Test/review of UltraFire CN18650 9800mAh (Yellow)

[size=+3]UltraFire CN18650 9800mAh (Yellow)[/size]



Official specifications:

• Voltage: 3.7V
• Capacity: 9800mAh
• Lifetime: 1000 cycles

A cheap battery with serious overstated capacity.











The CELLS can deliver about 1A, at 2A they start to loose voltage and at 5A they cannot really do anything.
The two cells matches fairly well, this probably means the battery is manufactured this way, i.e. it is not a old rewrapped cell.





















[size=+3]Conclusion[/size]

The cell is as expected, this means low capacity and not able to deliver much current.
The protection specified on the wrapper is not included, this is a bare cell.



[size=+3]Notes and links[/size]

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
Graphical comparison to 18650 and other batteries
Table with all tested LiIon batteries

i was wondering how you find out the amperage on battery's .and you are my favorite reviewer

raggie33 said:

how can a measure hw much current my battery can supply?

Click to expand...

You can test batteries with analyzing chargers, hobby chargers and electronic loads. They all exist in versions with computer connection for logging the result.

And please do not quote the full review, if you need to quote something limit it to a few sentences.

awesume ty im about to order the SKYRC New Model with 2 Cooling Fans MC3000