Ammi.'s Product Reviews
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Ammi.
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VERIFIED OWNER
  • JoinedMar 2013
  • Posts 64
  • Reviews 28
  • Kudos23
Overall   (5.0)
› Quality
› Value
Some technical info/measurements: 3 separate charging channels, cells are not simply connected in parallel like in other powerbanks - so you can mix any cells and they all will be charged/discharged separately. Charging current, measured at cells - 0.9-1.1A for one cell, 0.8A for each channel for 2 cells, I don't have powerful psu to properly measure current for 3 channels but it should be the same at ~1A per cell. Charging cutoff is at 4.16-4.17v per cell, no overcharing even if you leave it plugged it. Discharge cutoff is at about 2.8V per cell under load, after cutoff cell voltage increases to ~3.1V. Current draw - 0.03A with led indication turned on, 0.004A with led off and then drops to 0.000A (probably a few uA, not worth measuring) after 10 secound without load. This basically means that it consumes almost nothing in standby without load. Currend draw under load - 0.5A on USB port, 0.8A on 1 cell = about 0.78-0.82% efficiency with 1 cell, should be higher with 2-3 cells but I can't measure that (package states 85% which sounds about right). Build quality is great, nice sturdy plastic. Overall its a great powerbank, but this bundle is probably not the best choice since you won't be able to discharge cells to 2.5V and get full capacity out of them. Still it has 3 cheap 3400mAh cells (they're more expensive to buy separately from this charger) that you can use in flashlights.
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Ammi.
Verified

VERIFIED OWNER
  • JoinedMar 2013
  • Posts 64
  • Reviews 28
  • Kudos23
Overall   (5.0)
› Quality
› Value
Measured capacity at 1A discharge current to 2.3V - 3343 and 3345mAh for 2 cells. They have lower voltage under load compared to Sanyo cells and you must discharge them to 2.7V to get the full capacity (discharging to 3V will give you about 3100-3150mAh or so), but they can still handle a high current discharge just fine. And they do offer the highest capacity for 18650 cells. They can also handle high current charge, I tried up to 4A which will charge cell to 80% in 50 minutes. But that is not recommended by manufacturer (specified charge rate is 0.3C to 0.5C, 0.9A to 1.6A) and cells get hot during such charge. But you do have an option of fast charge if you need it and have capable charger. Overall - kinda expensive, but its THE best 18650 atm.
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HS1010 Illuminance Brightness Lux Meter / Light Meter
HS1010 Illuminance Brightness Lux Meter / Light Meter

Ammi.
Verified
  • JoinedMar 2013
  • Posts 64
  • Reviews 28
  • Kudos23
Overall   (4.7)
› Quality
› Value
PROS
Cheap
CONS
Probably not very accurate
Good cheap luxmeter, uses 2 common AAA batteries, measures up to 200.000 lux. I'm not sure how accurate it is, but it gives very consistent results every time in same conditions. I bought it to compare brightness of my flashlights and it works great for that.
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Ammi.
Verified

VERIFIED OWNER
  • JoinedMar 2013
  • Posts 64
  • Reviews 28
  • Kudos23
Overall   (5.0)
› Quality
› Value
Measured capacity for 2 cells, discharge on Imax B6 at 1A to 2.3v - 2930 and 2935 mAh. They have only ~100-120mAh more capacity compared to 2900 panasonic cells, not sure if price increase is worth it. Still good batteries, consistent capacity, can handle high-current charging (tried up to 4A).
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Ammi.
Verified

VERIFIED OWNER
  • JoinedMar 2013
  • Posts 64
  • Reviews 28
  • Kudos23
Overall   (5.0)
› Quality
› Value
Measured capacity for 2 cells, Imax B6 1A discharge current to 2.5V - 2594mAh and 2602mAh, a bit higher capacity compared to Samsung 2600 cells but a bit lower voltage on discharge cycle. Overall they're about the same, so if you want grey cells - buy these instead of samsung ones :)
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