Panasonic Super Heavy Duty AAA CAN
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Official specifications:
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Carbon-Zinc AAA batteries from Panasonic.
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This type of batteries has a rather bad performance.
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Even at 10mA discharge the capacity is rather low.
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Conclusion
This type of batteries may be very cheap, but the energy contest is also very low and they cannot deliver much power.
Notes and links
I got the batteries from: a Canadian appreciative of the work HKJ does and shares
How is the test done and how to read the charts
Compare to other AA/AAA batteries: Alkaline/NiMH/Lithium