by 70mm in length. These are large batteries. 3.7v at 3500mAh capacity. This would be considered size 18J These Li-ion batteries use Micro USB ports to charge (Kind of old for 2023). They came with a USB-A to Double Micro USB splitter so you can charge both at the same time. They have a red indicator light that will glow on the top when they are charging. FINAL THOUGHTS: All voltage checks out. My tester reads them at 3.6V. This is acceptable as 3.7v batteries can read anywhere from 3.5-3.7 for true voltage. They will come partially charged but make sure to hook them up and charge them all the way. The only thing I Don’t like is Micro USB. We all know it’s not a very robust connection and in 2023 that is a very outdated port. I’ll update this review after a few months of use to make sure they hold up after several charging cycles later but the quality seems fine. They are built nicely. Didn’t have any of that odd Lithium smell that some cheaper batteries have. Just make sure that your devices use THIS Size of battery. ... show more
Reviewed in the United States on November 26, 2023 by Patrick Calderaz Patrick Calderaz

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