Overview: The TK15 is a new type of the high precision current collection capacity indicating parameter instrument, which is compatible with lithium battery,lithium iron phosphate batteries,lead-acid batteries and nikel-metal hydride batteries,hereinafter referred to as coulometer. It can collect the working state of the battery at anytime. It has various fatures,such as a wide range of operating voltage, low power, high accuracy in indicating. It can set the payload capacity and other parameters of batteries arbitrarily, and with automatic memory function when power down. Desciption: Type: Battery testerModel: TK15Operating voltage range: DC8-80VCurrent: 50AOverall Size: 66x40x10mmDisplay area size: 32x23mmExternal normal Sampler Size:23x18x5mm Technical Parameters: Working power consumption: 8.0mA (Max:10.0mA)Standby power consumption: 0.5mA (Max:0.8mA)Sleep power consumption: 50uA (Max:60uA)Voltage acquisition accuracy: +/-1.0%Current acquisition accuracy: +/-1.0%Using ambient temperature rang: 0-35CBacklight on current: 40mA (Max:50mA)Backlight off current: 30mA (Max: 40mA)Battery capacity setting value: 0.-590AExternal normal sampler working current:30.0A (Max:50A)External big sampler working current:50.0A (Max:100A) Attention: The min voltage of the battery pack should higher than the min working voltage of the coulometer Features: 1.The empty and full voltage of battery can be adjusted2.The backlight automatic open when using3.Automatic memory function when power down4.Fast response rate5.Low power consumption, automatic wake-up Display: 1.Residual capacity of battery (Ah or mAh)2.Capacity percentage and totem pole display3.Battery voltage4.Battery current5.Powe output6.Remaining time of charge and discharg Wiring diagram Fix the coulometer with tapping screws from the front of the panel. As shown below: The panel displayed in the picture is not included, it is only virtual, and the reality does not exist.The panel here refers to the location where you installed. If you install it on the wall, your wall is the panel. If you install it on the desktop, then the desktop is the panel. Capacity and voltage setting 1. Pre the key for 3 seconds in the main interface and enter the engineering mode; Package Dimension Package Include 1 x 50A Battery Tester1 x Shielded Wire (1m)1 x User Manual Product Photo