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.
✅ Why Our Warranty Stands Out
Unlike marketplace sellers with short buyer protection windows, we handle claims directly — no automated disputes, no endless back-and-forth.
| Compare | ✅ Qingsm Tech | ⚠️ eBay / AliExpress |
|---|---|---|
| Warranty Period | 90 days from delivery | 15-30 days from order confirmation |
| When It Starts | 📦 Upon delivery | ⚠️ Upon order confirmation (even before you receive it) |
| Claims Handling | We do it directly — email us | Automated dispute system, seller dependent |
| After Window Expires | Still can contact us for support | No recourse, seller can ignore you |
🔋 90-day warranty is the industry standard for replacement batteries. Batteries naturally lose capacity over time — this normal wear is not covered. Warranty applies to manufacturing defects only.
📦 Shipping Cost & Delivery Time ( Economy Shipping from China )
📦 Note: Batteries are classified as hazardous goods and must be shipped via specialized channels, which may take slightly longer than standard couriers. Delivery times are estimates; actual delivery may be affected by customs, weather, or other unforeseen circumstances.
| Destination | Freight (USD) | Est. Delivery Time |
|---|---|---|
| United States | $7.80 | 8-20 days |
| Canada | $6.80 | 18-45 days |
| Mexico | $10.00 | 30-60 days |
| Germany, France, United Kingdom, Greece | $6.50 | 18-45 days |
| Ireland, Austria, Belgium, Poland, Denmark, Switzerland, Portugal, Norway, Slovakia, Spain, Hungary, Italy, Czech Republic, Luxembourg, Netherlands, Sweden, Cyprus | $8.00 | 18-45 days |
| Croatia, Finland, Lithuania, Latvia, Slovenia | $8.00 | 30-60 days |
| Romania | $14.00 | 30-60 days |
| South Korea, Japan, Australia, New Zealand, Israel, Malaysia, Singapore, Thailand, Philippines, Kazakhstan | $7.50 | 18-45 days |
| United Arab Emirates, Saudi Arabia, Vietnam, Chile, Peru, Colombia, Brazil | $18.00 | 25-60 days |
* Delivery times are estimates; actual delivery may be affected by customs or other factors. If your country is not listed, we are currently unable to ship batteries to that destination.
🇧🇷 Note for Brazil: Brazilian customs can occasionally cause delays of up to 80 days or more. And please indicate the recipient’s CPF, as it is required for Brazilian customs and shipping. Thanks ! We appreciate your understanding.
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