Project Description

18650 battery button top ncr 3.7v/36v rechargeable with pcm protection

18650 battery button top with protection PCM BMS protection. The battery is hot sale used for high end flashlight. all Li-ion batteries can add PCM BMS protection button top. CMX provide wholesale and OEM manufacturing service for both button top 18650 cells and flap top, welcome send inquiry to email:

18650 top button protection circut

Top button 18650 with PCM

CMX button top 18650 could be customized with different ncr 18650 cells. Like panasonic 18650 button top, sanyo ncr 18650 ga 3500mah button top, samsung 18650 button top battery.

  • 5.2A max discharge rate for high-drain electronics, such as flashlights with ultra-bright turbo modes
  • Save the environment (and your wallet) with a reusable, rechargeable battery with 500+ charge cycles
  • Button top terminal great for flashlights and other portable electronics
Ask for Quotation


1,Q: What’s the main product from CMX?
A: Rechargeable battery. Li-ion, Lipo battery and lithium battery pack.

2,Q: What is overcharge?
A: After charge, tested the batteries’ initial state and capacity. Charge to 10.0V at 3C current, then charge to 0.01C at CV mode. Observe changes in battery appearance.

3,Q: What is over discharge?
A: After charge, test the batteries’ initial state. When the batteries are normal, discharge to 0V at 0.5C. Observe changes in battery appearance

4. Q: Can I have a sample order?
A: Yes, we accept sample order to test and check quality. Batteries can be made as require.

5. Q: Do you have MOQ limit?
A: Yes, we have MOQ limit for mass production, but it depends on battery model. Please contact us for details.

6. Q: How about the lead time?
A: Samples will takes 5-7 business days. Mass production will takes 25-30 days. It depends on quantity.

7. Q: How about shipping and delivery time?
A: Generally, battery will be shipped via Express, such as DHL, TNT, FedEx and UPS, delivery time is 3-5 business days. Or DDP service, delivery time is 11-15 business days. Airline and sea shipping also available.

8. Q: What about after-sale service?
A: We will offer you 1 year guarantee. If there are any problems, please inform us, we will offer you positive solutions.

Item Specification
No. ncr18650b 3400mah/ 100% authentic cells
Nominal Capacity 3400mAh(0.2C, 2.50V discharge)
Minimum Capacity 3250mAh (0.2C, 2.50V discharge)
Charging Voltage 4.2±0.05V
Nominal Voltage 3.6V cut off at 2.75v full charge at 4.35v
Charging Method CC-CV (constant voltage with limited current)
Charging Current Standard charge: 1700mAh, Rapid charge: 3400mAh
Charging Time Standard charge: 3 hours, Rapid charge: 2.5 hours
Max. Charge Current 3400mAh (ambient temperature 25°C)
Max. Discharge Current 6800mAh (ambient temperature 25°C)
Cell Weight 50g max.
Cell Dimension Height: 67.00mm or 69mm max. Diameter: 18.25mm max.
Operating Temperature Charge: 0 to 45 °C Discharge:-20 to 60°C

Bulk quantity 18650 for wholesale from Coremax

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Dimentions about flap top, button top and button top with pcm.

PCM and the top on the positive will increace the height of the 18650 cells. Please check carefully and make sure the battery will fit in your device. If you are not clear, please contact with CMX directly to clarify.

dimensions of button top 18650