Introduce the analysis and testing methods of several faults commonplace in batteries

2022/04/08

  Author :Iflowpower – Portable Power Station Supplier

1) Battery group individual monomer failure; items: running time, short mileage. Detection method: When the vehicle is traveling to the total voltage close to the protection voltage (can be calculated according to 1.8V / single-single), open the electricity load (including headlights, thermal wind turbines or light on the electric shutter), and the current value is displayed as simulated as much as possible 3h Rate current discharge state, measuring battery cell voltage to find fault battery.

Common reasons: a. Battery short circuit B, battery circuit C, battery backward treatment method: replace short circuit, open circuit battery, lagging battery after activation, then placed in the entire group, it is still serious after a few cycles. (2) The cells of the battery pack are inconsistent; the items: running time, short mileage.

Detection method: same detection method. Common reasons: a. Battery connection line long short gap; b.

Battery group reconsides with over discharge; c. The consistency of battery pack is not high; E. Loss is stored, long-term arrears.

Treatment: The above reasons can be made after the entire set of batteries is filled with electricity (if the condition can be activated), and the discharge is discharged to one battery to protect the battery value. Battery capacity is the capacity of the whole set of batteries. If the whole group capacity is too different from the nominal capacity, it is not recommended to replace it.

(3) The plastic shell near the battery terminal or the terminal is burn seriously; the table is shown: the battery connection terminal is detached, the plastic shell is melted in the vicinity of the terminal, burns. Detection method: visual (terminal, bolt, connection line with fire solder joints, metal plating, black hole, etc.).

Common reasons: a. The terminal and the connecting line are not connected firm, back and forth; B. The square is not enough, the station is small; C.

It does not have an oxide near the terminal and the connection line for a long time; D. Exterior moment Short circuit. Treatment method: About battery proposal to burn severely replacement, and use the surface slightly injured battery to use after simple processing.

(4) Battery leakage table icon: battery positive, negative electrode and battery housing or car body. Detection method: multimeter measurement. Common reasons: A.

There is no clean conductive material at the battery on the battery; B. Battery housing rupture; C. External line short circuit treatment method: Recommended replacement, check line for line short circuit.

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