Search  for anything...

CWUU 18650 Rechargeable Battery 3.7V 18650 Battery Li-ion Cell 9900mAh (4 Pack,Button Top)

  • Based on 8 reviews
Condition: New
Checking for product changes

Notify me when this product is back in stock

$19.99 Why this price?
Save $6.00 was $25.99

Buy Now, Pay Later


As low as $4 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout. Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: Unavailable
Fulfilled by Changhui Technology
Available payment plans shown during checkout

Size: 1 Count (Pack of 4)


Color: 9900-18650-Button Top


Number of Batteries: 4 Lithium Ion batteries required.


Brand: CWUU


Battery Cell Composition: Lithium


Recommended Uses For Product: Indoor


Unit Count: 4.0 Count


Product Dimensions: 2.64 x 0.7 x 0.7 inches


Batteries: 4 Lithium Ion batteries required.


Date First Available: July 26, 2023


Manufacturer: CWUU


Country of Origin: China


Frequently asked questions

This product is currently out of stock. Please check back later for shipping info.

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Very nice
Size: 1 Count (Pack of 4) Color: 9900-18650-Button Top
Only hate about it was no plug it was just usb connection. Glad have one outlet has usb.
Reviewed in the United States on August 26, 2023 by #Kevdjvapor

  • Fits Welch allyn
Size: 1 pack Color: 72300 Battery
It had to be charged prior to usage. Fits easily into a Welch Allyn handle. So far the life of the battery is good.
Reviewed in the United States on August 4, 2023 by Jill B

  • Rechargeable Otoscope Battery
Size: 1 pack Color: 72300 Battery
It works as advertised and hopefully will be long lasting.
Reviewed in the United States on June 14, 2023 by doc rich

Can't find a product?

Find it on Amazon first, then paste the link below.