Nicron 14500 USB NRB-L750 750mAh (Black-Orange)
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Official specifications:
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Product name: Nicron NRB-L750 750mAh Rechargeable 14500 Li-ion Battery
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Battery Type: USB-Port rechargeable battery
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Electric core type: High quality rechargeable lithium polymer battery
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Capacity: 750mAh
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Nominal voltage: 3.7V
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Weight: About 20g
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Size: 53mmx 14mm (Length x Diameter)
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A 14500/AA sized LiIon cell with build-in USB charger and protection.
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The two cells tracks nicely and can deliver about 2A continuous before the protection trips.
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I only got one curve from each battery, my automatic test equipment did not reset the protection with the short pulse I uses.
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Conclusion
The battery works well, but it considerable longer than a regular AA cell.
Notes and links
The batteries was supplied by Banggood 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
Graphical comparison to other LiIon batteries
Table with all tested LiIon batteries