Specification:
Power source voltage: DC4.5-6V (microUSB)
Working current: 70mA
Discharge voltage: 1.00V-15.00V, 0.01V resolution
Limit voltage range: 0.5-11.0 V
Supported current: 3.000A, resolution 0.001A
Voltage test error: lt;1% + 0.02 V
Current test error: lt;1.2% + - 0.002 A
Battery capacity range: 9999 Ah
Weight: 27 g (approx.)

Package List:
1 * Battery capacity indicator
2 * resistors (5 W, 7.5 R)
1 set * fasteners

Note:
The resistance load heats up during the discharge process.
The current must not exceed 3.0 A when the battery voltage is fully charged.

Error code and meaning:
Err1: The battery voltage is higher than 15VErr2: The battery voltage is lower than the set cut-off voltage
Err3: The discharge current is too high for the battery or the internal resistance of the circuit is too large
Err4: Power is too high (current is more than 3.1A)
Err5: Improper use or burnt tester due to improper connection (current sensing or MOS control switch