Naccon 9V Super Heavy Duty (Red)

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Official specifications:
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A battery called "Heavy Duty" is Carbon-Zinc chemistry, i.e. a battery chemistry with very little energy and power.

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The low enery and power is also obvious here, the load must be keept very low to get any energy from the battery.

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Conclusion

This battery can power a DMM (4-10mA current draw for some hours), but not anything with more current draw. Alkaline have 2 to 3 time the energy and even more with a bit of load.



Notes and links

How is the test done and how to read the charts
Compare to other 9V batteries: Alkaline/NiMH/Lithium/other