Four pieces NCR18650B 3400mAh 3.7V Li-ion rechargeable batteries made in Japan, 4 pack front view, white background
Two pieces NCR18650B 3400mAh 3.7V Li-ion rechargeable batteries made in Japan, 2 pack front view, white background
NCR18650B 3400mAh 3.7V Li-ion rechargeable battery made in Japan, single pack front view, white background
NCR18650B 3400mAh Li-ion battery made in Japan, 2 pack positive terminal flat-top view
NCR18650B 3400mAh Li-ion battery made in Japan, 4 pack negative terminal bottom view
NCR18650B 3400mAh Li-ion battery made in Japan, 1 pack positive terminal flat-top view
NCR18650B 3400mAh Li-ion battery made in Japan, 4 pack positive terminal flat-top view
NCR18650B 3400mAh Li-ion battery made in Japan, 2 pack negative terminal bottom view
NCR18650B 3400mAh Li-ion battery made in Japan, 1 pack negative terminal bottom view

NCR18650B 3400mAh 3.7V Li-ion Battery – Made in Japan (1/2/4 Pack)

Price range: $9.99 through $31.99

🔘 NCR18650B 3400mAh 3.7V | 🔋 Li-ion | 🇯🇵 Made in Japan | 📦 1/2/4 Pack Options

🛡️ PayPal Protected (Buyer coverage included)✅ 90-Day Warranty
SKU: NCR18650B Category: Tags: , , , ,

Description

Manufacturer: Japan (Made in Japan)

Battery model: NCR18650B

Battery capacity: 3400mAh (Typical) / 3250-3300mAh (Minimum)

Nominal voltage: 3.6V – 3.7V

Charge limit voltage: 4.20V ± 0.03V

Discharge cutoff voltage: 2.5V

Max continuous discharge current: 4.87A (approx. 1.43C)

Standard charge current: 1.625A

Internal resistance: < 40mΩ

Dimensions: 18.2mm × 65.0mm (Diameter × Height)

Weight: 48.5g (approx.)

Battery type: Li-ion (Rechargeable)

Cycle life: Approx. 500 cycles

Package include: 1 / 2 / 4 x battery (select option above)

Experience premium Japanese quality with the NCR18650B 3400mAh Li-ion battery. Manufactured in Japan, this high-capacity 18650 cell delivers reliable power for flashlights, power banks, DIY battery packs, laptops, and various electronics projects. Made with grade A cells, featuring built-in safety protection against overcharge and over-discharge. CE and RoHS certified for safety compliance.

Compatibility Note: This battery features standard flat-top design (no soldered button). Suitable for devices accepting flat-top 18650 cells. For devices requiring button-top batteries, please check compatibility before purchasing. This is an unprotected cell – use with a compatible Li-ion charger featuring overcharge protection.

Battery Care Tips: Avoid full discharge (keep above 2.5V). Use a compatible 18650 Li-ion charger. Never leave charging unattended. Do not short circuit terminals. Keep away from high temperatures. If swelling occurs, stop use immediately. Store in a cool, dry place when not in use. Always recycle used batteries properly.

✅ Made in Japan – Premium quality

✅ 3400mAh High Capacity – Extended runtime

✅ Flat-Top Unprotected Cell – Standard 18650 format

✅ CE / RoHS Certified – Safety compliance

✅ 90-Day Warranty – Hassle-free replacement

✅ Ships in 3-7 days with tracking – Fast delivery

🛡️ Shipping Protection Available at Checkout – Covered against loss, damage, or theft

✅ PayPal Buyer Protection included – Secure checkout

⚠️ Low Stock Alert: Only 8 left in stock. Order now to avoid waiting.

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Additional information

Quantity

1 PCS, 2 PCS, 4 PCS

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Frequently Asked Questions

Yes, this NCR18650B battery is manufactured in Japan. It features premium Japanese quality control and high-grade cell construction, delivering reliable 3400mAh capacity for demanding applications.

This NCR18650B is a flat-top unprotected cell, which is the standard format for many devices like power banks and DIY battery packs. Some flashlights and laptop batteries require button-top cells with protection circuits. Please check your device's battery compartment before purchasing to ensure compatibility.

The NCR18650B has a maximum continuous discharge current of approximately 4.87A (about 1.43C). It is designed for moderate-drain applications like flashlights, power banks, and laptop batteries, not for high-drain devices like vape mods or power tools. For high-drain applications, consider high-discharge 18650 cells.

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