Product Overview
The NCR18650B is a genuine Panasonic 18650 rechargeable Li-ion cell rated 3.7V / 3400mAh, supplied as a 6-cell multipack. Every 18mm x 65mm flat-top cell delivers stable high-capacity output with a 4.2V charge voltage, a 2.5V discharge cut-off and a rechargeable life of 500+ cycles. The NCR18650B is the standard high-capacity cell for LED flashlights and tactical lights, power tools, vaping devices, power banks, electric bikes, laptop battery packs and emergency lighting equipment. Each cell weighs approximately 48g and ships brand new with a 1-year warranty.
Specifications
| Attribute | Details |
|---|---|
| Standard Model | NCR18650B |
| Capacity | 3400mAh |
| Voltage | 3.7V |
| Battery Type | Li-ion (High Capacity) |
| Chemistry | Lithium Nickel Cobalt Aluminum Oxide |
| Size | 18mm x 65mm |
| Weight | Approx. 48g |
| Charging Voltage | 4.2V |
| Discharge Cut-off Voltage | 2.5V |
| Package | 6 Cells (Multipack) |
| Cycle Life | 500+ cycles |
| Condition | Brand New (100% New, 1-year warranty) |
Replace Part Numbers
- NCR18650B
Compatible Models
For Flashlights & Emergency Lighting
- LED Flashlights & Tactical Lights
- Emergency Lighting Equipment
For Power Tools & Personal Devices
- Power Tools
- Vaping Devices
- Power Banks
For E-Bikes & Battery Packs
- Electric Bikes
- Laptop Battery Packs
Notice: These are raw flat-top unprotected cells. Use them in packs with a dedicated BMS or in devices that already have built-in protection.
FAQ
What devices is the NCR18650B 18650 cell suitable for?
It powers LED flashlights and tactical lights, power tools, vaping devices, power banks, electric bikes, laptop battery packs and emergency lighting equipment that accept 18650 cells, and it is also widely used for DIY battery pack construction.
Is the NCR18650B a protected cell?
No. It is a raw flat-top cell without an integrated protection circuit, so it is intended for battery packs with a dedicated BMS or for devices with built-in protection.
What are the key ratings of this 18650 cell?
3400mAh typical capacity at a 3.7V nominal voltage, a 4.2V charge voltage, a 2.5V discharge cut-off, and 18mm x 65mm dimensions with a weight of about 48g.
Note:
This is not a complete list or inclusion of all compatible laptop models. You can open the back of your laptop to check the original battery model. If you have any compatibility questions, please contact us online.The casing is made of durable materials, the mainboard adopts advanced technology, and the battery core is produced with high-quality raw materials to ensure that it will not be damaged after long-term use.
Our products are equipped with multiple protection technologies such as overvoltage, overcurrent, and overcharge to effectively protect the safety of batteries and equipment.
Shipping Methods
| Shipping Methods | Ship To | Est. Delivery Time | Shipping Cost | Taxes & Fees |
|---|---|---|---|---|
| USPS / DHL | United States | 10-15 business days | Free | Free |
| Canada Post | Canada | 10-15 business days | Free | Free |
| Royal Mail / Yodel | United Kingdom | 15-20 business days | Free | Free |
| DHL | Germany | 15-20 business days | Free | Free |
| La Poste | France | 15-20 business days | Free | Free |
| Correios | Mexico/Spain/IT | 15-25 business days | Free | Free |
| Local Carriers | SE Asia / East Asia | 5-10 business days | Free | Free |
| Local Carriers | Rest of Europe | 20-25 business days | From $5.99 | Free |
| Local Carriers | UAE / Saudi Arabia / Israel | 16-20 business days | From $7.99 | Free |
📦 Shipping & Tracking Information
Looking for faster shipping? We offer local warehousing services. Please visit our "Local Delivery" page for items available for immediate dispatch.
1. How to Track Your Package:
Please choose the tracking link that corresponds to your destination:
- Europe & The Americas: 17track.net/en
- The Middle East: mena56.com
- Asia: 17exp.kingtrans.cn
Need Help?
If you cannot find your package on any of the above websites, please contact us immediately.
📧 Email: sales@batterymall.com / info@batterymall.com
📱 WeChat/WhatsApp: (+86) 198 6775 1872 / (+86) 191 2767 3310
🚚 Estimated Delivery Time
(1) Shipping from China:
- To Asia: 5-20 business days
- To North America: 10-15 business days
- To Europe/South America: 15-20 business days
(2) Shipping from Local Warehouses:
- From US Warehouse: 3-5 business days
- From European Warehouse: 2-10 business days
- From Russian Warehouse: 3-5 business days
Please note: Exact arrival times depend on the specific country and customs processing.
⚠️ Tax & Customs Information:
Global product prices include customs duties (some countries require a tax ID). Please refer to the settlement invoice for specific shipping costs. Special handling is required if your package is inspected.
Payment Methods
Paypal

Payments by PayPal, no PayPal account required. Paypal is safe and free for buyers.
PayPal account: Payment@batterymall.com
Account Name: ShenZhen KingSener Science and Technology Co., Ltd
Credit or debit card
VISA, MasterCard, the United States n Express,Maestro & Laser Card, APPLE Pay,etc.
PayPal never shares your financial information with us.
WeChat Pay
Currently only supports QR code payment. Please contact WeChat customer service and go to WeChat App to scan the QR code to complete the payment.
Google Pay
Pay with Google Pay, which is more convenient and faster.
Apple Pay
If you use an Apple device, you can use Apple Pay to pay, which is more convenient and faster.
Bank Transfer
Q&A
Quick FAQ:Laptop Battery Care & Troubleshooting
- How long does a KingSener battery last?2 to 3 years (approx. 500-800 charge cycles) under normal temperatures.
- Laptop says "Battery Not Detected". How to fix?1. Hard Reset: Unplug AC, remove battery, hold power button for 30 seconds.
2. Clean Contacts: Wipe metal connection pins.
3. Reset Drivers: Uninstall battery drivers in Device Manager, then restart.
4. Update BIOS: Ensure motherboard firmware is up to date. - Can I leave my laptop plugged in 24/7?Yes, the built-in TI chip prevents overcharging. Tip: To prevent long-term cell swelling, unplug and drain the battery to 40% twice a month.
- How do I store a laptop battery long-term?Store it at 50% charge in a cool, dry place. Never store at 0% or 100%. Cycle the battery every 3 months to maintain chemical activity.
-
Are KingSener batteries safe?Yes. All batteries feature built-in IC protection against short-circuits, over-voltage, and overheating. Fully CE, FCC, and RoHS certified.