Measuring instruments

Battery charger and tester.
Quick charging of 4.2V batteries. Charging time is approx. 45min.
Has the button to activate a battery at rest in order to reactivate it.
Features:
Suitable for Samsung, iPhone.
iPhone: 4G, 4S, 5G, 5S/5C, 6G/6S, 6+/6S+, 7/7+, 8/8+, X
iPad 1, 2, 3, 4, Mini2, Mini3, Mini4, Air, Air 2, Pro
Samsung, Mi, Huawei, OPPO etc... 
Requires a power supply above 2.5V to work properly.
The maximum load current is 2A.
This product is not only of advanced and safe design, but also allows fast and efficient charging speed.
It can detect an unwanted battery that is malfunctioning or charging poorly to save you valuable time.

Short circuit tester.
It's hard to find a short circuit without a little help.
With this controlled power supply, you can inject a precise current into the circuit.
At the point of the short-circuit, there's a temperature effect that you can control.
High current means you're causing a high temperature at the short-circuit point.
Low current means that you cause a low temperature at the point of the short circuit.
Depending on the circuit you're repairing, you can modulate the current and temperature at the short-circuit location.
Then all you have to do is measure the temperature and find out where the short is.
Now all you have to do is remove the problem.

Batteries charging and testing unit
Battery activation board for reviving a dead flat battery
Includes live voltage and current readouts
Suitable for a wide range of iOS, Android and Apple Watch devices
Suitable for reviving and charging a battery while monitoring the charging health