What is polymer battery drop test? ——A core test related to battery safety

Battery drop test, as the name suggests, is a physical testing method that simulates the impact environment that batteries may encounter 

during transportation, handling, and daily use due to accidental drops, in order to verify their structural strength and safety performance.

This test is crucial in the research and production of lithium batteries, power batteries, mobile phone batteries, laptop batteries, and even 

new energy vehicle batteries, especially in today's new energy industry where safety and reliability are increasingly valued.

1、 What is the purpose of the test?

The battery drop test is mainly conducted to verify the following aspects:

1. Mechanical strength of battery casing: Will it break or deform due to falling.

2. Whether the internal structure is stable: whether it causes internal short circuits, material displacement, and other issues after falling.

3. Whether the safety meets the standard: whether it will cause serious safety accidents such as smoking, fire, explosion, etc. due to falling.

4. Whether the electrical performance remains stable: whether there are any abnormalities in parameters such as voltage, current, and 

capacity before and after the drop.

In short, it is a safety and reliability test that simulates real unexpected scenarios.

2、What equipment is used for battery drop testing?

Professional laboratories usually use battery drop testing machines to complete the testing. This device can accurately release samples 

from a set height through electric or pneumatic means, making the falling process more standardized, controllable, and reproducible.

Our company's battery drop testing machine is widely used for safety testing of lithium batteries, power battery packs, and other products. 

It supports automatic switching of multiple drop directions, has high testing efficiency, and meets multiple international testing standards.

3、 How was it tested specifically?

Different standards have different methods for drop testing. The following are common drop test parameters:

1. Drop height: generally ranging from 1.0m to 1.5m (selected according to testing standards such as UN38.3, IEC62133, GB31241, etc.).

2. Drop direction: Six sided (up, down, left, right, front, back)+two diagonal+angular drop.

3. Number of drops: usually 1-3 times, depending on standard requirements.

4. Falling surface: different materials such as steel plates, cement floors, or wooden boards, simulate different scenarios.

5. Testing temperature: Some tests will also be conducted in high and low temperature environments to test the impact of drops under 

extreme conditions.

After testing, the staff will check whether the battery is deformed, leaking, burning, or exploding, and record any changes in electrical 

performance.

In summary:

Battery drop testing is a defense line to ensure battery safety and prevent accidents. It is a "hardcore test" that battery products must go 

through before being launched.

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