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Nice gadget let's you test and charge lithium batteries. Lets you know exactly how many mAh have gone into the battery when charging and if you do a discharge test lets you know exactly how many mAh have come out of the battery. You can use it on other batteries but I only use it for lithium, you can even use it to charge a car battery and it will let you know exactly how much energy has gone into it.
Verified purchase: Yes | Condition: Pre-owned
I couldn't get the calibration menu up by pressing buttons 2 and 4 together and then powering up (probably because it's a clone), so I tried other combinations of buttons. Pressing buttons 1 and 4 together and powering up killed it. Now it goes straight into battery test mode and concludes that there's a connection failure, without any means to recover from this condition. It's dead. Why on earth would anybody design a microprocessor-controlled device that allows the user to irrecoverably damage it as part of the program, and to top it all, not let the user know about this facility? Very poor design.
Verified purchase: Yes | Condition: Pre-owned
It does work, so 2 stars for that, but it's not great - it's slow to charge (around 20-25% slower than other chargers) - the voltage & amp measurements are off & that may explain why, but increasing the ampage does not really improve the charging speed - ie: doubling the ampage only shortens the charge time by around 10% - 2S charging is dangerous because the charger does not seem to be able to detect when the battery is full. 3S & 4S batteries are ok - haven't tested 5S or 6S - Discharging makes the unit hot - even when discharging at a low rate.
Verified purchase: Yes | Condition: Pre-owned
need to buy separate mains adaptor ..... loads on market but getting one with correct volts / amps and tip can take a while and likely come from china in 4 - 5 weeks time
Verified purchase: Yes | Condition: New
Verified purchase: Yes | Condition: New