Test/Review of AWT IMR18490 1200mAh (Yellow)

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HKJ
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Test/Review of AWT IMR18490 1200mAh (Yellow)
AWT IMR18490 1200mAh (Yellow)

DSC_6746

Official specifications:
  • Nominal Voltage : 3.7V
  • Capacity: 1100mAh
  • Lowest Discharge Voltage: 2.50V
  • Standard Charge: CC/CV ( max. charging rate 16.5A )
  • Cycle Life: > 500 cycles
  • Max. continuous discharge rate: 5C

AWT%20IMR18490%201200mAh%20(Yellow)-info

This is a high current 18490 cell (18490 is basically the same as 18500)

DSC_6745

DSC_6747 DSC_6748

DSC_6749
DSC_6750

AWT%20IMR18490%201200mAh%20(Yellow)-Capacity

The two cells has an acceptable match in capacity. The capacity is as specified and fairly stable even at 15A, i.e. the cell is good at high current.

AWT%20IMR18490%201200mAh%20(Yellow)-CapacityTimeHours

AWT%20IMR18490%201200mAh%20(Yellow)-CapacityTime

AWT%20IMR18490%201200mAh%20(Yellow)-Energy

AWT%20IMR18490%201200mAh%20(Yellow)-PowerLoadTime

AWT%20IMR18490%201200mAh%20(Yellow)-TripCurrent

AWT%20IMR18490%201200mAh%20(Yellow)-Charge



Conclusion

The battery has very good high current performance and capacity is also fine for the current rating.



Notes and links

The batteries was supplied by AWT for a 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
Compare to 18650 and other batteries

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Chicken Drumstick
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Thanks for the review. Wished there where more torches that used this size though.

2 × 18500 or 3 × 18500 would make for a nice compact high powered MT-G2 or XM-L2 torch.

TheGloriousTachikoma
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Chicken Drumstick wrote:
Thanks for the review. Wished there where more torches that used this size though.

2 × 18500 or 3 × 18500 would make for a nice compact high powered MT-G2 or XM-L2 torch.

4×18500 = 3×18650

HKJ
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TheGloriousTachikoma wrote:
4x18500 = 3x18650

Usual the most interesting calculation is: 2x18500 = 3xCR123 (Both length and voltage match)

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Chicken Drumstick
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TheGloriousTachikoma wrote:
Chicken Drumstick wrote:
Thanks for the review. Wished there where more torches that used this size though.

2 × 18500 or 3 × 18500 would make for a nice compact high powered MT-G2 or XM-L2 torch.

4×18500 = 3×18650


Yeah but if you want something compact with sustained high amp draw and a stable forward voltage, or just a higher forward voltage as in the case of the MT-G2, then I think these would work really well.

A single 18650 won’t power an MT-G2 and if you want to maintain a high (above 4amp) constant output, most 18650’s will not maintain the voltage, even more so with these newer higher vf XM-L2’s that are appearing.

Your only options are 2 × 18350 and woefully low mAh or 2 × 18650 and massively bigger.

2 × 18500 however would only be the length of a Mini Maglite just slightly fatter but with considerably more capacity than 18350’s.

hank
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Maybe not worth the trouble, but it’d be a handy option for the earthquake box, to be able to use CR123 primaries.

Chicken Drumstick
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Anyone know where you can get these from?

I’ve found these on eBay but they are listed and labelled as 18500 not 18490. Anyone know if they are actually the same thing?
http://pages.ebay.com/link/?nav=item.view&alt=web&id=111562450595