YAOREA YR1030+ Lithium Battery Internal Resistance Tester

YR1030+ Lithium Battery Internal Resistance Tester YAOREA


True 4-wire AC sine measurement, to effectively avoids the impact of test lines and contact resistance. Two functions interface, the old battery sorting function, low power consumption and a variety of power-saving options. Test range up to 200 ohms with a minimum resolution of 0.01 milliohms and less than 5 milliohms. Press HOLD to enable the ZR function to measure internal resistance as low as 0.30-0. 50 milliohms.

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Item Performance
Model  YAOREA YR1030+
Operating voltage/charging 5 V
Maximum charging current 2 A
Nominal Capacity 230Ah
Measuring Range 0.01 mOhm ~ 200 Ohm; 0 V~28V DC
Probe cable length approx. 75 cm
Operating temperature range 10 °C~40 °C at relative humidity up to 90%
Weight 196g
Weight including probes 236g
Case material ABS
Colour Black
Dimensions 74×142×27 mm (W × H × D)
Accuracy of internal resistance measurement
Range Minimum resolution value Accuracy ± ([percentage accuracy] + [least significant digit]
20 mΩ 0.01mΩ 0.7% + 7 (if ZR function is enabled)
200 mΩ 0.1mΩ 0.5% + 5
1mΩ 0.5% + 5
20Ω 10mΩ 0.5% + 5
200Ω 0.1Ω 0.6% + 5
Voltage measurement accuracy
Range Minimum resolution value Accuracy ± (% of reading + % of range)
2V 1 mV 0.8% + 5
20V  10mV 0.8% + 5
28V 0.1 V 0.8% + 5

1. Voltage resistance with the screen at the same time measurement, measurement quickly and steadily.
2. The minimum resolution of up to 0.01 milliohms, easy-to-test large capacity, high discharge rate low resistance battery. The range can be 200 ohms and can be measured by button batteries, 9V laminated batteries, and other low-capacity small current high internal resistance batteries.
3. Voltage, and internal resistance test function, respectively, with manual automatic range function. The automatic range switch is stable and quick, the measurement shows 4 times per second update, and the basic can be locked in about 1S time range stable display. HOLD function to help you lock the display, more convenient for reading.
4. Using dot matrix LCD screen. Size font combination, which clearly shows the measurement results, but also displays rich content.
5. 2 kinds of display modes. Normal mode with the screen displays resistance and voltage, and sorting mode shows the internal resistance voltage and the level of battery classification and counting.
6. Has a three-level battery rating detection. By setting the voltage resistance rating, the battery can be grouped.
7. Built-in charging management circuit. And can be set to 200mA and 400mA with two charging currents.
8. Energy saving function. Can be set 5 – 60min shutdown delay. No operation and input, the ultra-delayed automatic shutdown. Can be set to a 5-30min delay into low power mode.

Differences Between YR1030+ and YR1035+

YR1030+ Maximum voltage: 28V

YR1035+ Maximum voltage: 100V

YR1035+ has higher voltage accuracy and resolution than YR1030+. The internal resistance accuracy is the same.


designed for measuring batteries of type Pb, Li-Ion, Ni-MH, Li-Pol, LiFePO4, Ni-H2, and Ni-Cd, as well as alkaline and dry cells, button cells, resistors, etc.

YAOREA YR1030+ Lithium Battery Internal Resistance Tester Application

It is forbidden to enter an AC signal and a DC voltage greater than 28 V.


Voltage value jitter when not measured after starting up
Under the condition of no test after starting up, it is normal that the voltage has a numerical jitter. The value is a random value, meaningless, and has no influence on the measurement results.
The internal resistance below 0.3 mΩ cannot be measured, can it?
It is not impossible to measure, and the reading error is large. For example, 1 mΩ error plus or minus 0.03 m Ω , if it is 0.2 m Ω error plus or minus 0.05 m Ω, so more than 0.3 m Ω is recommended. The measured value of 0.05 mΩ is sometimes very accurate, but the uncertainty will make the reference of little significance.
To measure the internal resistance of the 18650 battery, should it be fully charged or not?
If you want to get a general idea, you can test directly. To be precise, if it‘s a new battery, test it on a full charge. Old batteries are tested after they have been drained. But under normal conditions, the change in internal resistance is very small. The better the battery‘s internal resistance, the less it is affected by the amount of charge.
Is the instrument measuring time positive and negative? Will the connection be damaged?
Connect opposite have no influence, divide positive and negative pole. As long as it doesn‘t exceed 100V.
The figures change quickly and cannot be measured.
The test line is not in good contact with the battery, there is strong interference around or the battery is charging and discharging. Normal use will not appear jump.
Is it necessary to take off the battery line to test one of the multiple connections of electric cars? Or can you just measure it?
As long as it is not in startup, or charging, you can directly test one section.
Is it OK to measure the battery pack?
As long as the total measured voltage is less than 100V. However, the resistance of the connecting line between the batteries is often greater than the internal resistance of the battery, so the series measurement cannot accurately measure the internal resistance. It is best to measure the battery poles directly.
Can I measure the internal resistance of capacitance?
The internal resistance value of approximate capacitance.

Shipping & Delivery

Shipping Fee

FREE shipping on all orders

BatteryFinds Oversea Warehousing
Rapid delivery-overseas warehouse in US, Canada, Germany(*2), and Poland.

Delivery Countries
Asia Pacific
Japan, Korea, Malaysia, Philippines, Singapore, Thailand, Australia, New Zealand

Austria, Belarus, Belgium, Bulgaria, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, United Kingdom

* Please note that certain regions in the UK – like the Isle of Jersey – can not be delivered at the moment.
* Please note that certain regions Spain – like the Canary Islands, hueda and Melilla – can not be delivered at the moment.
* Please note that certain regions Spain – like the Azores and Madeira – can not be delivered at the moment.

Middle East

North America
Canada, United States, Mexico

* Please note that certain regions in the USA – like the Isle of Alaska, Hawaii, Puerto Rico and Guam – can not be delivered at the moment. Our delivery methods only allow us to reach the Contiguous USA.

* Is your required delivery country not included? Please feel free to contact us or email [email protected]. Please provide the shipping address and zip code to us, so that we can check the rate and service area to confirm if shipment is possible.

Our delivery time information at a glance:

Total Delivery Time = Handling Time + Transit Time (+ any holidays and weekends)

Ship to USA/North America

Warehouse Shipping Option Handling Time Estimated Delivery Time
US/CA FedEx/DHL/UPS 1~3 working days 3~7 working days
CN By sea+Express(FedEx/DHL/UPS, Tax free) 3~7 working days 30~45 working days

Ship to EU

Warehouse Shipping Option Handling Time Estimated Delivery Time
DE(*2)/POL DPD/UPS/TNT 1~3 working days 3~7 working days
CN By railway+Express(DPD/UPS/TNT, Tax free) 3~7 working days 45~60 working days

Ship to Asia Pacific/Middle East

Warehouse Shipping Option Handling Time Estimated Delivery Time
CN By sea/railway+Express(DPD/Toll/UPS/FedEx/TNT, Tax free) 3~7 working days 45~60 working days

* The above transportation time is only the reference time of most orders, excluding inspection time or other special times, such as natural accidents, congestion, and other uncontrollable factors.
* The tracking will be updated after pick up by local express. Please wait patiently or contact us for help.
* Countries that do not appear in the table, Please Click Here to consult us for freight charges.

Please read the Payment and Delivery Policy for details.

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