Name: 3.7V Battery Internal Resistance Tester
Brand: Tool
SKU: 906
Availability: InStock

3.7V Battery Internal Resistance Tester

Size chart

Clothing Size Conversion Chart
Category	US	EU	UK	Chest (in)	Waist (in)	Hips (in)
Men	XS	44	34	32-34	26-28	33-35
	S	46	36	34-36	28-30	35-37
	M	48	38	38-40	32-34	39-41
	L	50	40	42-44	36-38	43-45
	XL	52	42	46-48	40-42	47-49
Women	XS	32	6	31-32	24-25	33-34
	S	34	8	33-34	26-27	35-36
	M	36	10	35-36	28-29	37-38
	L	38-40	12-14	37-39	30-32	39-41
	XL	42	16	40-42	33-35	42-44
Youth	XS	128	7	26-28	23-24	26-28
	S	134	8	28-30	24-25	28-30
	M	140	10	30-32	25-26	30-32
	L	146	12	32-34	26-27	32-34
	XL	152	14	34-36	27-28	34-36

Pants Size Conversion Chart
Category	US	EU	UK	Waist (in)	Hip (in)	Inseam (in)
Men	28	44	28	28	34	30
	30	46	30	30	36	31
	32	48	32	32	38	32
	34	50	34	34	40	33
	36	52	36	36	42	34
Women	0	32	4	24	34	30
	2	34	6	25	35	30
	4	36	8	26	36	31
	6	38	10	27	38	32
	8	40	12	28	40	32

Shoes Size Conversion Chart
Category	US	EU	UK	Foot Length (in)
Men	6	39	5.5	9.25
	7	40	6.5	9.625
	8	41	7.5	10
	9	42	8.5	10.25
	10	43	9.5	10.625
	11	44	10.5	11
	12	45	11.5	11.25
	13	46	12.5	11.625
Women	5	35	2.5	8.5
	6	36	3.5	8.875
	7	37	4.5	9.25
	8	38	5.5	9.625
	9	39	6.5	10
	10	40	7.5	10.25
	11	41	8.5	10.625
	12	42	9.5	11
M (Unisex)	5	37	4.5	8.75
	6	38	5.5	9
	7	39	6.5	9.5
	8	40	7.5	10
	9	41	8.5	10.25
	10	42	9.5	10.625
	11	43	10.5	11
	12	44	11.5	11.25

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Battery internal resistance tester is a device used to measure the internal resistance of lithium-ion batteries. Battery internal resistance is an important parameter that affects the performance of the battery such as efficiency, capacity and life time. 3.7V battery internal resistance tester is widely used in battery internal resistance testing, battery module testing, battery R&D measurement, high voltage battery pack testing, high speed mass production line testing of lithium batteries, lead-acid batteries, button batteries and so on.

Features:

PC software: Read real-time battery internal resistance tester value, read battery internal resistance tester history, synchronize computer time to battery internal resistance tester and so on.
Voltage measurement: The internal battery resistance tester can also be used as a DC voltmeter, just connect the two red and black interfaces in the center to measure. DC voltage, pay attention not to measure AC voltage, as well as DC voltage does not exceed 70V.
Temperature measurement: Insert the temperature sensor into the TEMP.SEN-SOR interface, the display interface can show the current ambient temperature, but not connected to the sensor is not displayed.
5000 groups of data storage: battery resistance tester can be set up internally to save, storage mode, memory selection, a total of ABCDEFGHIJ ten storage options, such as the current memory has been stored in the memory full of 500 groups of data, the storage of data prompts the memory is full (full symbol), you need to manually set up other memories or delete the data in the current memory in order to store the new measurement data.

Specification:

Model	T-BRT-UT677A
Power supply	DC 3.7V lithium battery
Precision guaranteed temperature and humidity	23℃±5℃, below 75%rh
Resistance resolution	1 uΩ
Voltage resolution	1 mV
Temperature resolution	0.1℃
Measuring range	Internal resistance measurement: 0.000mQ~3.100Q (4 ranges) Voltage measurement: 0.000V~71.00V (2 ranges) Temperature measurement: -10.0° C ~ 60.0° C (single range)
Maximum input voltage	DC 70V (between +measurement terminal and -measurement terminal), no AC input
Measurement method	Internal resistance measurement: 1KHz AC 4-terminal test method, open terminal voltage 3Vmax Measuring current: 2.0mA~200mA (different measuring current for different ranges) Temperature measurement: NTC temperature sensor (10KQ at 26C) A/D conversion method: successive approximation type Display update frequency: 5 times /second
Response time	200ms
Measurement time	Approx 2 seconds
LCD size	70.1mm52.6mm/3.5 inch (320240 resolution 16-bit true colour screen)
Instrument size	190mm121mm51mm
USB connection	With a USB interface, stored data can be uploaded to the computer, save,d and print
Bluetooth connection	Yes
Hold and store function	With manual hold and storage, automatic hold and storage
Measurement judgment function	PASS, WARNING, and FAIL judgment thresholds can be preset
Battery voltage	Battery level 5 grid display, battery voltage is low to ensure timely charging
Automatic switch-off	Power on without operation, about 15 minutes after the automatic shutdown (can be turned off in the settings)
Power consumption	300mA MIN/500mA MAX
Weight	480g(with battery)
Working temperature and humidity	-10℃~40℃; 80%RH or less
Storage temperature and humidity	-20℃~60℃; 70%RH or less
Insulation resistance	20MΩ or more (500V between circuit and case)
Withstanding voltage	AC 3700VIRMS (between circuit and case)
External magnetic field	<40A/m
External electric field	<1V/m
Suitable for safety regulations	IEC 61010

Package List:

Tips:What is an internal battery resistance tester?

Internal Battery Resistance Tester is a professional tool used to measure the internal resistance of a battery, which can help determine the health and performance performance of the battery.

Battery internal resistance is the resistance encountered when the current flows inside the battery (unit: milliohm/mΩ), which is determined by the electrode material, electrolyte, chemical reaction efficiency and other factors.

The higher the resistance value, the lower the output efficiency of the battery, which is manifested by a fast voltage drop and a weakened power supply capability (e.g., a sudden drop in range and difficulty in starting a car).