UNI-T UT677C Battery Internal Resistance Tester

Product detailed description

We offer a 3-year warranty on this product.

UT677C Internal Resistance Tester. Equipment for assessing the condition of rechargeable batteries, including lead acid and lithium batteries, by measuring their internal resistance and voltage. Using the four-pole AC method, it accurately measures the internal resistance without interfering with the resistance of the conductors. Features include data storage and retrieval, alarms, automatic shutdown, and strong interference protection, making it essential for battery manufacturing, installation, and maintenance.


Product parameters:

- internal battery resistance: 0-3Ω (4 ranges; 1μΩ);
- voltage (UT677C): 0-120 V
- manual and automatic measurement
- pC software and Bluetooth application support
- rechargeable lithium battery: 2600 mAh
- automatic shutdown and low battery indication
- fast response (200ms); test time: 2s
- data storage (500 settings)
- cE certification


Technical parameters:

- internal resistance of the battery
0.000mΩ~3 mΩ / ±1% fs. ±20 dgt 1 μ Ω
3.000mΩ~30 mΩ / ±0.5% fs. ±15 dgt 10 μΩ
3.000mΩ~300mΩ / ±0.5% fs. ±15 dgt 100 μΩ
300mΩ~3 Ω / ±0.5% fs. ±15 dgt 1mΩ

- battery voltage range:
0.000 V~±7 V / ±0.2% fs. ±10 dgt. 1 mV
7 V~100.00 V/±0.2% fs. ±10 dgt 10 mV
100V~120.00V/ ±0.2% fs. ±10 dgt 100 mV

- measuring the internal resistance of the battery
- battery voltage measurement
- battery types: lead acid batteries, lithium batteries and other battery types
- measurement methods Internal resistance:
1kHz AC 4-pole test method;
voltage at the terminals at no-load: max. 3V
test current: 2.0mA~200mA (Different ranges correspond to different test currents.)
refresh rate: 5 times/s

- interference protection : yes, auto tuning frequency : 920Hz~1080Hz
- power supply: DC 11.1V lithium battery 2600mAh
- maximum input voltage: DC 120V (between positive and negative side)
- response time: 200ms
- display: 3.5″ (480*320 colour display)
- dimensions: 170 × 115 × 65 mm (L*W*H)
- data interface: type C, save test data and upload to PC
- bluetooth
- Data hold: automatic/manual data hold
- data storage: 500 settings
- measurement evaluation function: threshold values for PASS, WARNING, FAIL evaluation can be preset
- low battery indication: YES, 5 battery charge levels
- automatic shut-off: YES, approximately 15 minutes
- weight: 674.0 g (including batteries)
- guaranteed accuracy temperature, humidity: 23 °C ± 5 °C, < 75 % relative humidity