Panasonic NCR18650B 3400mAh Li-ion Battery Flat-Top Unprotected

£11.50£55.00

We are proud to offer the legendary Panasonic NCR-18650B Li-ion Batteries. Our stock is from official Panasonic European distributors guaranteed to be Grade 1.

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SKU: Panasonic NCR18650B 3400mAh Li-ion Battery Flat-Top Unprotected Category:

Description

Please note the Panasonic batteries are unprotected and flat top versions.

The internal resistance of a battery is a good indicator of its age and even its state of health. Manufacturers tend to quote their IR values using the 1000 Hz AC measuring method which tends to give a lower figure. The DC resistance method is higher but considered to be more realistic.

We provide IR readings of each and every battery using Hioki 3560 for the AC impedance value and a Cadex C7400ER for the DC resistance value for the battery. Panasonic quotes a value of less than 100mΩ. Personally I would not want to touch a li-on battery with an IR of more than 50mΩ. The internal resistance of a battery is a resistive force that resists the free flow of current through the battery and in high current applications this causes a voltage drop in the battery. The less the internal resistance the lower the voltage drop and better the performance and runtime.
That is why we insist on providing this vital piece of information with precise readings from reliable analysers so that we can give you the best value for your money.
With us you know you are getting the best of the best.

 

  

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