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I bought this to test lithium Ion batteries and it seems to work well. You set the desired bottom voltage with the + and _ buttons and press OK. It constantly scrolls through the voltage, current draw and accumulated mhr as the battery is discharging. When it reaches the preset voltage it stops discharging and shows the total mhr. My only concern is the resistor gets extremely hot so it might be worth replacing it with a higher wattage one if using this for lots of batteries. They send a spare resistor with it so that would indicate they don't expect it to last long.
Verified purchase: Yes | Condition: New
This device works extremely well. Very impressed. For the price, it is of great use in analysing Li Ion battery capacity and sorting out dud cells. To tidy up the rig, I got rid of those parallel resistors and got a block 4 Ohm resistor. Test current is obviously a bit lower but results still accurate. there's a picture of the test rig.
Verified purchase: Yes | Condition: New
This neat little tester will enable you to run a capacity check on any of those batteries with wild exagerated claims of their capacity. It works with any battery up to 15v, you can adjust the test discharge current up to 3A by altering your load, and you can also reset the discharge cut off voltage if you disire. The first "4000 ma/h" 18650 I tried had an actual capacity of 1200 ma/h Excellent tester.
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New
Fab bit of kit iv got equipment to test batterys but its a good back up ill include it in my set up :)
Verified purchase: Yes | Condition: New