- Home Page /
- Household Essentials /
- Batteries /
- All Batteries /
- CBJJ 21700 Battery 5000mah Rechargeable 3.7v for Electr...
0 ratings
Item #:
80139811
CBJJ 21700 Battery 5000mah Rechargeable 3.7v for Electronic Devices,2-Pack
Item #:
80139811
NAD 726
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Only 12 items left in stock.
Order now and get it around Friday, August 21
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Long-lasting rechargeable battery compatible with various devices
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High Capacity
With a robust 5000mAh capacity, the CBJJ 21700 battery offers extended usage for electronic devices, ensuring you stay powered longer than standard batteries.
Reusability
These rechargeable batteries provide an eco-friendly alternative, significantly reducing waste and saving costs over time by eliminating the need for disposable batteries.
Versatile Compatibility
Designed for a wide range of electronic devices, the 3.7v CBJJ batteries deliver reliable performance, making them an ideal choice for various applications from flashlights to power tools.
Product Details
- 21700 rechargeable li-ion battery with 5000mAh capacity and 3.7V voltage
- No memory effect and can be recharged up to 1000 times when fully or partially drained
- Compatible with headlamps, flashlights, toys, RC cars, doorbells, speakers, cameras, and small fans
- High performance with stable output voltage, preventing damage to devices with high frequency use
- Warm service with strict testing for normal use and prompt customer support
- Caution on overcharge, voltage mismatch, and improper battery operation to avoid safety risks
| Rechargeable | Y |
| Volts | 3.7 V |
| Battery capacity | 5000 mAh |
| Brand | CBJJ |
| Dimensions | 0.83 x 0.83 x 2.80 " (2.1 x 2.1 x 7.1 cm) |
| Has written warranty | No |
| Piece count | 2 |
| Model | 21700 |
| Item Weight | 1 lbs (450 grams) |
Dangerous Goods
To avoid the delay in customs clearance process for Dangerous Goods, the shipment shall be opened at our warehouse facility to check the severity of hazardous components. Please see the list of Dangerous goods here.
Who Should Buy?
-
Tech Enthusiasts
Ideal for users who frequently utilize high-drain devices like flashlights, drones, or electronic vaporizers.
-
Frequent Travelers
Perfect for travelers needing reliable power sources for their portable gadgets that support 21700 batteries.
-
DIY Hobbyists
Great option for hobbyists building custom electronic projects that require high-capacity, rechargeable batteries.
-
Low-Demand Users
Not suitable for users with low-power devices that don’t require high-capacity batteries, which may waste potential.
Product Description
About This Item
Introducing the CBJJ 21700 Battery 5000mah Rechargeable 3.7v, a high-capacity and long-lasting power solution for all your electronic devices. This pack includes two powerful CBJJ batteries, ensuring that you always have a spare on hand when you need it most. Designed with performance in mind, these CBJJ batteries are specifically engineered to provide reliable and consistent power. Whether you're using them for your smartphone, tablet, or any other electronic device, you can trust that these batteries will deliver exceptional performance. With a capacity of 5000mah, these rechargeable batteries offer a long-lasting power source that will keep your devices running longer.
Say goodbye to constantly swapping out batteries and hello to uninterrupted usage. Not only are these CBJJ batteries high-quality and durable, but they are also surprisingly affordable. We believe that everyone should have access to reliable power solutions, which is why we offer these batteries at a price that won't break the bank. Perfect for e-commerce businesses, these CBJJ batteries are energy-efficient and will help optimize the performance of your devices. With their long-lasting power and reliable performance, you can trust that these batteries will keep your business running smoothly. In addition to the batteries themselves, we also offer a CBJJ battery charger and other power accessories to complement your e-commerce needs.
We understand that having a reliable power source is crucial for online businesses, and we're here to provide you with the best battery options available. Experience the difference of using the best CBJJ 21700 batteries on the market. Invest in a long-lasting power solution that will keep your devices functioning at their best. Order your 2-pack of CBJJ 21700 Battery 5000mah Rechargeable 3.7v today and never worry about running out of power again.
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
Is the battery suitable for headlamps?
Answer: Yes, the battery is compatible with headlamps. -
Question:
Can the battery be recharged multiple times?
Answer: Yes, the battery can be recharged up to 1000 times. -
Question:
Is the battery safe to use?
Answer: As long as it is used properly, the battery is safe to use.
CBJJ All Batteries Editorial Review
No editorial reviews found
Customer Reviews & Ratings
5 customers ratings
-
5 Star
60%
-
4 Star
20%
-
3 Star
0%
-
2 Star
0%
-
1 Star
20%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
NAD 726
Order now and get it around Friday, August 21
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 12 items left in stock.
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Wide compatibility with multiple devices
- High performance with stable output voltage
- Perfect replacement battery for devices with high frequency
- No memory effect, can be recharged up to 1000 times
- Capacity: 5000mAh, Voltage: 3.7V, Battery type: Li-ion
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.