Batterytester AT-03 Installation guide

QUICK MANUAL without PC
© Copyright Batterytester 2022
www.batterytester.nl
Page 1/2
This Quick Manual is a shortened explanation of how to test an e-bike battery with
Batterytester. For the first use we strongly advise to read the full instruction manual.
3)
Now turn Batterytester ON.
4)
Go to the Batterytester device and press one
time shortly the ‘select’ button.
5)
Test ready? Print result by pressing shortly the
‘Select’ button.
1)
Take care that the battery is fully charged.
2a)
Connect the test cable to the Batterytester.
2b)
Connect the test cable to the battery.

QUICK MANUAL without PC
© Copyright Batterytester 2022
www.batterytester.nl
Page 2/2
Explanation battery test on cashier paper:
Battery capacity tester
AT-03-HCI v8.913
www.batterytester.nl
Model tester is AT-03, Software version 8.913
SN:30016
SN = serial number tester
Date = 2018-01-19 15:05
Date and time (USB connection to PC)
Name = Bosch 36V 8 Amp
Name (USB connection to PC)
Capacity = 7.7 [Ah]
Measured capacity in Ampère hour
Test-time = 01:18:04 hh-mm-ss
Test time in hour, minutes, seconds
U-Open = 41.6 [V] Volt
Opening voltage
Ri average = 0.1 [O] Ohm
Average internal resistance
U Stop = 29.9 [V] Volt
Lower limit Voltage
U Min = 30.0 [V] Volt
Latest measured Voltage
U average = 38.8[V] Volt
Average measured Voltage
I average = 5.9 [A] Ampère
Average discharge current Ampère
Capacity = 276 [Wh]
Measured capacity in Watt hour
Guidelines testing e-bike batteries:
1. Check the internal resistance (Ri), normally 0.0 till 0.2 ohm. If between 0.2 –0.3 ohm
critical. If Ri > 0.3 = rejected. Possible causes when this is higher than 0.3 ohm:
•Battery broken, reduced capacity, failure in case of mountain tours.
•Current set too high for the type of battery, reduce current.
•Bad connection between battery and tester, check cable and connectors.
2. Check Uopen, the open clamping voltage has to approach the charge voltage, normally
0.2V to 1V lower. In case this is lower, leave the battery for 4 hours and recharge.
Possible reasons when this is lower:
•Battery not fully charged.
•Charger is broken (too low end voltage).
•Battery broken, reduced capacity (e.g. because of imbalance in cells)
3. Check Umin. This is the last measured voltage before end of test. One can conclude
from this figure if the battery has been discharged completely. If this is too high, the
battery has not been fully discharged. Possible reasons:
•Discharge current is set too high because of which the tester thermally turns off. Turn
the ‘select’ button in order to resume test (reduce discharge current).
•Cable between battery and tester is disconnected, check cable and resume test.
•Battery broken, reduced capacity (bad cells because of which BMS turns off).
4. Check the capacity, Ah and Wh and compare these tot the battery specifications. When
lower than approx. 70% the battery has been ‘economically’depreciated.