AmpMax 18650 3400mAh (Black)



Official specifications:

• Original Panasonic cell from Japan
• Built-in protection circuit, guards against - Over-charge, Over-discharge , Over-current and short-circuit
• Triple MOS's for superior high current discharge
• Improved voltage stability due to low internal resistance
• PET sheath, environmentally friendly and not easy to crack
• Voltage: 3.7V (4.2V when fully charged)
• Capacity: 3400mAh
• Standard charge current 1700mAh
• Standard discharge current 680mAh
• Standard discharge cut –off voltage 2.5V
• Standard discharge cut –off current 30mA
• PCB protection trip current 10A
• Dimensions:18 mm x 68.5 mm (+/-0.2 mm)
• Weight: 48g

The cell used can be discharged down to 2.5 volt, in my test I only discharges to 2.8 volt, i.e. I do not measure the full capacity. But then, not all lights will be able to use the full capacity.



The battery is packed both in a box and in shrink wrap.








Very nice tracking between the two batteries.















Conclusion

This battery has higher capacity and better high current capacity than its predecessor (3100mAh/NCR18650A).
With the added protection it is a very good battery.



Notes and links

The batteries was supplied by AmpMax/AmpMaxWorld for review.

How is the test done and how to read the charts
How is a protected LiIon battery constructed
More about button top and flat top batteries